以编程方式将焦点设置为 WPF 选项卡项

本文关键字：WPF 选项 设置 编程 方式 焦点 | 更新日期: 2023-09-27 18:30:52

我是wpf的新手。我正在开发一个新应用程序。在我的应用程序中，我使用选项卡控件。使用两个选项卡项。在一个选项卡项中，数据网格用于显示。在单击数据网格行时，我想将焦点设置为下一个选项卡项。

在Row_DoubleClick上，代码如下...

 if (dgMain.SelectedItem == null)
                return;
 cardType = ((Entity.CardType)dgMain.SelectedItem);
 txtCardType.Text = cardType.card_type_desc;
 tabMain.SelectedItem = tbiConfig;

此代码不起作用。焦点未移动到另一个选项卡。

伙计们，你能帮我吗？

------ XAML 如下所示

<Grid>
    <Label Content="Card Type" Height="35" HorizontalAlignment="Left" Margin="17,12,0,0" Name="lblHeader" VerticalAlignment="Top" FontSize="18" Width="193" />
    <TabControl Height="235" HorizontalAlignment="Left" Margin="12,53,0,0" Name="tabMain" VerticalAlignment="Top" Width="576">
        <TabItem Header="Configure" Name="tbiConfig">
            <Grid>
                <Button Content="Save" Height="23" HorizontalAlignment="Left" Margin="450,137,0,0" Name="btnSave" VerticalAlignment="Top" Width="75" Click="btnSave_Click" />
                <Label Content="CardType" Height="28" HorizontalAlignment="Left" Margin="14,34,0,0" Name="lblCardType" VerticalAlignment="Top" />
                <TextBox Height="23" HorizontalAlignment="Left" Margin="130,36,0,0" Name="txtCardType" VerticalAlignment="Top" Width="395" />
            </Grid>
        </TabItem>
        <TabItem Header="Search" Name="tbiSearch">
            <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                <Label Content="CardType" Height="28" HorizontalAlignment="Left" Margin="10,10,0,0" Name="lblSearchCardType" VerticalAlignment="Top" />
                <TextBox Height="23" HorizontalAlignment="Left" Margin="126,12,0,0" Name="txtSearchCardType" VerticalAlignment="Top" Width="333" />
                <Button Content="Search" Height="23" HorizontalAlignment="Left" Margin="473,12,0,0" Name="btnSearch" VerticalAlignment="Top" Width="75" Click="btnSearch_Click" />
                <DataGrid AutoGenerateColumns="false" Height="148" HorizontalAlignment="Left" Margin="15,49,0,6" Name="dgMain" VerticalAlignment="Center" Width="533" ItemsSource="{Binding}" CanUserAddRows="True" GridLinesVisibility="All" HorizontalGridLinesBrush="LightGray" IsEnabled="True" IsReadOnly="True" RowHeight="23" HorizontalContentAlignment="Left"  VerticalGridLinesBrush="LightGray" VerticalContentAlignment="Center" MouseDoubleClick="dgMain_MouseDoubleClick">
                    <DataGrid.ItemContainerStyle>
                        <Style TargetType="DataGridRow">
                            <EventSetter Event="MouseDoubleClick" Handler="Row_DoubleClick"/>
                        </Style>
                    </DataGrid.ItemContainerStyle>
                    <DataGrid.Columns  >
                        <DataGridTextColumn Header="ID" Binding="{Binding Path=card_type_id}" Width="100" />
                        <DataGridTextColumn Header="Description" Binding="{Binding Path=card_type_desc}" Width="400"  />
                    </DataGrid.Columns>
                </DataGrid>
            </Grid>
        </TabItem>
    </TabControl>
</Grid>

以编程方式将焦点设置为 WPF 选项卡项

我意识到这很旧，也许.Focus（） 在 2013 年不可用，但现在您可以使用：

tbiConfig.Focus()

尝试：

int tbiConfig = 1;
tabMain.SelectedIndex = tbiConfig;

最好在foreach循环中使用选定项

foreach(TabItem tbiConfig in tabMain)
{
    tabMain.SelectedItem = tbiConfig;
}
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