SharpDevelop Community

Hi All!

 I'm trying to implement Find/Replace Functionality in by application that uses The SharpDevelop textEditor Control as it's main editor. I Have Found the following code For Find:

Dim StartPosition As Integer

If chkMatchCase.Checked = True Then

Else

End If

If StartPosition = 0 Then

Exit Sub

End If

Dim SearchType As CompareMethod

If chkMatchCase.Checked = True Then

Else

End If

If StartPosition = 0 Then

Exit Sub

End If

For text and text length use:   textEditor.ActiveTextAreaControl.TextArea.Document;

For selection use:  textEditor.ActiveTextAreaControl.TextArea.SelectionManager;

For cursor location use: textEditor.ActiveTextAreaControl.TextArea.Caret;

To move to a particular location use: textEditorControl.ActiveTextAreaControl.JumpTo

Hi and Thanks!

 You have been most helpful MattWard, however i am still struggling with the lines/colums attrinbute of the caret in the TextEditorControl, how would I go to a specifc character in the TextEditorControl as opposed to the lines/columns method which may not be entirely suitable for a find/replace option.

 The SelectionManager is also confusing me, do  I Need to put something in brackets after SelectionCollection, and if so, what?

Thanks Again!

 SmileyWolf

The Caret has an Offset property which you can use to move to a particular character position. The IDocument interface has two helper methods to convert between offsets and positions (PositionToOffset and OffsetToPosition) if you need them.

With the SelectionManager to get the current selection just do something like:

if (selectionManager.HasSomethingSelected) {

    ISelection selection = selectionManager.SelectionCollection[0];

}

Hi and Thanks!

 Thanks for the response! It's really helped me in the development of my application, however (Me Being New To C#) How would i change the position using offset, offset is marked as 'readonly'?

 Also I need to set the current selection as well as get it, how would I do this?

Thanks Again!

SmileyWolf

To change the position I would use JumpTo which will put the cursor where you want it and scroll the text editor. Alternatively you can modify the Caret's Position property but you need to convert the character position to a line/col position.

To change the current selection use the SelectionManager's SetSelection. Again you will have to convert the character position to a line/col position.

Hi and Thanks!

 Thanks for Your Help! Thanks to you I am really getting to grips with this control, my last problem, however, is how to use the Offset/Position conversion functions that you mentioned earlier, do i need to import a specific library?

 A small example would be greatly, greatly appreciated.

Thanks Again

SmileyWolf

The conversion methods belong to the TextEditorControl's Document object.

        /// <summary>
        /// returns the logical line/column position from an offset
        /// </summary>
        TextLocation OffsetToPosition(int offset);
       
        /// <summary>
        /// returns the offset from a logical line/column position
        /// </summary>
        int PositionToOffset(TextLocation p);