I'm having problems deleteing rows from a datagrid because the row
uses a composite key (personID and activityID). I can retrieve the
value of one key but don't know how I can retrieve the value of the
other before proceeding with the delete command - any ideas?
Here's the aspx code for the grid:
<asp:datagrid id="dgAssignedActivity" runat="server"
ShowFooter="True" Width="650px" AutoGenerateColumns="False"
BorderWidth="1px"
BackColor="White" BorderColor="#E7E7FF" BorderStyle="None"
CellPadding="3" GridLines="Horizontal">
<SelectedItemStyle Font-
Bold="True" ForeColor="#F7F7F7"
BackColor="#738A9C"></SelectedItemStyle>
<AlternatingItemStyle
BackColor="#F7F7F7"></AlternatingItemStyle>
<ItemStyle
ForeColor="#4A3C8C" BackColor="#E7E7FF"></ItemStyle>
<HeaderStyle Font-Size="X-
Small" Font-Bold="True" ForeColor="#F7F7F7"
BackColor="#4A3C8C"></HeaderStyle>
<FooterStyle
ForeColor="#4A3C8C" BackColor="#B5C7DE"></FooterStyle>
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
<asp:LinkButton id="LinkButton2" runat="server" Text="Edit"
Font-Size="X-Small" Height="20px" CommandName="Edit"
CausesValidation="false">Edit</asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton id="LinkButton4" runat="server" Text="Update" Font-
Size="X-Small" Height="20px"
CommandName="Update">Update</asp:LinkButton>
<asp:LinkButton id="LinkButton3" runat="server" Text="Cancel" Font-
Size="X-Small" Height="20px"
CommandName="Cancel"
CausesValidation="false">Cancel</asp:LinkButton>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<ItemTemplate>
<asp:LinkButton id="LinkButton1" runat="server"
Text="Delete" Font-Size="X-Small" Height="20px"
CommandName="Delete"
CausesValidation="false">Delete</asp:LinkButton>
</ItemTemplate>
<FooterTemplate>
<asp:LinkButton id="lnkAdd" runat="server" Font-Size="X-
Small" Height="20px">Add</asp:LinkButton>
</FooterTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
Visible="False" HeaderText="PersonID">
<ItemTemplate>
<asp:Label id="lblUserID" runat="server" Visible="False"
Width="99px"></asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
Visible="False" HeaderText="ActivityID">
<ItemTemplate>
<asp:Label id=lblActivityID runat="server" Text='<%#
DataBinder.Eval(Container, "DataItem.pa_ActivityID") %>'
Visible="False">
</asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
HeaderText="Activities">
<HeaderStyle
Width="75px"></HeaderStyle>
<ItemTemplate>
<asp:Label id=lblActivities runat="server" Text='<%#
DataBinder.Eval(Container, "DataItem.ActivityName") %>'
Width="300px" Font-Size="X-Small">
</asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList id="ddlActivity" runat="server"
Width="300px" Height="20px" Font-Size="X-Small" Datasource="<%#
GetddlActivityData %>" DataValueField="ActivityID"
DataTextField="ActivityName">
</asp:DropDownList>
</FooterTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
HeaderText="No. of People">
<HeaderStyle
Width="50px"></HeaderStyle>
<ItemTemplate>
<asp:Label id="lblNoPeople" runat="server" Width="40px" Font-
Size="X-Small"></asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:TextBox id="txtAddNoPeople" runat="server" Width="40px"
Font-Size="X-Small" Height="20px"></asp:TextBox>
</FooterTemplate>
<EditItemTemplate>
<asp:TextBox id="txtNoPeople" runat="server" Width="40px"
Font-Size="X-Small" Height="20px"></asp:TextBox>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
HeaderText="Hours/person">
<HeaderStyle
Width="50px"></HeaderStyle>
<ItemTemplate>
<asp:Label id="lblHoursPerson" runat="server" Width="40px"
Font-Size="X-Small" Height="20px"></asp:Label>
</ItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn
HeaderText="Name">
<HeaderStyle
Width="125px"></HeaderStyle>
<ItemTemplate>
<asp:Label id=lblName runat="server" Text='<%#
DataBinder.Eval(Container, "DataItem.Name") %>' Width="158px" Font-
Size="X-Small" Height="20px">
</asp:Label>
</ItemTemplate>
<FooterTemplate>
<asp:DropDownList id=ddlAddName runat="server" Width="158px"
Font-Size="X-Small" Height="20px" DataValueField="personID"
DataTextField="Name" DataSource="<%# getddlNameData %>">
</asp:DropDownList>
</FooterTemplate>
<EditItemTemplate>
<asp:DropDownList id=ddlName runat="server" Width="158px"
Font-Size="X-Small" Height="20px" OnPreRender="SetDropDownIndex"
DataValueField="personID" Datasource="<%# GetddlNameData %>"
DatatextField="Name">
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateColumn>
</Columns>
<PagerStyle
HorizontalAlign="Right" ForeColor="#4A3C8C"
BackColor="#E7E7FF"></PagerStyle>
</asp:datagrid></TD>
Code behind:
Private Sub dgAssignedActivity_DeleteCommand(ByVal source As Object,
ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs)
Handles dgAssignedActivity.DeleteCommand
Dim personID As Integer
ActivityID = dgAssignedActivity.DataKeys
(e.Item.ItemIndex)
'personID = e.Item.Cells(3)
lblError.Text = " "
Session("UserIdToDelete") = -1
'Dim dtnames = DataHelper.DeleteUser(personID)
dgAssignedActivity.ShowFooter = False
Getdgdata()
End Sub
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