or

<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="HowToDisplayHdrTooltipsInTelerikRadgrid._Default" %><%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %><asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"></asp:Content><asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> <asp:ScriptManager runat="server" /> <telerik:RadGrid ID="grid" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" AllowSorting="true" GridLines="None"> <ClientSettings AllowColumnsReorder="True"> </ClientSettings> <MasterTableView DataKeyNames="ProductID" DataSourceID="SqlDataSource1"> <CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings> <Columns> <telerik:GridBoundColumn DataField="ProductID" DataType="System.Int32" HeaderText="ProductID" ReadOnly="True" AllowSorting="true" SortExpression="ProductID" UniqueName="ProductID" HeaderTooltip="product id tooltip"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="ProductName" HeaderText="ProductName" AllowSorting="true" SortExpression="ProductName" UniqueName="ProductName" HeaderTooltip="product name tooltip"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="CategoryName" HeaderText="CategoryName" SortExpression="CategoryName" UniqueName="CategoryName" HeaderTooltip="category name tooltip"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="UnitPrice" DataType="System.Decimal" HeaderText="UnitPrice" SortExpression="UnitPrice" UniqueName="UnitPrice" HeaderTooltip="unit price tooltip"> </telerik:GridBoundColumn> <telerik:GridBoundColumn DataField="UnitsInStock" DataType="System.Int16" HeaderText="UnitsInStock" AllowSorting="false" UniqueName="UnitsInStock" HeaderTooltip="units in stock tooltip"> </telerik:GridBoundColumn> </Columns> </MasterTableView> </telerik:RadGrid> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindConnectionString %>" SelectCommand="SELECT [ProductID], [ProductName], [CategoryName], [UnitPrice], [UnitsInStock] FROM [Alphabetical list of products]"> </asp:SqlDataSource></asp:Content>
describe the steps to replicate the error
Fatal error,
1. Add an RadRibbonBar Control and add a button and add an event handler onButtonClick
<telerik:RadRibbonBar runat=server ID="rb" onbuttonclick="kg111_ButtonClick"> <Tabs> <telerik:RibbonBarTab> <telerik:RibbonBarGroup> <Items> <telerik:RibbonBarButton Text="Hola" Value="111" /> </Items> </telerik:RibbonBarGroup> </telerik:RibbonBarTab> </Tabs> </telerik:RadRibbonBar>
2. Add an RadDatePicker Control
<telerik:RadDatePicker ID="RadDatePicker1" runat="server"> </telerik:RadDatePicker>3. compile and Run.
4. Select a date
5. place the cursor in the text box RadDatePicker control, or rather, place the focus on the control RadDatePicker
6. Immediately after the button click of RadRibbonBar (skip the error here)
Telerik Asp.net Version : Q1 2012
Test Browser: IE 9, Opera 11.64, Chrome, Etc
ERROR
Text property cannot be set. String was not recognized as a valid DateTime. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidCastException: Text property cannot be set. String was not recognized as a valid DateTime.Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidCastException: Text property cannot be set. String was not recognized as a valid DateTime.] Telerik.Web.UI.RadDateInput.RangeTextProperty(String value) +181 Telerik.Web.UI.RadDateInput.set_Text(String value) +17 Telerik.Web.UI.DatePickingInput.LoadPostData(String postDataKey, NameValueCollection postCollection) +554 Telerik.Web.UI.RadWebControl.System.Web.UI.IPostBackDataHandler.LoadPostData(String postDataKey, NameValueCollection postCollection) +13 System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) +327 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +878is necessary to comment that the control radribbonbar has many problems ... Telerik team, why they launched a control with too many errors and incomplete?

I've been stuck on this problem for a few hours now.
I need to save the value of a textbox on a form on ASPX Child Page which may contain html markup. The page also contains multiple Formviews bound to different datasources.
When I try and submit I get a "potentially dangerous request" error. I tried setting ValidateRequest="false" in the page header, but to no avail.
I assume the answer would be to strip the tags from the value before posting back to the server in javascript, but I cannot figure out a way to make the form perform a submit operation. I tried the page.submit() ; but it did nothing. And when I tried using the form control I get a javascript error stating submit is not a function.
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">... <asp:FormView ID="TwoWeekForm" runat="server" DataSourceID="TwoWeekDataSource" DataKeyNames="ID" > <ItemTemplate> ... </ItemTemplate> <EditItemTemplate> ... <asp:TextBox ID="TwoWeekText" runat="server" Text='<%# Bind("Extended") %>' TextMode="MultiLine" CssClass="KeyEvent" style="color:Black"></asp:TextBox> ... </table> </EditItemTemplate>... </asp:FormView>
<telerik:OpenAccessDataSource ID="TwoWeekDataSource" runat="server"
EnableDelete="False" EnableInsert="False"
ObjectContextProvider="CNTracker.OpenAccess.EntitiesModel, CNTracker.OpenAccess"
TypeName="CNTracker.OpenAccess.Interaction"
Where="this.Project == @Project AND this.Type == 17">
<WhereParameters>
<asp:SessionParameter DefaultValue="1" Name="Project"
SessionField="CurrentProject" />
</WhereParameters>
</telerik:OpenAccessDataSource>