📜  GridViewColumn url wpf (1)

📅  最后修改于: 2023-12-03 14:41:39.057000             🧑  作者: Mango

GridViewColumn URL in WPF

GridViewColumn is a fundamental element in WPF (Windows Presentation Foundation) used to display tabular or grid-like data in a ListView or GridView control. In this introduction, we will focus on incorporating URLs into GridViewColumn in WPF.

Adding a Link to GridViewColumn

To display a URL as a hyperlink in a GridViewColumn, we can utilize a DataTemplate within the GridViewColumn that contains a Hyperlink element. Here's an example of how we can achieve this:

<ListView>
    <ListView.View>
        <GridView>
            <GridViewColumn Header="Website">
                <GridViewColumn.CellTemplate>
                    <DataTemplate>
                        <TextBlock>
                            <Hyperlink NavigateUri="{Binding Website}">
                                <TextBlock Text="{Binding Website}" />
                            </Hyperlink>
                        </TextBlock>
                    </DataTemplate>
                </GridViewColumn.CellTemplate>
            </GridViewColumn>
        </GridView>
    </ListView.View>
</ListView>

In the code snippet above, we create a GridViewColumn named "Website". Within the CellTemplate, we define a DataTemplate that contains a TextBlock with a Hyperlink element. The NavigateUri property of the Hyperlink is bound to the "Website" property in the data context. The TextBlock is used to display the URL, which is also bound to the "Website" property. This way, the URL will be displayed as a clickable hyperlink.

Handling Hyperlink Navigation

To handle navigation when the hyperlink is clicked, we can subscribe to the Hyperlink's RequestNavigate event. In the event handler, we can specify the desired behavior, such as opening the URL in a web browser. Here's an example of how we can achieve this:

private void Hyperlink_RequestNavigate(object sender, RequestNavigateEventArgs e)
{
    Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
    e.Handled = true;
}

In this code snippet, we use the Process.Start method to open the URL in the default web browser. By setting the e.Handled property to true, we indicate that the event has been handled and no further action is required.

To associate this event handler with the Hyperlink element, we can use the EventSetter within the XAML code:

<GridViewColumn.CellTemplate>
    <DataTemplate>
        <TextBlock>
            <Hyperlink NavigateUri="{Binding Website}">
                <TextBlock.Text>
                    <ContentPresenter Content="{Binding Website}" />
                </TextBlock.Text>
                <Hyperlink.RequestNavigate>
                    <EventSetter Event="Hyperlink.RequestNavigate" Handler="Hyperlink_RequestNavigate" />
                </Hyperlink.RequestNavigate>
            </Hyperlink>
        </TextBlock>
    </DataTemplate>
</GridViewColumn.CellTemplate>

With these changes, clicking on the hyperlink will open the associated URL in the default web browser.

Conclusion

GridViewColumn in WPF can be enhanced to display URLs as hyperlinks using a combination of DataTemplate, Hyperlink, and event handling. By incorporating these techniques, you can create more interactive and user-friendly grid-based views in your WPF applications.