How to Add a blank row to asp repeater during ItemDataBound event? - asp.net

Question

I bind the repeater with SqlDataReader but I want when repater has no row than a blank row is added in ItedDataBound Event

Answer 1

1- First Create A DataTable Object to hold your data
2- Check for the Number of Rows in the DataTable if Zero then Add Empty DataRow Object To DataTable
3- Bind Your Repeater to the DataTable Instead to Datareader Object
if(dt.Rows.Count==0)
{
DataRow dr=dt.NewRow();
dt.Rows.Add(dr);
}
rptDemo.DataSource=dt;
rptDemo.DataBind();

Answer 2

Try this.
Place label in the footer of repeater in FooterTemplate and by default set visible to false and in ItemDataBound set to visible=true when item count is 0 or less than 1.
<asp:Repeater ID="rptDemo" runat="server"
OnItemDataBound="rptDemo_ItemDataBound">
<ItemTemplate>
.......
</ItemTemplate>
<FooterTemplate>
<%-- Label used for no data available --%>
<asp:Label ID="lblMsg" runat="server" CssClass="errMsg" Text="Sorry, no item is there to show." Visible="false">
</asp:Label>
</FooterTemplate>
protected void rptDemo_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
if (rptDemo.Items.Count < 1)
{
if (e.Item.ItemType == ListItemType.Footer)
{
Label lblFooter = (Label)e.Item.FindControl("lblMsg");
lblFooter.Visible = true;
}
}
}
Hope this helps!

Answer 3

My requirement was to show add row inside repeater. Me included a blank row as the last item by doing a small checking, in all other rows, blank row made hidden.
Used
<%# (((IList)((Repeater)Container.Parent).DataSource).Count).ToString() == (Container.ItemIndex + 1).ToString() %>
checking to decide whether to show or hide blank row.
Full code of view:
<table>
<asp:Repeater ID="repeater1" OnItemCommand="repeater_user_Itemcommand" runat="server">
<HeaderTemplate>
<tr>
<td>
Name
</td>
<td>
Email
</td>
<td>
Delete
</td>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td>
<asp:Label ID="lblName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Name") %>'></asp:Label>
</td>
<td>
<asp:Label ID="lblEmail" runat="server" Text='<%# Eval("Email") %>'></asp:Label>
</td>
<td>
<asp:LinkButton ID="btnDelete" runat="server" CommandArgument='<%# Eval("ID") %>'
CommandName="delete">Delete</asp:LinkButton>
</td>
</tr>
<tr id="Tr1" runat="server" visible='<%# (((IList)((Repeater)Container.Parent).DataSource).Count).ToString() == (Container.ItemIndex + 1).ToString() %>'>
<td>
<asp:TextBox ID="txtName_add" runat="server" Enabled="True" Text='' Visible="false"></asp:TextBox>
</td>
<td>
<asp:TextBox ID="txtEmail_add" runat="server" Text='' Visible="false"></asp:TextBox>
</td>
<td>
<asp:LinkButton ID="btnShowAdd" runat="server" CommandName="add">Add</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
</table>