Small bugfixes in the DeleteOnSubmit workflow (didn't work with datetimes), and fixed an error when you didn't have any validationmessages setup

Author: TimoPerplex

Perplex.Umbraco.Forms/FieldTypes/PerplexFileUpload.cs

@@ -89,7 +89,7 @@ public override IEnumerable<string> ValidateField(Form form, Field field, IEnume
                         postedValues = null;
                         return (IEnumerable<string>)new string[1]
                           {
-                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.First(x => x.Key == "AllowedFileTypesErrorMessage").Value ?? ""), (object) field.Caption)
+                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.FirstOrDefault(x => x.Key == "AllowedFileTypesErrorMessage").Value ?? ""), (object) field.Caption)
                           };
                     }
                 }
@@ -112,7 +112,7 @@ public override IEnumerable<string> ValidateField(Form form, Field field, IEnume
                         postedValues = null;
                         return (IEnumerable<string>)new string[1]
                           {
-                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.First(x => x.Key == "MaximumFileSizeErrorMessage").Value ?? ""), (object) field.Caption)
+                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.FirstOrDefault(x => x.Key == "MaximumFileSizeErrorMessage").Value ?? ""), (object) field.Caption)
                           };
                     }
 

Perplex.Umbraco.Forms/FieldTypes/PerplexImageUpload.cs

@@ -92,7 +92,7 @@ public override IEnumerable<string> ValidateField(Form form, Field field, IEnume
                             postedValues = null;
                             return (IEnumerable<string>)new string[1]
                           {
-                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.First(x => x.Key == "AllowedFileTypesErrorMessage").Value ?? ""), (object) field.Caption)
+                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.FirstOrDefault(x => x.Key == "AllowedFileTypesErrorMessage").Value ?? ""), (object) field.Caption)
                           };
                         }
                     }
@@ -115,7 +115,7 @@ public override IEnumerable<string> ValidateField(Form form, Field field, IEnume
                             postedValues = null;
                             return (IEnumerable<string>)new string[1]
                           {
-                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.First(x => x.Key == "MaximumFileSizeErrorMessage").Value ?? ""), (object) field.Caption)
+                            string.Format(StringExtensions.ParsePlaceHolders(field.Settings.FirstOrDefault(x => x.Key == "MaximumFileSizeErrorMessage").Value ?? ""), (object) field.Caption)
                           };
                         }
 

Perplex.Umbraco.Forms/Workflows/DeleteOnSubmitWorkflow.cs

@@ -50,7 +50,26 @@ public override WorkflowExecutionStatus Execute(Record record, RecordEventArgs e
 
             // Clear the entry data and replace with a "-"
             foreach (var field in e.Record.RecordFields)
-                field.Value.Values = new List<object>() { "-" };
+            {
+                // Determine by datatype which nullable value we should use
+                switch (field.Value.DataType)
+                {
+                    case FieldDataType.Integer:
+                        field.Value.Values = new List<object>() { 0 };
+                        break;
+                    case FieldDataType.DateTime:
+                        field.Value.Values = new List<object>() { new DateTime(1900, 01, 01) }; // cannot use minvalue :/
+                        break;
+                    case FieldDataType.Bit:
+                        field.Value.Values = new List<object>() { false };
+                        break;
+                    case FieldDataType.String:
+                    case FieldDataType.LongString:
+                    default:
+                        field.Value.Values = new List<object>() { "-" };
+                        break;
+                }
+            }
 
             //The re-generate the record data
             e.Record.GenerateRecordDataAsJson();