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RajaVigneshBRajaVigneshB
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Merge pull request #62 from SyncfusionExamples/WPF-899019
899019 - How to show a custom password dialog box for the password protected document in PdfViewer
2 parents d195f12 + 451762e commit 6589e4b

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‎Custom-password-dialog-box/App.config

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
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</startup>
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</configuration>

‎Custom-password-dialog-box/App.xaml

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<Application x:Class="CustomPasswordDialog.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:CustomPasswordDialog"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎Custom-password-dialog-box/App.xaml.cs

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using System.Windows;
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namespace CustomPasswordDialog
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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}
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}

‎Custom-password-dialog-box/CustomPasswordDialog.csproj

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{16097611-C1FC-42D6-B7EF-0321487CC62C}</ProjectGuid>
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<OutputType>WinExe</OutputType>
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<RootNamespace>CustomPasswordDialog</RootNamespace>
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<AssemblyName>CustomPasswordDialog</AssemblyName>
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<TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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<WarningLevel>4</WarningLevel>
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<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
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<Deterministic>true</Deterministic>
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<TargetFrameworkProfile />
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.PdfViewer.WPF" Version="*" />
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<Reference Include="System" />
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<Reference Include="System.Data" />
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<Reference Include="System.Drawing" />
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<Reference Include="System.Xml" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="System.Net.Http" />
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<Reference Include="System.Xaml">
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<RequiredTargetFramework>4.0</RequiredTargetFramework>
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</Reference>
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<Reference Include="WindowsBase" />
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<Reference Include="PresentationCore" />
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<Reference Include="PresentationFramework" />
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</ItemGroup>
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<ItemGroup>
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<ApplicationDefinition Include="App.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</ApplicationDefinition>
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<Page Include="MainWindow.xaml">
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<Generator>MSBuild:Compile</Generator>
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<SubType>Designer</SubType>
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</Page>
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<Compile Include="App.xaml.cs">
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<DependentUpon>App.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="MainWindow.xaml.cs">
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<DependentUpon>MainWindow.xaml</DependentUpon>
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<SubType>Code</SubType>
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</Compile>
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Properties\AssemblyInfo.cs">
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<SubType>Code</SubType>
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</Compile>
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<Compile Include="Properties\Resources.Designer.cs">
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<AutoGen>True</AutoGen>
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<DesignTime>True</DesignTime>
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<DependentUpon>Resources.resx</DependentUpon>
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</Compile>
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<Compile Include="Properties\Settings.Designer.cs">
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<AutoGen>True</AutoGen>
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<DependentUpon>Settings.settings</DependentUpon>
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<DesignTimeSharedInput>True</DesignTimeSharedInput>
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</Compile>
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<EmbeddedResource Include="Properties\Resources.resx">
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<Generator>ResXFileCodeGenerator</Generator>
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<LastGenOutput>Resources.Designer.cs</LastGenOutput>
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</EmbeddedResource>
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<None Include="Properties\Settings.settings">
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<Generator>SettingsSingleFileGenerator</Generator>
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<LastGenOutput>Settings.Designer.cs</LastGenOutput>
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</None>
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</ItemGroup>
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<ItemGroup>
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  <Page Include="PasswordDialog.xaml">
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    <Generator>MSBuild:Compile</Generator>
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    <SubType>Designer</SubType>
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  </Page>
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  <Compile Include="PasswordDialog.xaml.cs">
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    <DependentUpon>PasswordDialog.xaml</DependentUpon>
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  </Compile>
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</ItemGroup>
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<ItemGroup>
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<None Include="App.config" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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</Project>

‎Custom-password-dialog-box/CustomPasswordDialog.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.12.35707.178 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CustomPasswordDialog", "CustomPasswordDialog.csproj", "{16097611-C1FC-42D6-B7EF-0321487CC62C}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{16097611-C1FC-42D6-B7EF-0321487CC62C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{16097611-C1FC-42D6-B7EF-0321487CC62C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{16097611-C1FC-42D6-B7EF-0321487CC62C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{16097611-C1FC-42D6-B7EF-0321487CC62C}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

‎Custom-password-dialog-box/CustomPasswordDialog_NET.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>WinExe</OutputType>
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<TargetFramework>net8.0-windows</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<UseWPF>true</UseWPF>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.PdfViewer.WPF" Version="*" />
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</ItemGroup>
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</Project>

‎Custom-password-dialog-box/CustomPasswordDialog_NET.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.12.35707.178 d17.12
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CustomPasswordDialog_NET", "CustomPasswordDialog_NET.csproj", "{34EA9804-D9B3-463E-A25A-886A99DD457B}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{34EA9804-D9B3-463E-A25A-886A99DD457B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{34EA9804-D9B3-463E-A25A-886A99DD457B}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{34EA9804-D9B3-463E-A25A-886A99DD457B}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{34EA9804-D9B3-463E-A25A-886A99DD457B}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal

‎Custom-password-dialog-box/MainWindow.xaml

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<Window x:Class="CustomPasswordDialog.MainWindow"
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xmlns:PdfViewer="clr-namespace:Syncfusion.Windows.PdfViewer;assembly=Syncfusion.PdfViewer.WPF"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:CustomPasswordDialog"
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mc:Ignorable="d"
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Title="MainWindow" WindowState="Maximized">
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<Grid>
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<Grid.RowDefinitions>
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<RowDefinition Height="40"/>
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<RowDefinition Height="*"/>
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</Grid.RowDefinitions>
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<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Grid.Row="0">
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<Button x:Name="openPDFbutton"
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Content="Open PDF"
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Width="70"
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Margin="5"
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Click="openPDFbutton_Click"/>
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</StackPanel>
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<PdfViewer:PdfViewerControl
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x:Name="pdfViewer"
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Grid.Row="1"
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GetDocumentPassword="pdfViewer_GetDocumentPassword"
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ErrorOccurred="pdfViewer_ErrorOccurred"/>
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</Grid>
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</Window>

