private void OnWidthChanged(DependencyPropertyChangedEventArgs e)
{
var value = (double)e.NewValue;
this.State = double.IsNaN(value) ? ColumnMeasureState.Init : ColumnMeasureState.SpecificWidth;
this.OnPropertyChanged(WidthProperty.Name);
}
/// <summary>
/// 重置所有字段到起始状态。
/// </summary>
internal void ResetPrivateData()
{
this.StableIndex = -1;
this._desiredDataWidth = 0.0;
this._state = double.IsNaN(this.Width) ? ColumnMeasureState.Init : ColumnMeasureState.SpecificWidth;
}
