private void txtComponentValue_KeyDown(object sender, KeyEventArgs e)
{
if ( txtComponentValue.Text.Length > 0 &&
( ( e.KeyData | Keys.Shift ) == ( Keys.Up | Keys.Shift ) ||
( e.KeyData | Keys.Shift ) == ( Keys.Down | Keys.Shift ) ) ) {
int componentValue = Int16.Parse( txtComponentValue.Text );
int incrementValue = 0;
if ( ( e.KeyData & Keys.Shift ) == Keys.Shift ) {
incrementValue = 0x00000A;
} else {
incrementValue = 0x000001;
}
if ( ( e.KeyData & Keys.Up ) == Keys.Up ) {
if ( componentValue + incrementValue <= this.MaximumValue ) {
componentValue += incrementValue;
} else {
componentValue = this.MaximumValue;
}
} else if ( ( e.KeyData | Keys.Shift ) == ( Keys.Down | Keys.Shift ) ) {
if ( e.KeyData == ( Keys.Down | Keys.Shift ) ) {
incrementValue = -10;
} else {
incrementValue = -1;
}
if ( componentValue + incrementValue > this.MinimumValue ) {
componentValue += incrementValue;
} else {
componentValue = this.MinimumValue;
}
}
txtComponentValue.Text = componentValue.ToString();
ComponentTextKeyUp( this, EventArgs.Empty );
// this is a hack to fix some of the problems with the key
// combination selecting part of the text (only happens
// with shift+down).
//
// TODO: see if there is a better way to do this.
if ( e.KeyData == ( Keys.Shift | Keys.Down ) ) {
txtComponentValue.SelectionStart = txtComponentValue.Text.Length;
}
}
}
