aspx page
------------------------------

                     <asp:GridView runat="server" ID="gvWorkingHours_New" AutoGenerateColumns="false"
                                    OnRowDataBound="gvWorkingHours_New_RowDataBound">
                                        <Columns>
                                            <asp:TemplateField HeaderText="Slot Name">
                                                <ItemTemplate>
                                                    <asp:TextBox runat="server" ID="txtSlotName" CssClass="inputsNoExpression" Text='<%# Eval("SlotName") %>'></asp:TextBox>
                                                </ItemTemplate>
                                            </asp:TemplateField>
                                            <asp:TemplateField HeaderText="From Time">
                                                <ItemTemplate>
                                                    <radCln:RadTimePicker ID="ddlFromTimeHrs" Width="31%" runat="server" TabIndex="2"
                                                        EnableTyping="true" TimeView-TimeFormat="HH:mm" DateInput-DateFormat="HH:mm"
                                                        DateInput-DisplayDateFormat="HH:mm" DateInput-EmptyMessage="From Time">
                                                        <TimeView ID="TimeView1" runat="server" ShowHeader="False" Interval="00:30" Columns="4" OnClientTimeSelected="sree()">
                                                        </TimeView>
                                                    </radCln:RadTimePicker>
                                                    <font class="sf-lab">hrs</font>
                                                </ItemTemplate>
                                            </asp:TemplateField>
                                            <asp:TemplateField HeaderText="To Time">
                                                <ItemTemplate>                                               
                                                  <radCln:RadTimePicker ID="ddlToTimeHrs" Width="31%" runat="server" TabIndex="2"
                                                        EnableTyping="true" TimeView-TimeFormat="HH:mm" DateInput-DateFormat="HH:mm"
                                                        DateInput-DisplayDateFormat="HH:mm" DateInput-EmptyMessage="From Time">
                                                        <TimeView ID="TimeView1" runat="server" ShowHeader="False" Interval="00:30" Columns="4">
                                                        </TimeView>
                                                    </radCln:RadTimePicker>
                                                </ItemTemplate>
                                            </asp:TemplateField>
                                         
                                        </Columns>
                                        <HeaderStyle CssClass="sf-formlabel" />
                                    </asp:GridView>
                           
                                   
--------

aspx.cs file
protected void gvWorkingHours_New_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        DataRowView drv = e.Row.DataItem as DataRowView;
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            RadTimePicker ddlFromTimeHrs = (RadTimePicker)e.Row.FindControl("ddlFromTimeHrs");
            RadTimePicker ddlToTimeHrs = (RadTimePicker)e.Row.FindControl("ddlToTimeHrs");

            ((RadTimePicker)e.Row.FindControl("ddlFromTimeHrs")).Attributes.Add("OnClientTimeSelected", "javascript:return CheckValidTimeHrs_New(" + ddlFromTimeHrs.ClientID + "," +
                ddlToTimeHrs.ClientID + ",1" + ")");

            ((RadTimePicker)e.Row.FindControl("ddlToTimeHrs")).Attributes.Add("OnClientTimeSelected", "javascript:return CheckValidTimeHrs_New(" + ddlFromTimeHrs.ClientID + "," +
                ddlToTimeHrs.ClientID + ",2" + ")");

        
         
        }
    }

---

javascript function

CheckValidTimeHrs_New(value1,value2,value3)
{
alert('Onclienttimeselected');
}

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>

</head>
<body>
    <form id="form1" runat="server">
        <div>
            <rad:RadGrid ID="gvWorkingHours_New" runat="server" Skin="SkeltaGrid" AutoGenerateColumns="false"
            OnItemDataBound = "gvWorkingHours_New_OnItemDataBound">
                <MasterTableView>
                    <Columns>
                     <rad:GridTemplateColumn>
                            <ItemTemplate>
                                <asp:TextBox runat="server" ID="txtSlotName"
                                CssClass="inputsNoExpression"  Text='<%# Eval("SlotName") %>'></asp:TextBox>
                           
