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can child access parent without instancing?

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5017 Jun 14,2003 10:53 AM UTC Jun 30,2003 05:04 PM UTC WinForms 1
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Tags: FAQ
andreas
Asked On June 14, 2003 10:53 AM UTC

I have a main form which has several child forms. One of child forms is a form with help (helpForm). I am trying to add a code which would allow any child to open a form with helpForm when user presses F1. The problem is how to access a function in mainform from child without instancing, as when I instance a mainform in child form, then I ahve a problem with determining is helpForm open or not. Also is there a way of accessing a variable declared in main form from child forms without instancing main form?

grer
Replied On June 30, 2003 05:04 PM UTC

IS this an MDI application or and SDI? If mdi then you can access the parent with midparent property. and just cast it to the main form. If SDI, then you can use reflection ot call the main form using methodinvoke. > I have a main form which has several child forms. One of child forms is a form with help (helpForm). > I am trying to add a code which would allow any child to open a form with helpForm when user presses F1. > The problem is how to access a function in mainform from child without instancing, as when I instance a mainform in child form, then I ahve a problem with determining is helpForm open or not. > Also is there a way of accessing a variable declared in main form from child forms without instancing main form? >

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