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Improves Exception Message to show what part is missing. - #1971 #1974

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Improves Exception Message to show what part is missing. - #1971 #1974

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233c070
added try catch
mkaszewiak Nov 21, 2025
669eca9
removed extra comment
mkaszewiak Nov 21, 2025
08667e1
removed uneeded changes
mkaszewiak Nov 21, 2025
a0b2c73
removed catch
mkaszewiak Nov 26, 2025
230b53f
Formating reverted
mkaszewiak Nov 26, 2025
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2 changes: 1 addition & 1 deletion src/DocumentFormat.OpenXml.Features/DocumentFormat.OpenXml.Features.csproj
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">

<PropertyGroup>
<IncludeFrameworkShims>true</IncludeFrameworkShims>
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15 changes: 13 additions & 2 deletions src/DocumentFormat.OpenXml.Framework/Packaging/OpenXmlPart.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,8 +43,19 @@ internal void Load(OpenXmlPackage? openXmlPackage, OpenXmlPart? parent, Uri uriT

SetPackage(openXmlPackage, parent);

// TODO: should we delay load?
var part = _openXmlPackage.Features.GetRequired<IPackageFeature>().Package.GetPart(uriTarget);
IPackagePart? part = null;
try
{
// TODO: should we delay load?
part = _openXmlPackage.Features.GetRequired<IPackageFeature>().Package.GetPart(uriTarget);
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@twsouthwick twsouthwick Nov 21, 2025

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Could we make the Getpart return null when there's this failure? Then we can just check for a null

}
catch (InvalidOperationException ex)
{
var errorMessage = SR.Format(
ExceptionMessages.SpecifiedPartNotFound,
uriTarget.OriginalString, ex.Message);
throw new InvalidOperationException(errorMessage);
}

Features.Set<IPackagePartFeature>(new PackagePartFeature(part));

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11 changes: 11 additions & 0 deletions src/DocumentFormat.OpenXml.Framework/Resources/ExceptionMessages.Designer.cs
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5 changes: 5 additions & 0 deletions src/DocumentFormat.OpenXml.Framework/Resources/ExceptionMessages.resx
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Original file line number Diff line number Diff line change
Expand Up @@ -417,4 +417,9 @@
<data name="EncryptedPackageNotSupported" xml:space="preserve">
<value>Encrypted packages are not supported.</value>
</data>
<data name="SpecifiedPartNotFound" xml:space="preserve">
<value> Part: {0} doesn't exist in the package.

Original Message:{1}</value>
</data>
</root>
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