Info Please

[settyv]

Hi,

I want to display Business exceptions in Messagebox in asp.net.For
that i used MessageBox
API function.But when i tried calling this function from UI,it is not
displaying messagebox.Please let me know what vould be the problem.


Here is the UI where am calling the function:

private void btnCaseSearch_Click(object sender, System.EventArgs e)
{
Case BCase=new Case ();
SearchParams sp=new SearchParams();
sp.FirstName = txtFirstName.Text;
sp.MiddleName = txtMidName.Text ;
sp.LastName = txtLastName.Text;
if(txtToFiledDate.Text.ToString()=="" ||
txtFromFiledDate.Text.ToString()=="" )
{
sp.FiledTo =DateTime.MaxValue;
sp.FiledFrom = DateTime.MinValue ;
}


if( sp.FirstName==null || sp.LastName==null || sp.MiddleName==null
|| sp.FiledFrom==DateTime.MinValue )
{
BCase.Validate(sp);
//BCase.CheckFieldReqs();


}
else
{
DisplayCaseSearchResults();
}

}



Here is the Validate Function in BLL

[DllImport("User32.dll")]
public static extern int MessageBox(int h, string m, string c, int
type);
public override void Validate(SearchParams sp)
{

//Validate fields
//base.Validate ();


if (sp.FirstName == null || sp.LastName == null || sp.MiddleName ==
null || sp.Organization == null || sp.FiledFrom == DateTime.MinValue ||
sp.FiledTo == DateTime.MinValue || sp.DisplayCaseNum == null ||
sp.CaseCatCode == null)
{
//throw new ApplicationException("Please select any of the item");
MessageBox(0,"Please select any of the item","Case Search",0);

}


Please let me know why am not able to show the messagebox.

Thanks,
Vishnu

 

[John Timney \(MVP\)]

you have to use javascript alert

--
--
Regards

John Timney (MVP)
VISIT MY WEBSITE:
http://www.johntimney.com
http://www.johntimney.com/blog

 

[bruce barker \(sqlwork.com\)]

the messagebox if it worked would appear on the server. but services like
asp.net do not have permission to the desktop, so the messagebox call fails.

-- bruce (sqlwork.com)