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Issue with persisting from MemoryStream in XamlPackage format

Posted By: Posted Date: October 22, 2010 Points: 0 Category :WPF

I am trying to persist some data from a rich text box to a BLOB in a database

		void TestCode2()
		{
			TextRange range = new TextRange(this.richTextBox1.Document.ContentStart, this.richTextBox1.Document.ContentEnd);

			MemoryStream mem = new MemoryStream();

			range.Save(mem, System.Windows.DataFormats.XamlPackage);
			mem.Flush();

			byte[] persist = mem.GetBuffer();

			MemoryStream mem2 = new MemoryStream(persist);
			try
			{
				range.Load(mem2, System.Windows.DataFormats.XamlPackage);
			}
			catch (ArgumentException ex)
			{
				System.Diagnostics.Debug.WriteLine(string.Format("Exception {0}", ex.Message));
			}
		}

The code above summarizes what I am trying to do.

But the main problem is an ArgumentException is being thrown.

But if do the following everything works OK:

		void TestCode()
		{
			TextRange range =  

                                     
                                            
                                        

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