Reputation: 125
How do I insert an If Else Statement here when I want to display the studentID and loginID if there is no student name/address.
Sub ShowStudentInfo()
Dim dt As DataTable = GetInfoForStudent("test", frmLogin.txtusername.Text, frmLogin.txtPassword.Text)
With dt.Rows(0)
frmLibrary.txtStudentID.Text = .Item("StudentID")
frmLibrary.txtLoginID.Text = .Item("LoginID")
frmLibrary.txtStudentName.Text = .Item("Student Name")
frmLibrary.txtStudentAddress.Text = .Item("Student address")
End With
End Sub
Upvotes: 1
Views: 566
Reputation: 2701
Building off of Gage's answer. You are getting no results because your GetInfoForStudent function is not returning a row. When this happens, your If statement on the Row Count has no Else clause. Put some code there to add a row or whatever, and it should work out.
Sub ShowStudentInfo()
Dim dt As DataTable = GetInfoForStudent("test", frmLogin.txtusername.Text, frmLogin.txtPassword.Text)
If dt.Rows.Count > 0 then
With dt.Rows(0)
if String.IsNullOrEmpty(.Item("Student Name")) AndAlso String.IsNullOrEmpty(.Item("Student Name")) then
frmLibrary.txtStudentID.Text = .Item("StudentID")
frmLibrary.txtLoginID.Text = .Item("LoginID")
else
frmLibrary.txtStudentName.Text = .Item("Student Name")
frmLibrary.txtStudentAddress.Text = .Item("Student address")
end if
End With
Else
'Do something here to add new row, etc.
End If
End Sub
Upvotes: 1
Reputation: 7493
Sub ShowStudentInfo()
Dim dt As DataTable = GetInfoForStudent("test", frmLogin.txtusername.Text, frmLogin.txtPassword.Text)
With dt.Rows(0)
if .Item("Student Name")="" and .Item("Student address")="" then
frmLibrary.txtStudentID.Text = .Item("StudentID")
frmLibrary.txtLoginID.Text = .Item("LoginID")
else
frmLibrary.txtStudentName.Text = .Item("Student Name")
frmLibrary.txtStudentAddress.Text = .Item("Student address")
end if
End With
End Sub
Is that what you were looking for?
Upvotes: 2