richtextbox

问题 After binding object to Richtextbox using bindingsource, if i type anything inside the textbox cursor will move to beginning. Can someone please help me. I am binding as below this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", false, DataSourceUpdateMode.OnPropertyChanged); 回答1: Try changing the DataSourceUpdateMode to OnValidation: this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", false, DataSourceUpdateMode.OnValidation); If you want to keep the

问题 After binding object to Richtextbox using bindingsource, if i type anything inside the textbox cursor will move to beginning. Can someone please help me. I am binding as below this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", false, DataSourceUpdateMode.OnPropertyChanged); 回答1: Try changing the DataSourceUpdateMode to OnValidation: this.txtDescription.DataBindings.Add("Text", bindingWard, "Description", false, DataSourceUpdateMode.OnValidation); If you want to keep the

问题 i want to add formatted text and table to a richTextBox. For this I use these codes: Text: richTextBox1.SelectionFont = new Font("Maiandra GD", 30, FontStyle.Bold); richTextBox1.SelectionColor = Color.Red; richTextBox1.SelectionIndent = 0; richTextBox1.AppendText("text text text"); And the table: StringBuilder tableRtf = new StringBuilder(); tableRtf.Append(@"{\rtf1\fbidis\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fnil\fcharset0 Microsoft Sans Serif;}}"); for (int j = 0; j <5; j++) {

问题 I have a flowdocument like this: var mcFlowDoc = new FlowDocument(); var para = new Paragraph(); para.Inlines.Add(textBlock1); para.Inlines.Add(textBlock2); para.Inlines.Add(textBlock3); mcFlowDoc.Blocks.Add(para); richTextBox1.Document = mcFlowDoc; and I need an event to trigger on mouse click on a textblock: <RichTextBox Margin="10,10,230,12" Name="richTextBox1" FontFamily="Simplified Arabic" FontSize="16" IsReadOnly="True" IsReadOnlyCaretVisible="False" ForceCursor="False" FlowDirection=

问题 I am switching several TextBoxes out for RichTextBoxes to gain some of the cool features. I had my TextBoxes configured to AcceptReturn so that the enter key will create a new line, rather than leave the control. The RichTextBox does not seem to have this feature. Is there a simple way to do this, or do I have to capture all keypresses and handle them individually? 回答1: Note: This issue occurs only when you set the "AcceptButton" property of the form. Set the RichTextBox.AcceptsTab to true.

问题 Is there anyway to prevent the cursor (IBeam) of a read-only RichRextBox from blinking whenever the textbox got focus? I've tried to block the WM_SETFOCUS message from the WndProc but it causes the form to hang. if( m.Msg == 0x0007 ) return; 回答1: You'll need to use Win32 APIs. Here's what you could do in VB: 'API declares Private Declare Function HideCaret Lib "user32" _ (ByVal hwnd As IntPtr) As Integer Private Declare Function ShowCaret Lib "user32" _ (ByVal hwnd As IntPtr) As Integer 'hide

问题 Is there anyway to prevent the cursor (IBeam) of a read-only RichRextBox from blinking whenever the textbox got focus? I've tried to block the WM_SETFOCUS message from the WndProc but it causes the form to hang. if( m.Msg == 0x0007 ) return; 回答1: You'll need to use Win32 APIs. Here's what you could do in VB: 'API declares Private Declare Function HideCaret Lib "user32" _ (ByVal hwnd As IntPtr) As Integer Private Declare Function ShowCaret Lib "user32" _ (ByVal hwnd As IntPtr) As Integer 'hide

问题 For my C# RichTextBox, I want to programmatically do the same thing as clicking the up arrow at the top of a vertical scroll bar, which moves the RichTextBox display up by one line. What is the code for this? Thanks! 回答1: Here's what I do: using System.Runtime.InteropServices; [DllImport("user32.dll")] static extern int SendMessage(IntPtr hWnd, uint wMsg, UIntPtr wParam, IntPtr lParam); then call: SendMessage(myRichTextBox.Handle, (uint)0x00B6, (UIntPtr)0, (IntPtr)(-1)); Seems to work OK -

问题 How to get displayed text in RichTextBox? I mean if RichTextBox is scrolled to the end, I'd like to receive only those lines, which are visible for me. P.S.It'll be enough to get fisrt displayed string 回答1: You should use RichTextBox.GetCharIndexFromPosition( point ) . To get the index of the first visible character, pass new Point(0, 0) (the upper left corner of the RTB client area) as the point parameter. To get the index of the last visible character, pass new Point(rtb.ClientSize.Width,

问题 I may be completely imagining this, but I could have sworn there was a way to make individual Run (or Parapgraph) elements in a RichTextBox read-only. I also could have sworn I tried a method for doing this out myself a few weeks ago and was satisfied with the results - I vaguely remember it looked something like this: <RichTextBox x:Name="richTextBox" AcceptsTab="True" AcceptsReturn="True" FontFamily="Courier New" FontSize="14"> <FlowDocument> <Paragraph> <Run IsReadOnly="True">I wish this