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GetCaretIndexFromPoint on SqlTextEditor

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Manuel Fessler
  • updated
  • Completed

Hello,


is there any workaround to use GetCharIndexFromPosition and  GetPositionFromCharIndex (WinForms Textbox has them) with the SqlTextEditor. I want to move the Caret while Dragging Something Over the SqlTextEditor:


private int GetCaretIndexFromPoint(TextBox box, int x, int y)

        {

            Point realPoint = box.PointToClient(new Point(x, y));

            int index = box.GetCharIndexFromPosition(realPoint);

            if (index == box.Text.Length - 1)

            {

                Point caretPoint = box.GetPositionFromCharIndex(index);

                if (realPoint.X > caretPoint.X)

                {

                    index += 1;

                }

            }

            return index;

        }


If i change the Parameter from TextBox to ActiveDatabaseSoftware.ExpressionEditor.SqlTextEditor the GetCharIndexFromPosition and GetPositionFromCharIndex are not implemented :(


Any Ideas?


best Regards

Manuel

Replies 2
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0
Anonymous

You should handle the PreProcessDragOver and PreProcessDragDrop events of SqlTextEditor. Code sample is provided in the comment.

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0
Anonymous

You should handle the PreProcessDragOver and PreProcessDragDrop events of SqlTextEditor:


private void sqlTextEditor_PreProcessDragOver(object source, DragEventArgs eventArgs, ref bool handled)
{
    if (eventArgs.Data.GetDataPresent(typeof(TreeNode)))
    {
        handled = true;
        eventArgs.Effect = DragDropEffects.Copy;

        // move the caret
        int offset = sqlTextEditor.GetOffsetFromPoint(new Point(eventArgs.X, eventArgs.Y));
        sqlTextEditor.SetSelection(offset, 0);
    }
}

private void sqlTextEditor_PreProcessDragDrop(object source, DragEventArgs eventArgs, ref bool handled)
{
    if (eventArgs.Data.GetDataPresent(typeof(TreeNode)))
    {
        handled = true;

        sqlTextEditor.Focus();
        sqlTextEditor.ReplaceSelection(((TreeNode) eventArgs.Data.GetData(typeof(TreeNode))).Text);
    }
}