c# - Access form control from other form -

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• access class form 3 answers

i got following method in mdiparent1

public void disablebutton() {     toolstripbutton1.enabled = false; } 

in loginform okbutton click

mdiparent1 f1 = new mdiparent1(); f1.disablebutton(); this.close(); 

the loginform modal of mdiparent1.

problem disablebutton() don't works in loginform

you're creating new instance of mdiparent1 , not using actual instance opened loginform. pass parent loginform constructor.

private mdiparent1 _parentform = null; public loginform(mdiparent1 parentform) {    _parentform = parentform; }  //then in whichever event you're using _parentform.disablebutton(); this.close(); 

when want show loginform form, pass in mdiparent1 form.

//assuming in mdiparent1.cs (otherwise pass form instance variable) using(loginform lf = new loginform(this)) {    lf.show(); }