Help with hiding LinkButton in DataList
(Monday, January 30, 2006)
Found the following interesting discussion in the Newsgroups:
Help with hiding LinkButton in DataList
by:News
| Hi,
I need help with datalist and linkbutton.
I need a LinkButton to be visible in datalist only on the condition when
datafield "is_measure_customchecklist" in a db table set to true.
Here is the code (in parts):
<asp:DataList id="dtl1"
runat="server"
DataKeyField="program_id"
OnItemCommand="DoItemSelect"
OnItemCreated="Item_Created"
OnItemDataBound="BindProgramGrid" >
<ItemTemplate>
<%# Container.DataItem("name") %>
<asp:LinkButton Visible="false" ID="managechecklist"
CommandName="managechecklist" Text="Manage Checklist"
CommandArgument='<%#DataBinder.Eval(Container.DataItem,
Runat="server" />
</ItemTemplate>
<SelectedItemTemplate>
<b><%# Container.DataItem("name") %></b> <asp:LinkButton
CommandName="Editprogram" Text="Edit Program" runat="server" />
<asp:LinkButton ID="managechecklist" CommandName="managechecklist"
Text="Manage Checklist" CommandArgument='<%#
DataBinder.Eval(Container.DataItem, "is_measure_customchecklist") %>'
Runat="server" />
.....
</SelectedItemTemplate>
1. I tried with this method (below) but can not get value of the
CommandArgument of the LinkButton (understand that commandargument is not
part of DataListItemEventArgs):
Sub Item_Created(sender As Object, e As DataListItemEventArgs)
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType =
ListItemType.AlternatingItem Then
' Retrieve the Label control in the current DataListItem.
Dim lbtnManageCheckist As LinkButton =
CType(e.Item.FindControl("managechecklist"), LinkButton)
lbtnManageCheckist.visible = False
If lbtnManageCheckist.CommandArgument.toString() Then
lbtnManageCheckist.visible = True
End If
End If
End Sub
2. I tried another way, here I can get the value of CommandArgument value
but setting
of the link button (lbtnManageCheckist.visible = True) to visible is not
working:
Sub DoItemSelect(sender As Object, e As DataListCommandEventArgs)
If e.Item.ItemType = ListItemType.Item Or e.Item.ItemType =
ListItemType.AlternatingItem Then
' Retrieve the Label control in the current DataListItem.
Dim lbtnManageCheckist As LinkButton =
CType(e.Item.FindControl("managechecklist"), LinkButton)
lbtnManageCheckist.visible = False
If lbtnManageCheckist.CommandArgument.toString() Then
lbtnManageCheckist.visible = True
End If
End If
End Sub
Can anyone advise what is the better way to get this thing working. I need
link button to appear in DataList on condition "is_measure_customchecklist"
is true
Thank you...
| | | Reply:
by:Cor Ligthert
| | | Hi News,
Why do you not set that visible and not visible in the server side load
event?
Cor
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