Gridview under Repeater control in asp.net - asp.net

Question

i have a repeater control which contains grids, based on values from database, say for example i have 2 grids inside repeater control, now both the grids contains a column which have up and down buttons, now when user clicks on the button from any grids, how can i check from which grid the button is called.
below is my code where i am filling the grids on RepeaterItemDataBound Event
GridView gvw = e.Item.FindControl("grid") as GridView;
gvw.DataSource = info.GetStories(sectionNames[e.Item.ItemIndex].Trim());
gvw.DataBind();
here section name contains the name of the sections, based on number of sections, i generate the grids.
My Design looks like this:
<asp:Repeater ID="rptGrids" runat="server"
OnItemDataBound="rptGrids_ItemDataBound">
<ItemTemplate>
<asp:GridView ID="grid" runat="server" Width="100%" CellPadding="5" AllowPaging="true" ShowHeader="true" PageSize="10" AutoGenerateColumns="false" OnRowCommand="Stories_RowCommand">
<Columns>
<asp:BoundField DataField="ArticleID" HeaderText="Article ID" ItemStyle-CssClass="center" />
<asp:BoundField DataField="CategoryID" HeaderText="Category ID" ItemStyle-CssClass="center" />
<asp:BoundField DataField="Title" HeaderText = "Article Title" />
<asp:BoundField DataField="PublishDate" DataFormatString="{0:d}" HeaderText="Publish Date" ItemStyle-CssClass="center" />
<asp:TemplateField HeaderText="Select Action" ItemStyle-CssClass="center">
<ItemTemplate>
<asp:ImageButton ID="btnMoveUp" runat="server" ImageUrl="/images/up.gif" CommandArgument="Up" CommandName='<%# Container.DataItemIndex + "," + DataBinder.Eval(Container.DataItem, "StoryType") %>' />
<asp:ImageButton ID="btnMoveDown" runat="server" ImageUrl="/images/dn.gif" CommandArgument="Down" CommandName='<%# Container.DataItemIndex + "," + DataBinder.Eval(Container.DataItem, "StoryType") %>' />
<asp:ImageButton ID="btnDelete" runat="server" ImageUrl="/images/deny.gif" CommandArgument="Delete" OnClientClick="return confirm('Are you sure you want to delete this article?');" CommandName='<%# Container.DataItemIndex %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField Visible="false">
<ItemTemplate>
<asp:HiddenField ID="hdStoriesSortOrder" runat="server" Value='<%# Eval("SortOrder") %>' />
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<div class="blank"></div>
</ItemTemplate>
</asp:Repeater>
this is my gridviews row_command event
protected void Stories_RowCommand(object sender, GridViewCommandEventArgs e)
{
int index = Convert.ToInt32(e.CommandName.Split(',')[0]);
string section = e.CommandName.Split(',')[1].Trim().ToString();
string command = e.CommandArgument.ToString();
if (command.ToLower() == "up")
{
GridView grd = rptGrids.Items[1].FindControl("grid") as GridView; // If i specify the index here, i gets proper grid, but how to recognize at runtime.
Response.Write(grd.Rows.Count);
}
else if (command.ToLower() == "down")
{
}
}
can anyone tell me how can i get from which grid up/down button has been clicked.

Answer 1

You can use command argument to pass required value.
Here is sample of using imagebutton in similar way:
<asp:ImageButton ID="btnView" runat="server" ToolTip="<% $resources:AppResource,Edit %>"
SkinID="EditPage" CommandName="myCommand" CommandArgument='<%# Eval("CustomerId") %>'
PostBackUrl='<%# "~/AdminPages/Customer.aspx?id=" + Eval("CustomerId").ToString() %>' />
Take notice on CommandArgument property.You can set it with value that indicates specific gridview inside repeater.
And here is how to check the value:
protected void EntityGridViewContacts_RowCommand(object sender, GridViewCommandEventArgs e)
{
//here you can check for command name...
switch (e.CommandName)
{
case "myCommand":
//here you access command argument...
int customerId = Convert.ToInt32(e.CommandArgument.ToString());
break;
}
//here is how you access source gridview...
GridView gridView = (GridView)sender;
string controlId = gridView.ID;
}
You can also set CommandArgument using this approach:
CommandArgument='<%# GetMySpecialValue() %>'
Then you should declare function on page side something like this:
public string GetMySpecialValue()
{
return "some value";
}