How i change custom input in TextEdit Devexpress

Question

I have the TextEdit with properties max value = 6, the default value is "000000" and i will replace the value according to user input. For example when user input "69" in TextEdit, the final value TextEdit to be "000069". How i prepare that using c# ?

Please help me to prepare that...

Answer 1

Try this (add EditValueChanging event handler to your text edit):

    private void textEdit_EditValueChanging(object sender, DevExpress.XtraEditors.Controls.ChangingEventArgs e)
    {
        const int MaxLength = 6;
        var editor = (DevExpress.XtraEditors.TextEdit)sender;

        if (e.NewValue != null)
        {
            var s = (string)e.NewValue;
            s = s.TrimStart('0');

            if (string.IsNullOrWhiteSpace(s) == false)
            {
                BeginInvoke(new MethodInvoker(delegate
                {
                    editor.Text = s.Substring(0, Math.Min(s.Length, MaxLength)).PadLeft(MaxLength, '0');
                    editor.SelectionStart = MaxLength;
                }));
            }
        }
    }