Validate the course name in repeater control in Asp.net

Question

In Repeater Control as follows

CourseName CourseDate Amount
RAFF 29 Jun 14 500
RFPFF 30 Jun 14 600

Submit (Button)

In the above repeater control i want to validate RPST course must be there in the repeater control.

if RPST course is not there in the repeater control i want to show the message "RPST course must be there".

In the above repeater control RAFF and RFPFF course is there. But RPST course is not there in repeater control.

When user clicks the Submit Button i want to validate RPST course must be there.

For that i written a code as follows

if (rptCart1.Items.ToString().Trim() != "RAFF")
{
Label23.Text = "RAFF Course must be there";
}

else if (rptCart1.Items.ToString().Trim() != "RFPFF")
{
Label23.Text = "RFPFF course must be there";

}

else if (rptCart1.Items.ToString().Trim() != "RPST")
{
Label23.Text = "RPST Course must be there";
}

In repeater control both the courses RAFF and RFPFF course is there. Only RPST course is not there.
But when i click the submit button message shows "RAFF Course must be there".

But in the repeater control RAFF course is there. RPST course only is not there.

from my above code what is the mistake i made.please help me.

Khan Abrar Ahmed · Answer

Hi try this you need to collect the data from repeater control and then add the validation like below List lstString = new List (); Foreach(RepeaterItem item in rptCart1.Items) { string courseValue = string.empty; Lable lblCourseName = (Lable)item.FindControl(lblrepCourseName); courseValue = lblCourseName.Text; lststring.add(courseValue); } var objRAFF = form o in lststring where o ==RAFF select o; if(objRAFF != null || objRAFF.count() == 0 ) { Label23.Text = RAFF Course must be there; } var objRFPFF = form o in lststring where o ==RFPFF select o; if(objFPFF != null || objRFPFF.count() == 0 ) { Label23.Text = RFPFF Course must be there; } var objRPST = form o in lststring where o ==RPST select o; if(objRPST != null || objRPST.count() == 0 ) { Label23.Text = RPST Course must be there; }