How to set Control Template in code?

Question

I have this in XAML

I want to achieve

Answer 1

If you need to change the button image only then you can do one thing.

1. Create a dependency property which will represent when you want to change the image (a bool) or may be you can create an enum which has all possible images say
2. Enum Images { Image1 = 0, Image2 = 1, Image2 = 3}. Create a dependency property "CurrentButtonImage" of this type which will be associated with button.

Now in XAML use this in button template

On property Change of CurrentButtonImage update the image of button (in code behind) using

CurrentImagePropertyChangedhandler(....,...)  
{  
    switch(CurrentButtonImage)  
    {  
        case "Image1" :  
          this._ButtonImage.Fill = (DrawingBrush)csd.FindResource("Image1DrawingBrush");
          break;
    }
}