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EOF For OleDbDataAdapter or DataSet
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Kilgo, John (alt)
-- Moved from [aspngdata] to [ngfx-oledb] by Tony Stark <Click here to reveal e-mail address> --

My first "real" .Net page displays all of the tables in a database in a
dropdownlist. Upon selection of a table name, a DataGrid (with paging)
displays the data. Some of the tables, however, contain no rows.

When a table with no rows is selected it usually displays the column names
and nothing else. Occasionaly (inconsistently), however, I receive an error
saying that the DataGrid's PageIndex must be > 0. I would like to avoid
this inconsistent error, and I would like to display "No Rows Found" in a
label for these tables.

My problem is I can't seem to find an EOF or IsEmpty type of property to let
me know that no rows were returned.

A code snippet follows:
Dim dadTableRecs As OleDbAdapter
Dim dstTableRecs As DataSet
strTable = ddlTables.SelectedItem.Text
strSQL = "SELECT * FROM " & strTable
dadTableRecs = New OleDbAdapter(strSQL, strConn)
dstTableRecs = new DataSet
dadTableRecs.Fill(dstTableRecs)
dtgDataGrid.DataSource = dstTableRecs
dtgDataGrid.DataBind()

Somewhere in there there is bound to be a way to know that no rows were
returned.

Thanks for any help you can provide.

John Kilgo

John Kilgo
Brandt Information Services, Inc.
Click here to reveal e-mail address
(850) 877-7713 ext. 554
Reply to this message...
 
    
Andy Smith
the DataSet has a Rows collection, which you could check for a 0 Count.

[Original message clipped]

    > dtgDataGrid.DataSource =3D dstTableRecs
    > dtgDataGrid.DataBind()
    dtgDataGrid.Visible =3D True
    lblNoRows.Visible =3D False
Else
    dtgDataGrid.Visible =3D False
    lblNoRows.Visible =3D True
End If

__
Andy Smith
Keyboard Jockey #3a7-2.78.1

[Original message clipped]
Reply to this message...
 
 
System.Data.DataSet
System.Data.OleDb.OleDbDataAdapter
System.Web.UI.WebControls.DataGrid
System.Windows.Forms.DataGrid




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