Question

I’m trying to retrive a dataset to a Gridview, but I just don’t get any row in my Gridview. What am I doing wrong?

the page code

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load     CType(Master, AreaTrabalho).AlteraTitulo = 'Projectos'      Using oSQL As New clsSQL(System.Configuration.ConfigurationManager.AppSettings('ConnectionString1'))         If oSQL.OpenConnection Then             oSQL.ToDataGrid(Me.GridView1, 'Select * from users')         End If     End Using End Sub 

the class functions used to fetch data

Public Function ToDataGrid(ByVal oDataGrid As GridView, _                            ByVal sQuery As String, _                   Optional ByVal sTable As String = '') As Boolean     Try          Dim objDataSet As New Data.DataSet         'Preenche o dataset         objDataSet = ToDataSet(sQuery, sTable)          oDataGrid.DataSource = objDataSet.Tables(0)          objDataSet.Dispose()         objDataSet = Nothing          Return True     Catch ex As Exception         RaiseEvent OnError('ToDataGrid', ex)     End Try End Function  Public Function ToDataSet(ByVal sQuery As String, Optional ByVal sTable As String = '') As Data.DataSet     Try          m_objCommand = New SqlCommand(sQuery, m_objConnection)          Dim objDataSet As New Data.DataSet         Dim objSqlDataAdapter As SqlDataAdapter = New SqlDataAdapter(m_objCommand)          'Verifica se foi defenido a tabela         If sTable = '' Then             objSqlDataAdapter.Fill(objDataSet)         Else             objSqlDataAdapter.Fill(objDataSet, sTable)         End If          objSqlDataAdapter.Dispose()         objSqlDataAdapter = Nothing          Return objDataSet     Catch ex As Exception         RaiseEvent OnError('ToDataSet', ex)         Return Nothing     End Try End Function 

Thanks

Answer 1

You are not calling the Databind method on the GridView after setting the datasource in your ToDataGrid method:

oDataGrid.DataBind()