[RESOLVED] There is so a row a position 0

My code:

Code:

---

    Sub PopulateGrid()

        Me.gvDocList.Visible = False

        GetDataForGrid(ds)

        If ds.Tables.Count = 0 Then Exit Sub
        If ds.Tables(0).Rows.Count = 0 Then Exit Sub

        Me.gvDocList.Visible = True

        Try

            Me.gvDocList.DataSource = ds

            Me.gvDocList.DataBind()

        Catch ex As Exception
            Response.Write("Exception in PopulateGrid(): " + ex.Message)
        End Try
    End Sub

---

The exception I am getting:
Exception in PopulateGrid(): There is no row at position 0.

What the debugger says after I get the exception:
? ds.Tables(0).Rows(0).Item(0).ToString
"10304"

Isn't that a row at position zero??? I must be tired...I should've gotten that free iced coffee at DD today :(

at what line you are getting this exception.......what value of ex.tostring

where is the code for GetDataForGrid(ds)

Also check to see if your page is running through the code twice... sometimes I get buttons that bug out and do that.. in that case I just delete the button and replace it with another.

Quote:

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Originally Posted by riteshjain1982

at what line you are getting this exception.......what value of ex.tostring

---

I am calling the exception handler when this line executes: Me.gvDocList.DataBind()

check if you have any itemdatabound event for dgDOCList ?

Quote:

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Originally Posted by Besoup

where is the code for GetDataForGrid(ds)

---

Code:

---

    Sub GetDataForGrid()

        Dim connString As String = _
            ConfigurationManager.ConnectionStrings("ConnectMe").ConnectionString

        Dim conn As New SqlConnection(connString)

        Dim command As New SqlCommand()
        command.CommandType = CommandType.StoredProcedure
        command.Connection = conn

        command.CommandText = "up_DocList"

        command.Parameters.Add(New SqlParameter("@cstmr_addr_ik", Data.SqlDbType.Int))
        command.Parameters("@cstmr_addr_ik").Value = sCustomerAddrIk

        Dim adapter As New SqlDataAdapter(command)
        Try
            adapter.Fill(ds)
        Catch ex As Exception
            Response.Write("GetDataForGrid Exception " + ex.Message)
            conn.Close()
            Exit Sub
        Finally
            conn.Close()
        End Try

    End Sub

---

ds is defined global in the class:

Code:

---

    Dim ds As New DataSet

---

I should tell you that this was working perfectly when I defined the SqlDataSource in my designer and set the gridview property to use it also in the designer. I was just running a simple stored proc that took one parameter. Now I am making it more sophisticated in that I have to build the WHERE clause in the stored procedure according to what I pass in for criteria. So I moved the logic to the code-behind. But before even adding the logic for the WHERE clause, I thought I'd check to make sure it still works as it was. Good thing, since it doesn't...

And everything seems to be executing just once... no odd behavior noticed.

Thanks for your help Besoup and riteshjain1982.

did u checked for ItemDataBound event of dgDOCList ?

Quote:

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Originally Posted by riteshjain1982

did u checked for ItemDataBound event of dgDOCList ?

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No, I hadn't checked this. You and I were cross-threading...

Anyway, it is a gridview not a datagrid but you are absolutely right! In the gridview's RowDataBound event I am doing additional processing to format the last column of my grid. I make another call to the database. I don't have an exception handler here :o . So my exception was bubbling up and the wrong procedure was getting blamed.

I should've seen the symptoms of this. On my page, the grid's first row was getting generated except for the last column and then I exceptioned (did I say I was tired yesterday?!)

Thank you so much!
Marlene