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"Kevin Spencer" <> wrote in message
news:%23jV7$... >> How would I use that to determine the type of control if I were passed >> something like: >> >> sub something(s as object, e as DataListCommandEventArgs) > > Huh??? Did someone pass a sub to you? Just pass it back. Actually, I might have this wrong. I am using an EventArgs not the DataListCommandEventArgs (I think). I have a Repeater object which has a bunch of asp:Labels and asp:Link buttons. This Repeater object is part of a DataList object. I need to get to the parent of the Repeater this control is part of. A LinkButton might look like: <asp:LinkButton id="Interviews" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Interviews") %>' onClick="Interviews_Click" /> I then have a routine: ************************************************** *********** sub Interviews_Click(src as object, args as EventArgs) end sub ************************************************** ************** I need to get the DataList object that is the parent of the "Interviews" control. The Interviews control has the detail information I need to get and my repeater is a summary. I hope I am explaining this right. Once I get the Datalist control, I can use FindControl to get the object I am really after (a reference code, for instance). So I have something like <asp  ataList \> objects..<asp:repeater \> objects such as the link button below <asp:LinkButton \> I hope that isn't too confusing (it is to me). Thanks, Tom. > -- > HTH, > Kevin Spencer > .Net Developer > Microsoft MVP > Neither a follower > nor a lender be. > > "tshad" <> wrote in message > news:#... >> "Kevin Spencer" <> wrote in message >> news:%... >> > Control.Parent >> >> How would I use that to determine the type of control if I were passed >> something like: >> >> sub something(s as object, e as DataListCommandEventArgs) >> >> Thanks, >> >> Tom. >> > >> > -- >> > HTH, >> > Kevin Spencer >> > .Net Developer >> > Microsoft MVP >> > Neither a follower >> > nor a lender be. >> > >> > "tshad" <> wrote in message >> > news:... >> >> If we have nested controls, how do we easily find the parent? >> >> >> >> I know how to find Child controls - I would do something like: >> >> >> >> >> > > ************************************************** ************************** >> > ************ >> >> Sub OnSelectIndexChanged(sender as Object,e as > DataListCommandEventArgs) >> >> trace.warn("inside OnSelectIndesChanged") >> >> try >> >> InfoLabel.Visible = False >> >> if e.CommandName = "Select" then >> >> DataList1.SelectedIndex = e.Item.ItemIndex >> >> end if >> >> >> >> dim refCode as Label = e.Item.FindControl("lblRefCode") >> >> >> >> Dim oRepeater as Repeater = >> >> >> > > CType(DataList1.Items(DataList1.SelectedIndex).Fin dControl("Repeater1"),Repe >> > ater) >> >> Dim oDetail as CheckBox = >> >> >> > > CType(DataList1.Items(DataList1.SelectedIndex).Fin dControl("DetailCheck"),Ch >> > eckBox) >> >> Dim oBut as ImageButton = >> >> >> > > CType(DataList1.Items(DataList1.SelectedIndex).Fin dControl("ExpandButton"),I >> > mageButton) >> >> >> > > ************************************************** ************************** >> > *************** >> >> >> >> But what if I push a button in a child control and need to get to the >> > Parent >> >> control? Is there an easy way to do this? >> >> >> >> Thanks, >> >> >> >> Tom. >> >> >> >> >> > >> > >> >> > > |
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"tshad" <> wrote in message
news:O%... > "Kevin Spencer" <> wrote in message > news:%23jV7$... >>> How would I use that to determine the type of control if I were passed >>> something like: >>> >>> sub something(s as object, e as DataListCommandEventArgs) >> >> Huh??? Did someone pass a sub to you? Just pass it back. > > Actually, I might have this wrong. I am using an EventArgs not the > DataListCommandEventArgs (I think). > > I have a Repeater object which has a bunch of asp:Labels and asp:Link > buttons. This Repeater object is part of a DataList object. I need to > get to the parent of the Repeater this control is part of. > > A LinkButton might look like: > > <asp:LinkButton id="Interviews" runat="server" Text='<%# > DataBinder.Eval(Container, "DataItem.Interviews") %>' > onClick="Interviews_Click" /> > > I then have a routine: > ************************************************** *********** > sub Interviews_Click(src as object, args as EventArgs) > > end sub > ************************************************** ************** > > I need to get the DataList object that is the parent of the "Interviews" > control. The Interviews control has the detail information I need to get > and my repeater is a summary. I hope I am explaining this right. > > Once I get the Datalist control, I can use FindControl to get the object I > am really after (a reference code, for instance). > > So I have something like > > <asp ataList \> objects..> <asp:repeater \> objects such as the link button below > <asp:LinkButton \> > > I hope that isn't too confusing (it is to me). Tom, I think I see what you're getting at, and you may be going about it the wrong way. First of all, when a LinkButton is clicked inside of a Repeater, DataList or DataGrid, an ItemCommand event is raised in the Repeater, DataList or DataGrid. The RepeaterCommandEventArgs passed to that event handler will supply it with the CommandName and CommandArgument properties which came from the LinkButton, and in fact, the CommandSource property will return a reference to the LinkButton itself. You will also get the Item property, which is a reference to the RepeaterItem this LinkButton is inside of. Of course, the sender parameter will be a reference to the Repeater object. If that is inside of the DataList (or, more accurately, inside of a DataListItem), then you can get to the DataList by: private void MyRepeater_ItemCommand(object sender, RepeaterCommandEventArgs e) { Repeater rpt = (Repeater) sender; Control rptParent = rpt.Parent; DataList dataList = (DataList) rptParent.Parent; // I think } But this only solves half of your problem. The question is exactly what do you plan to get from that DataList? It sounds like you plan to access the data to which the list was bound, but it won't be there on a PostBack. Is this a generic scenario, or something that just happens on a single page? John Saunders |
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