                            </ItemTemplate>
                        </rad:GridTemplateColumn>
                        <rad:GridTemplateColumn>
                            <ItemTemplate>
                                <radCln:RadTimePicker ID="rtpFromTime" Width="31%" runat="server" TabIndex="2"
                                    EnableTyping="true" TimeView-TimeFormat="HH:mm" DateInput-DateFormat="HH:mm"
                                    DateInput-DisplayDateFormat="HH:mm" DateInput-EmptyMessage="From Time"
                                    DBSelectedDate='<%# Eval("FromTime") %>'>
                                    <TimeView ID="tvFrom" runat="server" ShowHeader="False" Interval="00:30" Columns="3"                                                                    >
                                    </TimeView>
                                </radCln:RadTimePicker>
                            </ItemTemplate>
                        </rad:GridTemplateColumn>
                        <rad:GridTemplateColumn>
                            <ItemTemplate>
                                <radCln:RadTimePicker ID="rtpToTime" Width="31%" runat="server" TabIndex="2"
                                    EnableTyping="true" TimeView-TimeFormat="HH:mm" DateInput-DateFormat="HH:mm"
                                    DateInput-DisplayDateFormat="HH:mm" DateInput-EmptyMessage="To Time"
                                     DBSelectedDate='<%# Eval("ToTime") %>'>
                                    <TimeView ID="tvTo" runat="server" ShowHeader="False" Interval="00:30" Columns="3"
                                     >
                                    </TimeView>
                                </radCln:RadTimePicker>
                            </ItemTemplate>
                        </rad:GridTemplateColumn>
                    </Columns>
                </MasterTableView>
            </rad:RadGrid>
             <asp:LinkButton ID="LinkButton1" runat="server" OnClick="lnkbtnAddSlot_New_Click" Width="97px"
              CssClass="sf-inputsLinkButton" OnClientClick="return AddSlot_New()">Add Slot_New</asp:LinkButton>
        </div>
    </form>
</body>
</html>

code behind
----------

 protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            SetInitialRowForSlots_New();
        }
    }
    private void SetInitialRowForSlots_New()
    {
        DataTable dtSlots = new DataTable();
        dtSlots.Columns.Add(new DataColumn("SlotName", typeof(string)));
        dtSlots.Columns.Add(new DataColumn("FromTime", typeof(string)));
        dtSlots.Columns.Add(new DataColumn("ToTime", typeof(string)));

        DataRow drSlot = dtSlots.NewRow();
        drSlot["SlotName"] = string.Empty;
        drSlot["FromTime"] = new TimeSpan(0, 0, 0);
        drSlot["ToTime"] = new TimeSpan(0, 0, 0);
        dtSlots.Rows.Add(drSlot);

        gvWorkingHours_New.DataSource = dtSlots;
        gvWorkingHours_New.DataBind();
    }

    protected void lnkbtnAddSlot_New_Click(object sender, EventArgs e)
    {
        DataTable dtSlots = new DataTable();
        dtSlots.Columns.Add(new DataColumn("SlotName", typeof(string)));
        dtSlots.Columns.Add(new DataColumn("FromTime", typeof(string)));
        dtSlots.Columns.Add(new DataColumn("ToTime", typeof(string)));

        foreach (GridDataItem pkgItem in gvWorkingHours_New.MasterTableView.Items)
        {           
            TextBox SlotName = pkgItem.FindControl("txtSlotName") as TextBox;
            RadTimePicker FrTime = pkgItem.FindControl("rtpFromTime") as RadTimePicker;
            RadTimePicker ToTime = pkgItem.FindControl("rtpToTime") as RadTimePicker;

            DataRow dr = dtSlots.NewRow();
            dr["SlotName"] = SlotName.Text;
            dr["FromTime"] = new TimeSpan(((DateTime)(FrTime.DbSelectedDate)).TimeOfDay.Hours, ((DateTime)(FrTime.DbSelectedDate)).TimeOfDay.Minutes, 0);
            dr["ToTime"] = new TimeSpan(((DateTime)(ToTime.DbSelectedDate)).TimeOfDay.Hours, ((DateTime)(ToTime.DbSelectedDate)).TimeOfDay.Minutes, 0);

            dtSlots.Rows.Add(dr);
        }
        DataRow drEmpty = dtSlots.NewRow();
        drEmpty["SlotName"] = string.Empty;
        drEmpty["FromTime"] = new TimeSpan(0, 0, 0);
        drEmpty["ToTime"] = new TimeSpan(0, 0, 0);

        dtSlots.Rows.Add(drEmpty);
        gvWorkingHours_New.DataSource = dtSlots;
        gvWorkingHours_New.DataBind();
    }

    protected void  gvWorkingHours_New_OnItemDataBound(object sender, GridItemEventArgs e)
    {
      

        if (e.Item.ItemType  == GridItemType.Item)
        {
            DataRowView dr = (DataRowView)e.Item.DataItem;
            if (dr != null)
            {
              
                RadTimePicker rtpFrom = (RadTimePicker)e.Item.FindControl("rtpFromTime");
              
                //((RadTimePicker)e.Item.FindControl("rtpFrom")).Attributes.Add("OnClientTimeSelected", "javascript:return sree(" + tvFrom.ClientID + ")");

           
            }
        }

    }





Hi

I placed two radtimepickers (fromtime and totime) inside a radgrid and want to validate in javascript (FromTime should be less than ToTime. I want to show this message in an alert whenever user gives invalid time)
How to achieve this?
I tried attaching onclienttimeselected in onitemdatabound but it is not firing
Please help me

Regards
Sreedhar Ambati