Disabling a Button When a ListView Item Isn't Valid

Question

I have a ListView that has children with text boxes. These text boxes have validation rules attached to them. It it possible to create some kind of binding that will disable the button when one of the text boxes isn't valid?

Here's a quick example:

<Window x:Class="wpf.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
xmlns:validationRules="clr-namespace:ValidationRules" Title="MainWindow" Height="350" Width="525">
    <DockPanel>
        <ListView ItemsSource="{Binding ExampleCollection}">
            <ListView.View>
                <GridView AllowsColumnReorder="False">

                    <GridViewColumn Header="Example">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBox>
                                    <TextBox.Text>
                                        <Binding Path="Example" UpdateSourceTrigger="PropertyChanged">
                                            <Binding.ValidationRules>
                                                <validationRules:ByteValidationRule/>
                                            </Binding.ValidationRules>
                                        </Binding>
                                    </TextBox.Text>
                                </TextBox>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>
        <Button DockPanel.Dock="Bottom">Save</Button>
    </DockPanel>
</Window>

score 0 · Answer 1 · edited May 23 '17 at 12:03

0

Using WPF Validation rules and disabling a 'Save' button

edited May 23 '17 at 12:03

Community

1
1

answered Nov 29 '11 at 10:36

pchajer

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That looks promising, but I can't seem to figure out a way to bind to all of the TextBoxes in my ListView. Could you please provided a code example? – LandonSchropp Dec 01 '11 at 07:01

Disabling a Button When a ListView Item Isn't Valid

1 Answers1