Passing values from a parent web control to child web control

I have a parent control which called CONTROL1 and a child control witch called CONTROL2 I would link to pass a value from the parent control to the child control. In the parent control(CONTROL1) I have the following Event Handler .

private void btn_Handler(object sender, EventArgs e) {

     if (Page.IsPostBack) {

             // Send the officer names to the child controls.

            if(m_nameList.SelectedItem.Text != "")


                        CONTROL2 .OfficerID = Int32.Parse(m_nameList.SelectedItem.Value);



But it does not pass the value to the child control and OfficerID return zero.

Am I missing something???


9/19/2005 6:28:20 PM 93655 articles. 6 followers. Follow

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In control2 add a property (In VB):

public property officer as int32
      return officerID
   end get
   set (byVal Value as int32)
      officerID = value
   end set
end property

Then in control1:

   control2.officer = m_nameList.SelectedItem.Value


PS - Make sure you check your order of execution. Depending on where you are checking for the value of officerID sould be where you are having an issue.
9/19/2005 7:18:35 PM

Thanks for your fast reply and I appreciate it. Actually I have OfficerID property in my child control (CONTROL2) as follow (In c#)

            public int OfficerID


                  get {

                        return m_OfficerID;


                  set {

                        m_OfficerID = value;



Also in my parent control (CONTROL1) I have

CONTROL2 .OfficerID = Int32.Parse(m_nameList.SelectedItem.Value);

Which is what exactly what you mention. Right? I should missing something else!


9/20/2005 3:00:41 AM
Thats correct. Where are you calling CONTROL2 .OfficerID = Int32.Parse(m_nameList.SelectedItem.Value); from (i believe you said it was on button click?)? And then where are you using this ID (page load, button click, etc)?

9/20/2005 1:23:43 PM

You are right. I am calling my CONTROL2 .OfficerID = Int32.Parse(m_nameList.SelectedItem.Value) from a button click handler   and I am using OficerID in the second control’s constructor.

9/20/2005 2:05:23 PM
I believe thats where your issue is. You are setting the control after you are trying to access it. You will need to access the property from control 1 either onInit or on Page Load.

9/20/2005 2:30:30 PM
Thanks Nick, I appreciate your help. I solve my provlem by using session variables.
Thanks again for your help and your time.

9/27/2005 4:16:07 AM

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