c# - error: 'object' no definition/extension method -

c# - error: 'object' no definition/extension method -

using code (shown below) have got error this:

'object' not contain definition 'rendertransform' , no extension method 'rendertransform' accepting first argument of type 'object' found (are missing using directive or assembly language

i have no thought why showing error according examples (of this) should work. code:

public void rotate(object sender, int rotationamount, int centerx, int centery) { rotatetransform rotate = new rotatetransform(rotationamount); rotatetransform.centerx = centerx; rotatetransform.centery = centery; sender.rendertransform = rotatetransform; }

you have cast sender (which declared object) appropriate type:

uielement element = sender uielement; if (element != null) element.rendertransform = rotatetransform;

c# wpf