Hyperlink keeps failing

问题

I am trying to create a hypelink which the user can click and navigate to a website.

The link is working but I am getting this exception which stops the application: Failed to convert resource into object.

The hyperlink will be a part og a datagrid. Here is what I have:

XAML:

...
<DataTemplate x:Key="hyperlinkTemplate">
    <TextBlock>
        <Hyperlink NavigateUri="{Binding Link}" RequestNavigate="dataLink_RequestNavigate">
            <TextBlock Text="{Binding TaskID}"></TextBlock>
        </Hyperlink>
    </TextBlock>
</DataTemplate>
...

<DataGrid Grid.Column="1" AutoGenerateColumns="False" ItemsSource="{Binding Tasks}" >
    <DataGrid.Columns>
        <DataGridTemplateColumn Header="Name width link" CellTemplate="{StaticResource     hyperlinkTemplate}"></DataGridTemplateColumn>
...

==================================================================

Code behind:

...
private void dataLink_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e)
{
    Process.Start(e.Uri.ToString());
    e.Handled = true;
}
...

==================================================================

Class data: Link

public string Link
    {
        get { return link; }
        set
        {
            link = value;
            Notify("Link");
        }
    }

==================================================================

Task class

[Serializable]
public class Task
{
    private XmlNode node;
    private string category = "";
    private int taskID = -1;
    private string taskName = "";
    private string taskResponsible = "";
    private string taskResponsibleDepartment = "";
    private int priority = 5;
    private string status = "Unknown";
    private string predecessorIndices = "None";
    private int indentLevel = 0;
    private int sortOrder = 0;
    private DateTime startDate = DateTime.Now;
    private TimeSpan estimatedHours = default(TimeSpan);
    private TimeSpan actualHours = default(TimeSpan);
    private DateTime estimatedDeploymentDate = default(DateTime);
    private DateTime desiredImplementationDate = default(DateTime);
    private string estimatedHoursRecovery = "";
    private string actualHoursRecovery = "";
    private string tags = "";
    private TimeSpan totalHoursActual = default(TimeSpan);
    private Department iN = new Department();
    private Department aPP = new Department();
    private Department sIS = new Department();
    private string link = "";
...

==================================================================

Do you have any suggestions?

BR

回答1:

Found out myself. I needed to add e.handled = true; to the datagrid_RequestNavigate. Just updated the code examples too.

It is all working now

来源：https://stackoverflow.com/questions/7888871/hyperlink-keeps-failing