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Questionerror for parent form serialport object... Pin
IamHuM5-Nov-06 19:02
IamHuM5-Nov-06 19:02 
hi...

In my application...

I have declared a SerialPort object in parent form & i am accessing it from a child form but

its giving an error in port 'open' method. Can anybody tell me where i am going wrong...

Here is sample code for some more information...



//In parent form

public SerialPort comport = new SerialPort();

child_Form childForm= new child_Form();//this is the child form
child_Form .MdiParent = this;
comport.PortName = "COM1";


//In child form


if(!((ParentForm)this.MdiParent).comport.IsOpen)
((ParentForm)this.MdiParent).comport.Open(); // Getting error on this line

((ParentForm)this.MdiParent).comport.Write("send the text on serial Port");




I am getting intellisense for parent's 'comport' in child form.
above two sentence in child are write or wrong...? where i'm doing mistake...?

Thanks in adavance,
Vinay
AnswerRe: error for parent form serialport object... Pin
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