/// <summary>
/// 执行过滤操作
/// </summary>
private void FireFiltering()
{
if (this._curProgress == CLCProgress.KeyPressed)
{
//输入后异步触发事件
this.Dispatcher.BeginInvoke((Action) delegate
{
try
{
this._curProgress = CLCProgress.LazyFiltering;
// 绑定新的数据源
this._listView.Filter = item =>
{
string match = this.GetDisplay(item);
//在数据源中按输入的文字查找符合要求的项
var result = match.Contains(this.Text) ||
PinYinConverter.Convert(match).Contains(this.Text) ||
PinYinConverter.GetShortPY(match).Contains(this.Text);
return(result);
};
this.IsDropDownOpen = true;
}
finally
{
this._curProgress = CLCProgress.NotStarted;
}
}, DispatcherPriority.ApplicationIdle);
}
}
/// <summary>
/// 开始控件的 KeyPressed 流程。
/// （下一步：文本改变。）
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void StartFilterTimer()
{
this._curProgress = CLCProgress.KeyPressed;
//如果是用户开始输入，则开始计时。(ResetTimer)
this._lazyFilterInterval.Stop();
this._lazyFilterInterval.Start();
}