Event for Selected Row in ListBox using MVVM in Windows Phone 7

for this

check Date is valid in the string type bounded textbox in Windows phone 7

try
{
System.Globalization.CultureInfo cul = CultureInfo.InVariantCulture;
datetime dt = DateTime.Parse("dfasdas",cul);
}
catch
{
MessageBox.Show("Invalid Date");
}

Windows Phone 7 :MouseLeftButtonClick Event Handled using MVVM

Click Here

Embedded Error Handling in ASP.net Projects

Click Here

Create TabControl Programmatically in Windows Phone 7

Click here : SampleTabControl.zip

Windows Phone 7 Design Guidelines – Cheat Sheet

Windows Phone 7 Design Guidelines – Cheat Sheet

Navigation Cancellation on LogOut button in Windows Phone 7

Click Here for Sample Code