Question cannot update textbox text

[matsumoto]

I have a function called textupdate that updates text1.text value. when i call this function in Form1_Load, text1 is updated successfully. However, when i call this function in Private Shared Sub function2, no update is done. I am a newbie in vb.net programming and it may be a silly question but I could not solve it

Thanks

 

[jmcilhinney]

Why is 'function2' Shared?