richtextbox

问题 Let's say I have 2 TextPointers. One pointing at the beginning of a word and the other at the end of the word. I would like to draw single pixel border around the word. How would I go about this? The border should be tied to the word and move with it when user types or scrolls.. I already tried TextDecorations with DrawingBrush but couldn't come up with anything usable. 回答1: I have done something similar, only underlining text in a TextBox. The principal seems to be mostly the same. Add an

问题 my question is as is:How to detect if a scrollbar is at or not at the end of a richtextbox? edit: when I say at the end I mean completely scrolled to the bottom, not anywhere else. 回答1: Check out the GetScrollRange and GetScrollPos API... Private Const SBS_HORZ = 0 Private Const SBS_VERT = 1 <DllImport("user32.dll")> _ Public Function GetScrollRange(ByVal hWnd As IntPtr, ByVal nBar As Integer, _ ByRef lpMinPos As Integer, _ ByRef lpMaxPos As Integer) As Boolean End Function <DllImport("user32

问题 In my RichtextBox , if I have written as below. This is my pen, his pen is beautiful. Now I search word "is" then output would be as below. All "is" should be highlighted. 回答1: What about: static class Utility { public static void HighlightText(this RichTextBox myRtb, string word, Color color) { if (word == string.Empty) return; int s_start = myRtb.SelectionStart, startIndex = 0, index; while((index = myRtb.Text.IndexOf(word, startIndex)) != -1) { myRtb.Select(index, word.Length); myRtb

问题 I have a variable, lets say it = 5, and then I would like the line number 5 to be highlighted "blue" in my RichTextBox1. is that possible at all? Or should I use something like a ListBox, DataGridView etc. 回答1: This will highlight the text in a given line in a RichTextBox if WordWrap is off: void highLightALine(RichTextBox rtb, int line, Color hiLight) { int i1 = rtb.GetFirstCharIndexFromLine(line); int i2 = rtb.GetFirstCharIndexFromLine(line + 1); if (i2 < 0) i2 = rtb.Text.Length; rtb

问题 In looking for a straightforward WYSIWYG editor for Markdown code, I am not finding a comparible UI to that of CkEditor, TinyMCE, ect. Specifically, the Markdown "WYSIWYG" editors that are often recommended (such as posts like this ) are not pure WYSIWYG editors in the sense that users either still write raw Markdown ( MarkItUp ) or go to the other extreme of having in-line editing without standard controls ( Hallo ). I need something in-between. I'm looking for a Markdown editor that looks

问题 i want a chat with inline images. The richtextbox good, because i can place images in it, but i want to send the text / images separate. -first: send the text (and place a image-placeholder in the text). -second: send the image and replace it with the placeholder. For that i need to remove all images in the richtextbox (and send them separate). But how can i find the images? And btw: Is it possible to rescale the image dependent on the width of the richtextbox? Thank you :) 回答1: To find all

问题 How Can I format text in Rich Text Box like the following 02/11/2010 - 05:15 PM - Adam: Another test notes added on 2nd November 02/11/2010 - 05:14 PM - Z_kas: Test Notes. STAGE CHANGED TO: N Enq - Send Quote 02/11/2010 - 05:12 PM - user32: Another test notes added on 2nd November Thanks 回答1: as stated by others there is a possible duplication with an earlier question. However, please see a code snippet below. You don’t have to get the length of the text you append in order to change its

问题 I need to set the font family for the next text to be written in a RichTextBox. I tried setting that with... <RichTextBox x:Name="RichTextEditor" MaxWidth="1000" SpellCheck.IsEnabled="True" FontFamily="{Binding ElementName=TextFontComboBox, Path=SelectedItem}" FontSize="{Binding ElementName=TextSizeComboBox, Path=SelectedValue}" Width="Auto" Height="Auto" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" /> ...but it changed the whole text. I suppose that with the

问题 I'm working on a program that calls python script and shows the output in richtextbox. I have a problem with coloring specific strings in output. For example: if the string "hey 123" will appear in the output it will colored red. Does someone have an answer? Thanks! snippet of my code: Process _cmd; delegate void setTextCallBack(string text); private void setText (string text) { if (this.richTextBox1.InvokeRequired) { setTextCallBack d = new setTextCallBack(setText); this.Invoke(d, new object

问题 I am using a RichTextBox in WPF, and am trying to set the default paragraph spacing to 0 (so that there is no paragraph spacing). While I could do this in XAML, I would like to achieve it programmatically if possible. Any ideas? 回答1: I did it with style (pun indented) <RichTextBox Margin="0,51,0,0" Name="mainTextBox" > <RichTextBox.Resources> <Style TargetType="{x:Type Paragraph}"> <Setter Property="Margin" Value="0"/> </Style> </RichTextBox.Resources> </RichTextBox> 回答2: Using Line Height