how to make this function signiture pass a delegate

how to make this function signiture pass a delegate

• TkNeo

  Well I want this delegate to listen for a form closing event to fire.....when that form closes i want my delegate to populate a control i have with some data.....this is the function that instantiates my form...now when this form closes i think i need to call this event so should i add it like so....

  public static void DisplayVendorDetails(System.Windows.Forms.Form ParentForm, BHFreight.Tracking.BusinessObjects.VendorOrderLegDetail _VendorLeg) { Tracking.UI.MainWindows.VendorOrderLegDetailsForm frmVendorLeg = new VendorOrderLegDetailsForm(); frmVendorLeg._VendorDetail = _VendorLeg; frmVendorLeg.LoadVendorObjectToForm(); frmVendorLeg.ShowDialog(ParentForm); frmVendorLeg.OnClosing += MyDelegate }

  
  
  

• oscarg102941

  You can create an object of delegate class something like this:

  delegate void SomeDelegate (string data);

  and then you can pass this delegate to your function like this:

  Tracking.UI.MainWindows.VendorOrderLegDetailsForm.DisplayVendorDetails(this.FindForm(), (BHFreight.Tracking.BusinessObjects.VendorOrderLegDetail)_OrderLegDetail, SomeDelegate UpdateControl);
  
  in vender details you can call this delegate using:

  pivate void DisplayVendorDetails()

  {

  UpdateControl("SomeString");

  //// Some code

  }

  where the original function reference by delegate looks like this:

  private void ShowString(sting showString)

  {

  Console.WriteLine(showString);

  }

  And creattion of delgate will be like this before passing it to DisplayVenderDetails:

  SomeDelegate someDelegate = new SomeDelegate(ShowString);

  Tracking.UI.MainWindows.VendorOrderLegDetailsForm.DisplayVendorDetails(this.FindForm(), (BHFreight.Tracking.BusinessObjects.VendorOrderLegDetail)_OrderLegDetail, someDelegate );

  Best Regards,

  Rizwan

  
  
  

• FERRAND

  I think you dont need to pass delegate here in this situation. Just create and event handler for FormClosing on frmVEnderLeg and put it there like this:

  frmVendorLeg.Closing += new System.Windows.Forms.FormClosingEventHandler(frmVendorLeg_Closing);

  and here is:

  public void frmVendorLeg_Closing(object sender, FormClosingEventArgs e)

  {

  /// Do your work here........

  }

  Still need to send delegate

  Try this:

  private delegate void FrmClosing(object sender, FormClosingEventArgs e);

  create it's instance and pass this to function....

  Best Regards,

  Rizwan

  
  
  
• how to make this function signiture pass a delegate