Category: Windows Phone

This section of the website contains posts about the mobile operating system Microsoft Windows Phone

Categories
7.0 7.5 7.8 8.0 HOW TO Microsoft SDK 7.1 SDK 7.8 VB.NET Visual Studio Windows Phone

HOW TO create a bulleted list in Microsoft Windows Phone App

To create a bulleted list in Microsoft Windows Phone App you have the following options:

  1. Write text inside your xaml file using and elements
    [sourcecode lang=”xml”]
    <TextBlock TextWrapping="Wrap">
    New features:<LineBreak/>
    <Run>• No Ads</Run><LineBreak/>
    <Run>• Message Encryption with Password for a double protection</Run><LineBreak/>
    <Run>• Advanced settings</Run><LineBreak/>
    <Run>• and more…</Run><LineBreak/>
    </TextBlock>
    [/sourcecode]
  2. Write text inside you Resouces file (use SHIFT+RETURN to create new line)
    [sourcecode lang=”text”]
    New features:
    • No Ads
    • Message Encryption with Password for a double protection
    • Advanced settings
    • and more…
    [/sourcecode]
  3. Create a bulleted or numbered list in Blend

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Categories
7.0 7.5 C#.NET Microsoft VB.NET Windows Phone

Windows Phone – “Navigation is not allowed when the task is not in the foreground. Error: -2147220990”

When you debug your Windows Phone application that use a task and call the Show method your app crash with the following error message:

System.InvalidOperationException:
Navigation is not allowed when the task is not in the foreground. Error: -2147220990

Solution:

Add Show method in try/catch block

For example:

[sourcecode lang=”CSharp”]
private void appBarButton_Click(object sender, EventArgs e)
{
WebBrowserTask task = new WebBrowserTask();
task.Uri = new Uri("https://www.myerrorsandmysolutions.com/");
try
{
task.Show();
}
catch
{ }
}
[/sourcecode]

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