Question

我想调用onClick事件并从.xaml代码将Textbox对象传输到eventhandler。那可能吗？

我会试着说明一下，

这是我的Main.xaml.cs代码：

<Button x:Name="VideoTargetBtn" Content="Browse..." HorizontalAlignment="Left" VerticalAlignment="Top" Width="89"  Click="VideoTargetBtn_Click" Height="27" Margin="10,13,0,0"/>
<TextBox x:Name="videoTargetPathTxt" Height="27" TextWrapping="Wrap" VerticalAlignment="Top" IsReadOnly="True"  Margin="117,13,21,0"/>

这就是我想要做的事情：

private void VideoTargetBtn_Click(object sender, RoutedEventArgs e, TextBox currTextbox)
{
    SaveFileDialog saveFileDialog = new SaveFileDialog();
    bool? fileIsSelected = saveFileDialog.ShowDialog();
    if (fileIsSelected == true)
    {
        currTextbox.Text = saveFileDialog.FileName;
    }
}

Answer 1

如果您只需要从代码中访问控件，则可以按名称引用它，因为您在控件上使用值为videoTargetPathTxt的x：Name属性。

保持事件处理程序正常，并用

替换代码

if (fileIsSelected == true)
{
    videoTargetPathTxt.Text = saveFileDialog.FileName;
}

Answer 2

不，它不是，你不需要，

私有VideoTargetBtn_Click处理程序中的

只检索文本框内容

videoTargetPathTxt.Text


private void VideoTargetBtn_Click(object sender, RoutedEventArgs e)
{
    SaveFileDialog saveFileDialog = new SaveFileDialog();

    bool? fileIsSelected = saveFileDialog.ShowDialog();

    if (fileIsSelected == true)
    {
        videoTargetPathTxt.Text = saveFileDialog.FileName;
    }
}

来自xaml的参数控制类型的C＃Eventhandler

2 个答案: