enbable disable cehckboxes on checkbox in repeater

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XML

<asp:PlaceHolder   ID="PlaceHolder3" runat="server"  Visible=false > <Strong>Hotel Requirement</Strong>
             <asp:Repeater ID="Repeater1"  runat="server">
             <HeaderTemplate>
<table border="1" width="100%">
<tr>
<th>id</th>
<th align=left>Room Categories</th>
<th>single</th>
<th>Double</th>
</tr>
</HeaderTemplate>
<ItemTemplate>
<tr>
<td width="5%">
    <asp:Label ID="Label3" runat="server" Text= '<%# Container.DataItem("packageid")%>' /></td>
<td> <asp:CheckBox ID="chk_packages" AutoPostBack=true runat="server" Text = <%#Container.DataItem("package_name")%> /> </td>

<td><%#Container.DataItem("single_rate")%><asp:CheckBox  AutoPostBack=true ID="single" Enabled=false runat="server" /></td>

<td><%#Container.DataItem("double_rate")%><asp:CheckBox  AutoPostBack=true ID="Double" runat="server" /></td>
<td><asp:Label ID="Label2" runat="server" Text="Label"></asp:Label></td>
</tr>
</ItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
             </asp:Repeater>
        </asp:PlaceHolder>

I want so that when any package checkbox is clicked in repeater, two other checkboxes in repeater (single,double get enable) in the same row and enabled.
When I un-uncheck it, they are also disabled.

I write some stuff in my application in order to do but it's not working as required.

See the code

VB

Private Sub Repeater1_ItemCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles Repeater1.ItemCreated
        Dim ri As RepeaterItem = CType(e.Item, RepeaterItem)
        Dim elemType As ListItemType = e.Item.ItemType
        If (elemType = ListItemType.Item) OrElse (elemType = ListItemType.AlternatingItem) Then
          Dim cb As CheckBox = ri.FindControl("chk_packages")
            AddHandler cb.CheckedChanged, AddressOf Me.myCheckedChanged
           'cb.CheckedChanged += New EventHandler(CheckedChanged)
        End If
    End Sub
Private Sub myCheckedChanged(ByVal sender As Object, ByVal e As EventArgs)
/// I need help here
end sub

Posted 2-Dec-10 15:39pm

erummirza

Updated 2-Dec-10 21:50pm

Dalek Dave

v3

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Comments

Sunasara Imdadhusen 3-Dec-10 2:21am

Hi you can done using Javascript, can i send you a code for the same?

Dalek Dave 3-Dec-10 3:50am

Edited for Grammar and Readability.

2 solutions

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erummirza · Answer 1 · 2010-12-02T20:38:00

Solution 1

problem has been resolved , i already did it

Posted 2-Dec-10 20:38pm

erummirza

Comments

Dalek Dave 3-Dec-10 3:50am

Well Done, always feels good when you solve something!

peakercai 31-May-11 15:19pm

Would you please tell me how you solve it, I have same problem now! thanks!

erummirza · Answer 2 · 2010-12-03T01:19:00

ok now that problem has been "reslolved" now i need to put certain validation in that means at least one Packages must be selected with either single or double rooms

so behind submitt button i write follwoing code

VB

'get how many packages hav been selected
         Dim c As Int32
         Dim str As String
         For Each dataItem As RepeaterItem In Repeater1.Items
             Dim ckchecked As CheckBox = DirectCast(dataItem.FindControl("chk_packages"), CheckBox)


             If ckchecked.Checked Then
                 Dim chk_single As CheckBox = DirectCast(dataItem.FindControl("single_rate"), CheckBox)
                 Dim chk_double As CheckBox = DirectCast(dataItem.FindControl("double_rate"), CheckBox)

                 If chk_single.Checked Then
                     c = c + 1
                 ElseIf chk_double.Checked Then
                     c = c + 1
                 End If


             End If
         Next

         If c = 0 Then
             lbl_error_package.Visible = True

             lbl_error_package.Text = "please select at least one package"
         Else

             lbl_error_package.Visible = False
         End If

and .aspx page is

XML

<asp:Repeater ID="Repeater1"  runat="server">
             <HeaderTemplate>
<table border="1" width="100%">
<tr>
<th>id</th>
<th align=left>Room Categories</th>
<th>single</th>
<th>Double</th>

</tr>
</HeaderTemplate>
<ItemTemplate>

<tr>
<td width="5%">
    <asp:Label ID="Label3" runat="server" Text= '<%# Container.DataItem("packageid")%>' /></td>
<td> <asp:CheckBox ID="chk_packages" AutoPostBack=true runat="server" Text = <%#Container.DataItem("package_name")%> />  </td>

<td><%#Container.DataItem("single_rate")%><asp:CheckBox  AutoPostBack=true ID="single" Enabled=false runat="server" />Number of Rooms<asp:TextBox ID="txt_single" Enabled=false  width="10px"   MaxLength="2" runat="server"></asp:TextBox></td>

<td><%#Container.DataItem("double_rate")%><asp:CheckBox  AutoPostBack=true ID="Double" Enabled=false runat="server" />Number of Rooms<asp:TextBox ID="txt_double" Enabled =false  width="10px"   MaxLength="2" runat="server"></asp:TextBox></td>
<td></td>
</tr>

</ItemTemplate>

<FooterTemplate>

</table>
</FooterTemplate>

         </asp:Repeater>

its unable to find control and give exception
Object reference not set to an instance of an object.

VB

Dim chk_single As CheckBox = DirectCast(dataItem.FindControl("single_rate"), CheckBox)

i need to check if user select package he must select either single or double room package

i hope i m quite clear in problem