When I click “delete” linkbutton inside gridview I want the bulletedlist item will added programmatically. So on linkbutton “lnkDelete” I added new method called load.
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div class="row" id="tbMessage" runat="server" visible="false">
<asp:BulletedList runat="server" ID="blErrorMessage" BulletStyle="Square" DisplayMode="Text">
</asp:BulletedList>
</div>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="upEmployeeList" runat="server">
<ContentTemplate>
<asp:GridView runat="server" id="gvwEmployeeList" AutoGenerateColumns="false" Width="100%" OnRowCommand="gvwEmployeeList_RowCommand" >
<Columns>
<asp:TemplateField HeaderText="Action" ItemStyle-HorizontalAlign="Center">
<ItemStyle Width="125px" />
<ItemTemplate>
<asp:LinkButton ID="lnkDelete" runat="server" CommandArgument='<%#Eval("UserName") %>' CommandName='Hapus' Text='Delete' OnLoad="lnkDelete_Load"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" ItemStyle-HorizontalAlign="Left" Visible="true"
ItemStyle-VerticalAlign="Top">
<ItemStyle Width="150px" />
<ItemTemplate>
<asp:Label ID="lblFullName" runat="server" Text='<%#Eval("PreferredName") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" />
</asp:TemplateField>
<asp:TemplateField HeaderText="User Name" ItemStyle-HorizontalAlign="Left" Visible="true"
ItemStyle-VerticalAlign="Top">
<ItemStyle Width="150px" />
<ItemTemplate>
<asp:Label ID="lblUserName" runat="server" Text='<%#Eval("UserName") %>'></asp:Label>
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" />
</asp:TemplateField>
</Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
This is the code behind.
protected void lnkDelete_Load(object sender, EventArgs e)
{
LinkButton btn = (LinkButton)sender;
UpdatePanel1.Triggers.Add(new AsyncPostBackTrigger { ControlID = btn.UniqueID, EventName = "click" });
}
protected void gvwEmployeeList_RowCommand(object sender, GridViewCommandEventArgs e)
{
switch (e.CommandName)
{
case "Hapus":
string errMessage = string.Empty;
try
{
.....
.....
}
catch(Exception ex)
{
errMessage = ex.ToString();
}
if (!string.IsNullOrEmpty(errMessage))
{
blErrorMessage.Items.Clear();
blErrorMessage.Items.Add(errMessage);
}
break;
}
}
By using above code I can show the item added to “blErrorMessage” inside UpdatePanel1
Reference : http://www.npathweb.com/2009/09/21/using-gridview-controls-as-a-asyncpostbacktrigger/
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