richtextbox control

Amespacewindowsformsapplication1{ Public Partial classForm1:form { PublicForm1 () {InitializeComponent (); Richtextbox1.allowdrop=true; Richtextbox1.dragenter+=NewDragEventHandler (Richtextbox1_dragenter); Richtextbox1.dragdrop+=NewDragEventHandler (Richtextbox1_dragdrop); } Private voidRichtextbox1_dragenter (Objectsender, DragEventArgs e) { if(E.data.getdatapresent (DataFormats.FileDrop)) {e.effect=Dragdropeffects.link; } Else{e.effect=DragDropEffects.None; }

In the online did not find the right code, wrote a paragraph, still needs to be optimized ...Directly on the code/// ///Scroll to an item/// /// Private voidScrollitem (Block sparent) {intCount = RichTextBox1.Document.ContentStart.GetOffsetToPosition (richTextBox1.Document.ContentEnd);//get the height of the text in the entire textbox intS1 = richTextBox1.Document.ContentStart.GetOffsetToPosition (sparent. Contentend);//The height of the entry block to the begi

Public Sub HighLight () Sub HighLight (RTB As RichTextBox, lColor As Long) 'Add new color to color table 'Add tags \ highlight # and \ highlight0 'Where # is new color number Dim iPos As Long Dim strRTF As String Dim bkColor As Integer With RTB IPos =. SelStart 'Bracket selection . SelText = Chr ( H9D) . SelText Chr ( H81) StrRTF = RTB. TextRTF 'Add new color BkColor = AddColorToTable (strRTF, lColor) 'Add highlighting StrRTF = Replace (strRTF, "\ '

Add two controls: Panel/RichTextBox View sourceprint? 01 // Method 02 03 private void showLineNo () 04 05 { 06 07 // obtain the current coordinate information 08 09 Point p = this. richTextBox1.Location; 10 int crntFirstIndex = this. richTextBox1.GetCharIndexFromPosition (p ); 11 12 int crntFirstLine = this. richTextBox1.GetLineFromCharIndex (crntFirstIndex ); 13 14 Point crntFirstPos = this. richTextBox1.GetPositionFromCharIndex (crntFirstIndex ); 1

Using system;using system.collections.generic;using system.drawing;using system.windows.forms;using System.IO; namespace test{///Example of using RichTextBox in C # to achieve picture-and-text blending and preservation

RichTextBox file format is incorrect:Reason: Rich text box LoadFile method only supports RTF file or standard ASCII text This document, our general text document is ANSI or UTF-8 format, so, reported this error.Workaround: Use Notepad to edit the text, and then save the file as a rich Text format. Then double-click Open RTF file to enter the RTF edit page. Then save as RTF file, note that the encoding format must be Rich Text format.Graphic:1. (Becaus

private static void Initrichtextboxcontextmenu (RichTextBox textBox){Create a cut sub-menuvar cutmenuitem = new System.Windows.Forms.MenuItem ("cut");Cutmenuitem.click + = (sender, EventArgs) = Textbox.cut ();Create a Copy submenuvar copymenuitem = new System.Windows.Forms.MenuItem ("copy");Copymenuitem.click + = (sender, EventArgs) = Textbox.copy ();Create a Paste sub-menuvar pastemenuitem = new System.Windows.Forms.MenuItem ("paste");Pastemenuitem.c

Public Sub SetSubScript () Sub SetSubScript (RTB As RichTextBox) Dim iPos As Long Dim strRTF As String With RTB If. SelCharOffset> = 0 Then 'Subscript the current selection IPos =. SelStart . SelText = Chr ( H9D) . SelText Chr ( H81) StrRTF = Replace (. TextRTF, "\ '9d", "\ sub \ dn2 ") . TextRTF = Replace (strRTF, "\ '81", "\ nosupersub \ up0 ") . SelStart = iPos Else 'Turn off subscripting . SelText = Chr ( H9D) . SelText StrRTF =. TextRTF . TextRT

Winform adds images to RichTextBox (code implementation ), // Set filter conditions in the dialog boxOfdSelectPic. filter = "png file (*. png) | *. png | jpg file (*. jpg) | *. jpg | all files (*. *) | *. *";OfdSelectPic. Title = "open image ";OfdSelectPic. FilterIndex = 2;If (ofdSelectPic. ShowDialog () = DialogResult. OK){Try{Bitmap bmp = new Bitmap (ofdSelectPic. FileName); // obtain the imageClipboard. SetDataObject (bmp, false); // place the ima

Display image: Copy codeThe Code is as follows:Image img = Image. FromFile (@ "E: \ image \ bottle \ 2006122013203825344.jpg ");Clipboard. SetDataObject (img );RichTextBox. Paste (DataFormats. GetFormat (DataFormats. Bitmap ));Show wordString filename = @ "d: \ subf.doc ";// C # reading word file instantiation COMMicrosoft. Office. Interop. Word. ApplicationClass wordApp = new Microsoft. Office. Interop. Word. ApplicationClass ();Object fileobj = file