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Requred field Validation in WPF+MVVM

Posted By: Rahman     Posted Date: November 24, 2010    Points:2   Category :WPF
I have a Xaml Page.
Where I have One TextBox Control,One ComboBox control,And One Save
button.Text Box and the combo box control is the Mandatory field.
So these fields are empty the Save button should be disable.If u put any thing in TextBox and the combobox then only the Mandatory field symbol goes off and the button become enable.
Here I am using MVVM pattern....

Please help me ...
I am waiting for reply

Author: sravani             
Posted Date: November 24, 2010     Points: 5   

you can create a boolean property in your view model; in your xaml, bind the save button's IsEnabled event to that property of view model; and in your required field validation logic keep changing boolean property so as to when
to disable and enable the save button depending on your validation

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