#905 – Executing Some Code when a User Changes Tabs on a TabControl

You can execute some code whenever a user changes tabs on a TabControl by handling the TabControl’s SelectionChanged event.  Below we have a TabControl and we define a handler for its SelectionChanged event.

    <Grid Margin="10">
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <TabControl SelectionChanged="TabControl_SelectionChanged">
            <TabItem Header="Breakfast">
                <StackPanel>
                    <RadioButton Content="Eggs"/>
                    <RadioButton Content="Cereal"/>
                    <RadioButton Content="Spam"/>
                </StackPanel>
            </TabItem>
            <TabItem Header="Lunch">
                <StackPanel>
                    <RadioButton Content="Ham Sandwich"/>
                    <RadioButton Content="Soup"/>
                    <RadioButton Content="Wimpy Burger"/>
                </StackPanel>
            </TabItem>
        </TabControl>
        <TextBlock Grid.Row="1" Name="txtMessage" Margin="0,5,0,0"/>
    </Grid>

In our event handler, we simply change a text message, based on the tab that’s currently selected.

private void TabControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    if ((sender as TabControl).SelectedIndex == 0)
        txtMessage.Text = "Start the day with a good breakfast";
    else
        txtMessage.Text = "Have something healthy for lunch";
}

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

One Response to #905 – Executing Some Code when a User Changes Tabs on a TabControl

  1. Pingback: Dew Drop – September 13, 2013 (#1,623) | Morning Dew

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