Hello
Thank you (both) for your reply
The problem appears to be related to saving and reloading the contents of
the RichTextBox. If I save the contents of the rich text box using .SaveFile
after changing colors of some of the words. Then I reload the text with
..LoadFile. Next insert some text in the middle of the loaded text by typing
somthing. Now change the color of say, the first word, you lose the inserted
text.
How can I send you the modified example?
"""Ji Zhou [MSFT]""" wrote:
Quote:
> Hello John,
>
> Thanks for using Microsoft Newsgroup Support Service, my name is Ji Zhou
> [MSFT] and I will be working on this issue with you.
>
> Based on my understanding, the issue we are now facing is, when we set the
> second set of characters' font and color in the RichTextControl, the
> previous set font and color are lost, right? Please feel free to correct me
> if I have misunderstood your issue.
>
> Your codes look very well, and I have also tested them on my side, but the
> result is same as breitak's. I cannot reproduce the issue. No matter how
> many times I set the selected text's font and color, the previous set font
> and color remains ok. I have uploaded my project in the following link, and
> would you like to download it and test it will work on your side?
>
> http://cid-c2e0d62e8a095a30.skydrive.../RichTextContr
> olFontIssue.zip
>
> For your convenience, I also post my core codes here,
>
> private String m_TextToInsert = "Default";
> private delegate void DelegateChangeFont();
> private DelegateChangeFont m_ChangeFontD;
>
> private void Form1_Load(object sender, EventArgs e)
> {
> this.m_ChangeFontD = new DelegateChangeFont(ChangeFont);
> }
>
> private void button1_Click(object sender, EventArgs e)
> {
> m_ChangeFontD();
> }
>
> private void button2_Click(object sender, EventArgs e)
> {
> Thread t = new Thread(ChangeFont);
> t.Start();
> }
>
> private void ChangeFont()
> {
> if (InvokeRequired)
> {
> Invoke(m_ChangeFontD, null);
> return;
> }
>
> bool wasProtected = false;
>
> string s = richTextBox1.SelectedText;
> int selectionStart = richTextBox1.SelectionStart;
> int selectionLength = richTextBox1.SelectionLength;
>
> FontDialog fd = new FontDialog();
> fd.ShowColor = true;
> fd.Color = richTextBox1.SelectionColor;
> Font font = richTextBox1.SelectionFont;
> fd.Font = font;
>
> if (fd.ShowDialog() == DialogResult.OK)
> {
> richTextBox1.Focus();
> //richTextBox1.SelectionStart = selectionStart;
> //richTextBox1.SelectionLength = selectionLength;
> richTextBox1.Select(selectionStart, selectionLength);
> //regain selection
> s = richTextBox1.SelectedText;
>
> if (richTextBox1.SelectionProtected)
> {
> wasProtected = true;
> richTextBox1.SelectionProtected = false; // so the font can change
> }
>
>
> richTextBox1.SelectionFont = fd.Font;
> richTextBox1.SelectionColor = fd.Color;
> richTextBox1.SelectionProtected = wasProtected;
>
> s = richTextBox1.SelectedText;
> System.Diagnostics.Debug.Print("SelectedText after font '" + s + "'");
> }
>
> richTextBox1.Select(0, 0);
> m_TextToInsert = "";
> }
>
> It works for both scenarios that I click the button1 and the button2.
> Button1 click event handle will not into the Invoke method, while button2
> click event handle does because it raise a new thread. Please let me know
> if there is any difference from your side. Then, I can try my best to do
> future research.
>
>
> Best regards,
> Ji Zhou (v-jzho@xxxxxx, remove 'online.')
> Microsoft Online Community Support
>
> Delighting our customers is our #1 priority. We welcome your comments and
> suggestions about how we can improve the support we provide to you. Please
> feel free to let my manager know what you think of the level of service
> provided. You can send feedback directly to my manager at:
> msdnmg@xxxxxx.
>
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