DataKeys GridView

[teju]

Hello,
I have two datakeys defined in the grid view. I want to access the both the datakeys when u click a button. Iam able to access one of the datakeys but not the other. Below is the code

<asp:GridView ID="GridView2" runat="server" AutoGenerateCol umns="False" DataSourceID="S qlDataSource1"
DataKeyNames="S igned_ID,Sessio nCode" CellPadding="4" ForeColor="#333 333" GridLines="None " Width="297px">
<Columns>

The code behind

Protected Sub GetAuthorIDs(By Val sender As Object, ByVal e As System.Web.UI.I mageClickEventA rgs)


For Each row As GridViewRow In GridView2.Rows
' Access the CheckBox
Dim cb As CheckBox = row.FindControl ("chk1")
If cb IsNot Nothing AndAlso cb.Checked Then
' First, get the SignedID for the selected row Iam able to get the first datakey
Dim SignedId = GridView2.DataK eys(row.RowInde x).Value
'CheckedItems.A dd(SignedId.ToS tring())

Response.Write( "SignedID" & SignedId & "<br>")
' Dim strSQL = "Delete from XXXX where Signed_Id=" & SignedId
'SqlDataSource1 .DeleteCommand = strSQL
'SqlDataSource1 .Delete()
//// I want to get the second Datakeyname
Dim sessionID = GridView2.DataK eys(0).Value
Response.Write( sessionID)

End If
Next

End Sub

[kenobewan]

An important property that plays a special role in Update and Delete operations is the DataKeyNames property. This property is typically set to the names of fields from the data source that are part of a primary key used to match a given row in the data source. Multiple keys are comma-separated when specifying this property declaratively, although it is common to only have one primary key field. The values of fields specified by the DataKeyNames property are round-tripped in viewstate for the sake of retaining original values to pass to an Update or Delete operation, even if that field is not rendered as one of the columns in the GridView control. When the GridView invokes the data source Update or Delete operation, it passes the values of these fields to the data source in a special Keys dictionary, separate from the Values dictionary that contains new values entered by the user while the row is in edit mode (for update operations). The contents of the Values dictionary are obtained from the input controls rendered for the row in edit mode. To exclude a value from this dictionary, set the ReadOnly property to true on the corresponding.