Close Child Form

[Tyler45]

how can i close child form? debugger gives this error : An unhandled exception of type 'System.NullReferenceException' occurred in market.exe Additional information: Object reference not set to an instance of an object. and i use it this line for closing: this.ActiveMdiChild.Close(); pleae help me Thanks

[Colin Angus Mackay]

And what does the call stack show? Where is this null reference occurring? What is null that wasn't expected to be null? You need to find that point, then set a break point in the debugger just before that happens to see why you are getting a null.

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[da vinci coder]

lets say the form name which has MdiChild u want to close is market: market.ActiveForm.ActiveMdiChild.Close(); i`m not sure if it works maybe u can give more detailts about the code

[Tyler45]

thanks for your help but i thought wrong simply it closes like a other form e.g. this.close(); or just close(); thanks again