CheckBox Validation

[Mike]

I have a hopefully a simple question now that we have purchased your product.

In my RadGrid I have three columns one is a checkbox, the other two are GridBoundColumns. 

Above the grid is a RadComboBox that has a dropdown for COOL  with values of "Yes" or "No".  If I check one of the checkboxes and select "No" in my deopdownlist for Britney Spears is there a way I can have an alert say.....
"Currently she is Cool, are you sure you want to make her Not Cool?"

DropDownList[Yes-No] [submit button]
ChxBox        NAME                        COOL
[ ]                 James Brown                     Yes                 
[x]                 Britney Spears                   Yes  <-- Need to Change to No
[ ]                 Roy Orbison                      Yes
[ ]                 Robert Smith                      Yes

Thank You!

                                            

[Princy]

Hello George,

You can try out the following code to achieve the required scenario.
aspx:

 <asp:DropDownList AutoPostBack="true" ID="DropDownList1" runat="server"  OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" >
        <asp:ListItem Text="Yes">
        </asp:ListItem>
        <asp:ListItem Text="No"></asp:ListItem>
        </asp:DropDownList>

 <MasterTableView DataSourceID="SqlDataSource1" >
        <Columns>
        <telerik:GridTemplateColumn HeaderText="Check" UniqueName="check">
        <ItemTemplate>
            <asp:CheckBox ID="CheckBox1" AutoPostBack="true" runat="server" OnCheckedChanged="CheckBox_Changed"  />
        </ItemTemplate>
        </telerik:GridTemplateColumn>
        <telerik:GridBoundColumn DataField="FirstName" HeaderText="Name" UniqueName="Name">
        </telerik:GridBoundColumn>
        <telerik:GridTemplateColumn HeaderText="Cool" UniqueName="Cool">
        <ItemTemplate>
            <asp:Label ID="Label1" runat="server" Text="Yes"></asp:Label>
        </ItemTemplate>
        </telerik:GridTemplateColumn>
 </MasterTableView>

cs:

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
                foreach (GridDataItem item in RadGrid1.MasterTableView.Items)
                {
                    CheckBox chk = (CheckBox)item.FindControl("CheckBox1");
                    if (chk.Checked)
                    {
                        Label lbl = (Label)item["Cool"].FindControl("Label1");
                        lbl.Text = DropDownList1.Text;
                    }
                }
    }

    protected void CheckBox_Changed(object sender, EventArgs e)
    {
        CheckBox chkbx = (CheckBox)sender;
        if (chkbx.Checked)
        {
            DropDownList1.Attributes.Add("onchange", "confirm();");
        }
    }

js:

 function confirm()
    {
       var drop = document.getElementById('<%=DropDownList1.ClientID %>').selectedIndex;
       if(drop==1)
       {
         alert("Currently she is Cool, are you sure you want to make her Not Cool?");
         }

     return false;
    }

Princy.

[Mike]

Princy,

Two Questions:
1. Is there away to use it with the <tereik:RadComboBox and not using a Label in the Item Template in the grid?
2. Can I do this in the server side and loop through the checkboxes and check it with the dropdownlist throwing a javascript alert if a change is made?

Thanks!