Changing values of another form from a separate form (solution not working)

Question

peoples. Today I\'m attempting to change the background image of a panel from a separate form. I\'ve looked at a few S.O. questions and they have all said to create a new form

Answer 1

You have to change the variable in the specific instance of the form that you want to change. I would recommend adding the form as a parameter of your method or convert your static method to an extension method.

Parameter:

public static void changeGridSize(Form_Main frm, int newSize)
{
    switch (newSize) 

Extension Method:

public static void changeGridSize(this Form_Main frm, int newSize)
{
    switch (newSize)

Usage of the extension method would be from the calling form:

myFormMain.changeGridSize(newSize);