‎Custom-password-dialog-box/MainWindow.xaml.cs

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using Microsoft.Win32;
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using Syncfusion.Windows.PdfViewer;
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using System;
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using System.IO;
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using System.Security;
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using System.Windows;
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using System.Windows.Controls.Primitives;
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using System.Windows.Controls;
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namespace CustomPasswordDialog
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{
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/// <summary>
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/// Interaction logic for MainWindow.xaml
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/// </summary>
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public partial class MainWindow : Window
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{
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string preLoadPDF;
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PasswordDialog passwordDialog;
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public MainWindow()
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{
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InitializeComponent();
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pdfViewer.Loaded += PdfViewer_Loaded;
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}
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private void PdfViewer_Loaded(object sender, RoutedEventArgs e)
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{
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DocumentToolbar toolbar = pdfViewer.Template.FindName("PART_Toolbar", pdfViewer) as DocumentToolbar;
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ToggleButton FileButton = (ToggleButton)toolbar.Template.FindName("PART_FileToggleButton", toolbar);
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//Iterating the File Context menu and hides the Open button
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ContextMenu FileContextMenu = FileButton.ContextMenu;
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foreach (MenuItem FileMenuItem in FileContextMenu.Items)
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{
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if (FileMenuItem.Name == "PART_OpenMenuItem")
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FileMenuItem.Visibility = Visibility.Collapsed;
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}
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}
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private void openPDFbutton_Click(object sender, RoutedEventArgs e)
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{
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GetPDFfromLocalStorage();
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}
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private void GetPDFfromLocalStorage()
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{
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try
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{
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var openPdfDialog = new OpenFileDialog()
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{
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DefaultExt = "pdf",
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Filter = "Pdf files|*.pdf",
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Title = "Search a PDF",
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FilterIndex = 1,
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InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop),
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};
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if (openPdfDialog.ShowDialog()==true && File.Exists(openPdfDialog.FileName))
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{
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preLoadPDF = openPdfDialog.FileName;
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pdfViewer.ReferencePath = AppDomain.CurrentDomain.BaseDirectory;
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pdfViewer.Load(preLoadPDF);
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}
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}
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catch (System.Exception ex)
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{
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Console.WriteLine("Unexpected error" + ex.Message);
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}
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}
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/// <summary>
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/// Occurs every time when you try to open a password protected PDF file in run-time
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/// </summary>
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private void pdfViewer_GetDocumentPassword(object sender, Syncfusion.Windows.PdfViewer.GetDocumentPasswordEventArgs e)
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{
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//Initiating the added Custom password dialog box
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passwordDialog = new PasswordDialog();
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passwordDialog.ShowDialog();
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if (passwordDialog.DialogResult == true && !string.IsNullOrEmpty(passwordDialog.password))
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{
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SecureString secureString = ConvertToSecureString(passwordDialog.password);
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e.Password = secureString;
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}
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//Hnadling the GetDocumentPasssword event so that the internal event did not execute
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e.Handled = true;
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}
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/// <summary>
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/// Triggered whenever the wrong password is entered for the PDF
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/// </summary>
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private void pdfViewer_ErrorOccurred(object sender, Syncfusion.Windows.PdfViewer.ErrorOccurredEventArgs args)
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{
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if (passwordDialog.DialogResult == true && args.Message == "Can't open an encrypted document. The password is invalid.")
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{
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MessageBox.Show(args.Message);
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//Reloads the same document whenever entered the wrong password until correct one is given
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pdfViewer.Load(preLoadPDF);
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}
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}
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/// <summary>
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/// Converts the recieved string to a SecureString object
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/// </summary>
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/// <param name="secureString">Password of the document in string format</param>
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/// <returns>Converted SecureString</returns>
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private SecureString ConvertToSecureString(string secureString)
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{
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SecureString passsword = new SecureString();
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foreach (char c in secureString)
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{
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passsword.AppendChar(c);
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}
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passsword.MakeReadOnly();
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return passsword;
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}
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}
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}

‎Custom-password-dialog-box/PasswordDialog.xaml

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<Window x:Class="CustomPasswordDialog.PasswordDialog"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:local="clr-namespace:CustomPasswordDialog"
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mc:Ignorable="d"
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Title="PasswordDialog" Height="200" Width="400" WindowStartupLocation="CenterScreen">
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<Grid Margin="10">
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<Grid.RowDefinitions>
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<RowDefinition Height="*" />
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<RowDefinition Height="100" />
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</Grid.RowDefinitions>
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<Grid.ColumnDefinitions>
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<ColumnDefinition Width="auto" />
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<ColumnDefinition Width="*" />
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</Grid.ColumnDefinitions>
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<TextBlock Text="Enter Your Password:" FontSize="14" Margin="5,0,0,0"/>
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<PasswordBox x:Name="paswordInput" Grid.Row="0" Grid.Column="1" Height="20" Width="100" Margin="20,0,0,20" HorizontalAlignment="Center"/>
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<StackPanel Grid.Row="1" Grid.Column="1" Orientation="Horizontal" HorizontalAlignment="Center" Margin="0,10,0,0">
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<Button Content="OK" Width="75" Height="30" Margin="5" Click="OkButton_Click"/>
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<Button Content="Cancel" Width="75" Height="30" Margin="5" Click="CancelButton_Click"/>
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</StackPanel>
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</Grid>
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</Window>

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