Jay Patel Jay Patel - 1 year ago 61
ASP.NET (C#) Question

In Paged Listview CheckBox_CheckedChanged event not working

The Problem is when I check the checkbox it works great, but when I check the checkbox on next page. previous page check boxes gets unchecked.
Checked box Checked/Unchecked event fires CheckedChanged event. But when I check the checkbox in listview next page of listview it uncheck's the checkboxes of listview previous Page.


ListView.aspx Code


<table class=" example1 table table-bordered table-striped">
<thead>
<tr>
<th>Sr no.</th>
<th>Parent Category</th>
<th>Title</th>
<th>Description</th>
<th>Image</th>
<th>Show on Homepage</th>
<th>Edit</th>
<th>Delete</th>
</tr>
</thead>
<tbody>
<asp:ListView ID="ListCourse" runat="server" OnItemCommand="ListCourse_ItemCommand" DataKeyNames="CID">
<LayoutTemplate>
<tr id="ItemPlaceholder" runat="server">
</tr>
</LayoutTemplate>
<ItemTemplate>
<tr class="gradeA">
<td>
<asp:Label ID="lblSrno" runat="server" Text='<%# Container.DataItemIndex+1 %>'></asp:Label>
</td>
<td>
<asp:Label ID="lbl" runat="server" Text='<%# GetCourse(Convert.ToInt32( Eval("CatID"))) %>'></asp:Label>
</td>
<td>
<asp:Label ID="Lbltitle" runat="server" Text='<%# Eval("Title") %>'></asp:Label>
<asp:Label ID="lablc" runat="server" Visible="false" Text='<%# Eval("CID") %>'></asp:Label>
</td>
<td>
<asp:Label ID="lblDescrption" runat="server" Text='<%# (Eval("Description").ToString().Length <=200)?Eval("Description").ToString(): Eval("Description").ToString().Substring(0, 200) + "..."%>'></b></asp:Label>
</td>
<td>
<img class="img_show " src="/Gallery/<%# Eval("Image")%>">
</td>
<td>
<asp:CheckBox ID="CheckCourse" runat="server" Style="margin-left: 50px;" OnCheckedChanged="CheckCourse_CheckedChanged" AutoPostBack="true" />
</td>
<td>
<asp:LinkButton ID="LinkEdit" runat="server" PostBackUrl='<%# "Add_New_Course.aspx?ID="+ Eval("CID")%>'>Edit</asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="LinkDelete" runat="server" CommandName="DeleteCourse" CommandArgument='<%# Eval("CID") %>' OnClientClick='return confirm("Do you want to delete record ??")'> Delete</asp:LinkButton>
</td>
</tr>
</ItemTemplate>
</asp:ListView>
</tbody>
</table>



Code Behind CheckedChanged


protected void CheckCourse_CheckedChanged(object sender, EventArgs e)
{
CheckBox checkhome = (CheckBox)sender;
ListViewItem item = (ListViewItem)checkhome.NamingContainer;
ListViewDataItem dataItem = (ListViewDataItem)item;
string code = ListCourse.DataKeys[dataItem.DisplayIndex].Value.ToString();
int CID = Convert.ToInt32(code);
Course_Master objnew = DB.Course_Master.Single(p => p.CID == CID);
bool IsHome = CheckOnHome(CID);
if (IsHome == true)
{
if (checkhome.Checked == false)
{
objnew.ShowOnHomePage = false;
}
}
else
{
if (checkhome.Checked == true)
{
objnew.ShowOnHomePage = true;
}
}
DB.SaveChanges();
}

Answer Source

Thank you Guys for the help. I solved it using some simple procedure's by removing the check-boxes from the ListView and adding text instead of it regarding whether the checkbox is checked or not(Yes/No). As I thought it will the easiest way to solve my problem.

Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download