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fix unhandled error occurs when loading a file with invalid XML forma… #438

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fix unhandled error occurs when loading a file with invalid XML forma… #438

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36 changes: 25 additions & 11 deletions src/Application/FormSchemas.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -796,22 +796,36 @@ public XmlSchema ValidateSchema(DataGridViewRow row, string filename)
public XmlSchema LoadSchema(string filename)
{
if (string.IsNullOrEmpty(filename)) return null;
using (var r = new XmlTextReader(filename, new NameTable()))
try
{
return XmlSchema.Read(r, (sender, args) =>
using (var r = new XmlTextReader(filename, new NameTable()))
{
if (args.Exception is XmlSchemaException se)
return XmlSchema.Read(r, (sender, args) =>
{
LogError($"{args.Message} See line {se.LineNumber} pos {se.LinePosition} of {se.SourceUri}");
}
else
{
LogError(args.Message);
}
});
if (args.Exception is XmlSchemaException se)
{
this.LogError($"{args.Message} See line {se.LineNumber} pos {se.LinePosition} of {se.SourceUri}");
}
else
{
this.LogError(args.Message);
}
});
}
}
catch (XmlException xe)
{
// The files that do not meet the basic XML structure,
// such as empty files or files with unclosed tags
this.LogError($"{xe.Message} See line {xe.LineNumber} pos {xe.LinePosition} of {xe.SourceUri}");
return null;
}
catch (Exception e)
{
this.LogError(e.Message);
return null;
}
}

}

class SchemaDialogNewRow : SchemaDialogCommand
Expand Down