Change paste contents in Textbox

Question

How can I dynamically change the contents of what will be pasted in the TextBox.

Here is how I subscribe to the event:

DataObject.AddPastingHandler (         


        

Answer 1

You cannot call args.DataObject.SetData("some data") since the DataObject is frozen. What you can do is replace the DataObject altogether:

private void TextBoxPaste(object sender, DataObjectPastingEventArgs e) {
        string text = (String)e.DataObject.GetData(typeof(String));
        DataObject d = new DataObject();
        d.SetData(DataFormats.Text, text.Replace(Environment.NewLine, " "));
        e.DataObject = d;
 }