protected virtual void OnKeyUp(KeyEventArgs e)
{
RadTextBoxControlElement textBox = this.TextBox;
if (textBox == null || !textBox.IsInValidState(true) || textBox.IsAutoCompleteDropDownOpen)
{
return;
}
int textLength = textBox.TextLength;
int selectionStart = textBox.SelectionStart;
int selectionLength = textBox.SelectionLength;
switch (e.KeyCode)
{
case Keys.Left:
if (selectionLength != 0 || (this.RightToLeft || selectionStart != 0) && (!this.RightToLeft || selectionStart != textLength))
{
break;
}
base.OnKeyDown(e);
break;
case Keys.Right:
if (selectionLength != 0 || (this.RightToLeft || selectionStart != textLength) && (!this.RightToLeft || selectionStart != 0))
{
break;
}
base.OnKeyDown(e);
break;
}
}
public override void OnKeyDown(KeyEventArgs e)
{
RadTextBoxControlElement textBox = this.TextBox;
if (textBox == null || !textBox.IsInValidState(true) || textBox.IsAutoCompleteDropDownOpen)
{
return;
}
int selectionStart = textBox.SelectionStart;
int selectionLength = textBox.SelectionLength;
bool flag1 = false;
bool flag2 = false;
TextPosition caretPosition = textBox.Navigator.CaretPosition;
if (caretPosition != (TextPosition)null)
{
LineInfoCollection lines = textBox.ViewElement.Lines;
flag1 = lines.FirstLine == caretPosition.Line;
flag2 = lines.LastLine == caretPosition.Line;
}
switch (e.KeyCode)
{
case Keys.Return:
if (e.Modifiers == Keys.Control)
{
break;
}
base.OnKeyDown(e);
break;
case Keys.Up:
if (this.Multiline && (selectionLength != 0 || !flag1))
{
break;
}
base.OnKeyDown(e);
break;
case Keys.Down:
if (this.Multiline && (selectionLength != 0 || !flag2))
{
break;
}
base.OnKeyDown(e);
break;
}
}