i have class created for data retrieval
I have XAML code with gridview and cs code which connects to SQL webservice and i can get data from SQL :-)
my gridview has
textblock - data from sql table
checkbox
textbox
I would like to have some actions on the checkbox and textboxes. How do I get my textboxes to become visible upon checkbox click?
I have got this code working in other apps without gridviews, but I can't get it to work here. how do I reference the event_handler inside the gridview
XAML example
<GridView x:Name="GreenQuestionGridView" ItemsSource="{Binding}" Background="Green" Margin="0,40,0,0">
<GridView.ItemTemplate>
<DataTemplate>
<Grid Height="40" Width="600" >
<StackPanel Orientation="Horizontal">
<TextBlock Width="200" VerticalAlignment="Bottom" TextWrapping="Wrap" Text="{Binding question_green}" />
<CheckBox x:Name="chkBox" Checked="chkBox_Checked" Unchecked="chkBox_Unchecked" Indeterminate="chkBox_Indeterminate" VerticalAlignment="Bottom" IsThreeState="True" />
<TextBox x:Name="txtBox" Visibility="Collapsed" Width="200" VerticalAlignment="Bottom" />
</StackPanel>
</Grid>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
here is code that works in other app, but this needs to reference the gridview
private void chkBox_Checked(object sender, RoutedEventArgs e)
{
if (chkbox.IsChecked == null)
{
txtbox.Visibility = Visibility.Visible;
}
else
{
txtbox.Visibility = Visibility.Collapsed;
}
}
For the CheckBox you need also the event CheckBox_Unchecked to hide it again.
<CheckBox Unchecked="CheckBox_Unchecked" Checked="CheckBox_Checked" ... />
IsChecked is a nullable type you didnt even checked if it's true. Your code will hide the txtbox so long as the IsChecked is not null.
private static void ToggleTextBoxVisibility(object sender) {
if(!(sender is CheckBox)) {
return;
}
CheckBox checkBox = sender as CheckBox;
foreach(var child in ((checkBox.Parent as StackPanel).Children)) {
if(!(child is TextBox)) {
continue;
}
TextBox textBox = child as TextBox;
if(checkBox.IsChecked.HasValue && checkBox.IsChecked.Value) {
textBox.Visibility = Visibility.Visible;
} else {
textBox.Visibility = Visibility.Collapsed;
}
}
}
private void CheckBox_Checked(object sender, RoutedEventArgs e) {
ToggleTextBoxVisibility(sender);
}
private void CheckBox_Unchecked(object sender, RoutedEventArgs e) {
ToggleTextBoxVisibility(sender);
}
A clean solution would be to control it with a binding to a property in your viewmodel.
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