Question

Hi I have a textbox with a text that is initially populated to a value through Data Binding.

    <TextBox Name="EmployeeName" Text="{Binding Employee.Name}" Grid.Row="0" Grid.Column="1"  VerticalAlignment="Center" Margin="8,0,0,0"/>

And I have a refresh button that should reset it back to its original value and a Save button that should save the changes.

    <Button Name="RefreshEmployeeName" Content="Refresh" Grid.Column="2" Grid.Row="0" Width="50" Height="25" Command="{Binding RefreshEmployeeNameCommand}" CommandParameter="{Binding Text, ElementName=EmployeeName}"/>

    <Button Name="SaveEmployeeName" Content="Refresh" Grid.Column="2" Grid.Row="0" Width="50" Height="25" Command="{Binding SaveEmployeeNameCommand}" CommandParameter="{Binding Text, ElementName=EmployeeName}"/>

I am using MVVM lightand in my View Model I have created 2 RelayCommands

    SaveEmployeeNameCommand = new RelayCommand(SaveEmployee);

    RefreshEmployeeNameCommand = new RelayCommand(RefreshEmployee);

    private void SaveEmployee()
    {

// how to get the value from the text box (Command Parameter) here
}

Answer 1

I don’t think you need to pass the name as a CommandParameter. As long as the employee’s Name property has a public setter and you use a two-way binding on the text box, you can get the employee’s name using this.Employee.Name.