c# - WPF DataGrid SelectionChanged 和按钮单击

Question

我有一个数据网格，我绑定(bind)了一些项目。这个网格有一个 SelectionChanged 事件。我有一个带有 Click 事件的按钮。问题是当用户单击按钮时，数据网格的 selectionchanged 事件也会被触发。

private void dgLogins_SelectionChanged(object sender,SelectionChangedEventArgs e)
{
    UserLoginEO objUserLogin = (UserLoginEO)dgLogins.SelectedItem;
        txtCodeKarbar.Text = objUserLogin.CodeKarbar.ToString();
        txtName.Text = objUserLogin.Name;
        txtFamily.Text = objUserLogin.Family;
        txtUserName.Text = objUserLogin.UserName;

    e.Handled = true;   
}

XAML:

<DataGrid Margin="0,228,0,0"  Name="dgLogins" AutoGenerateColumns="False" IsSynchronizedWithCurrentItem="True" ItemsSource="{Binding Path=ObsUsers,  ValidatesOnDataErrors=True, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" SelectionChanged="dgLogins_SelectionChanged" >
    <DataGrid.Columns>
        <DataGridTextColumn Header="UserId">
            <DataGridTextColumn.Binding>
                <Binding  Path="CodeKarbar" Mode="TwoWay">
                </Binding>
            </DataGridTextColumn.Binding>
            </DataGridTextColumn>
        <DataGridTextColumn Header="Name">
            <DataGridTextColumn.Binding>
                <Binding  Path="Name" Mode="TwoWay">
                </Binding>
            </DataGridTextColumn.Binding>
        </DataGridTextColumn>
        <DataGridTextColumn Header="Familt">
            <DataGridTextColumn.Binding>
                <Binding  Path="Family" Mode="TwoWay">
                </Binding>
            </DataGridTextColumn.Binding>
        </DataGridTextColumn>
        <DataGridTextColumn Header="UserName">
            <DataGridTextColumn.Binding>
                <Binding  Path="UserName" Mode="TwoWay">
                </Binding>
            </DataGridTextColumn.Binding>
        </DataGridTextColumn>
    </DataGrid.Columns>
</DataGrid>

Answer 1

您可以检查 SelectionChangedEventArgs 的 OriginalSource 属性，因此您可以检查哪个控件引发的事件，如果它来自按钮而不是忽略。