Questions on UI for ASP.NET AJAX Forum

4 answers

108 views

Hi,
I'm having Microsoft JScript runtime error: Unable to get value of the property 'PageRequestManager': object is null or undefined when ever page is loaded. I can no longer clicked on the dropdown whenever I continue with the page.
It throws error on this line on Telerik.Web.UI.We.....[dynamic] -->

window[Sys.WebForms.PageRequestManager.getInstance()._uniqueIDToClientID(this._uniqueID)]=this;

Ajax

answered on 02 Nov 2012

1 answer

370 views

Viewstate and DatePicker OnSelectedDateChanged event

Hello,

I was wondering why the following is happening. I have a page with a DatePicker. I set the OnSelectedDateChanged event. All works fine. Autopostback is also set. A grid then gets rebound (calling grid.rebind in datechange event) to reflect new date range selection. Now I have a button on the form, which then triggers an action based on the selected items in the grid. All works fine when viewstate is enabled for both datepicker and grid.

But when I set the EnableViewState to false for the datepicker, all goes wrong. Because the viewstate on the datepicker is turned off, the OnSelectedDateChanged is not just fired when the date changes, but also when I click the button, or trigger any other server side event. This cause the grid to be rebound and my SelectedItems count is then zero.

Is this normal behavior and my understanding of viewstate is too limited? Since I dont need viewstate on datepicker just to rebind grid to correct date, I would prefer to leave viewstate off.

Example page to see the OnSelectedDateChanged event getting fired when viewstate is disabled on the datepicker and you trigger another event: (just enable viewstate on datepicker to see that event doesnt get triggered then if button is clicked)

ASPX:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Test" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server" EnableScriptCombine="true"

OutputCompression="Forced" ScriptMode="Release">

<Scripts>

<%--Needed for JavaScript IntelliSense in VS2010--%>

<%--For VS2008 replace RadScriptManager with ScriptManager--%>

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />

</Scripts>

</telerik:RadScriptManager>

<div>

<asp:Button runat="server" ID="btnSelect" Text="Select" OnClick="btnSelect_Click" />

<telerik:RadDatePicker ID="dp4" runat="server" MinDate="2006-01-01" AutoPostBack="True" OnSelectedDateChanged="dp4_Changed"

Width="100px" EnableViewState="False">

<Calendar ID="cal1" runat="server" />

<DateInput ID="dip1" runat="server">

</DateInput>

</telerik:RadDatePicker>

</div>

</form>

</body>

</html>

Code-behind:

using System;

using Telerik.Web.UI.Calendar;

public partial class Test : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void btnSelect_Click(object sender, EventArgs e)

{

}

protected void dp4_Changed(object sender, SelectedDateChangedEventArgs e)

{

//set breakpoint

string x = "";

}

Calendar

answered on 02 Nov 2012

3 answers

199 views

ToString and DateTime.Parse not supported by Entity Framework

I am having big issues with RadFilter and getting it to produce the right expressions against Entity Framework DBContext.

It produces expressions that are not supported in EF.

E.g. Expression Preview is (TransDate > '10-20-2014 12:00:00')
Translates to (TransDate > DateTime.Parse('10-20-2014 12:00:00'))

Results in EF error "function DateTime.Parse is not supported... etc."

Same for String comparsions. and anywhere that ToString output by the RadFilter.

How can I get the expressions to be EF compatible???? I have tried the EnitySql Provider but this is not SQL. Also tried the DynamicLinq but that outputs the same as the default.

Thanks

Filter

answered on 02 Nov 2012

1 answer

64 views

Write Custom QueryProvider

I would love to use RadFilter but it does not support OData. is there a chance I could write my own provider (to output $filter format expressions)

Has anyone done this?

Any guidance would be useful. The control is great and enabled advanced search scenarios.

Filter

answered on 02 Nov 2012

2 answers

70 views

GridHtmlEditorColumn background colour

I am using this editor column, and it is inheriting the page css. This is OK except that I want to over-ride the
background color so that the text area has a plain white background. Just setting the item background color property does not seem to do it.
I am sure I am missing something simple! Please help!

Thanks

Clive

Editor

answered on 02 Nov 2012

4 answers

150 views

How to resolve extra spacing issues within RadUpload Control

Hi Telerik Support !

Firstly, I would like to thank you for all your dedicated co-operation for my problems.

This time aroud I got stuck with RadUpload Control. Actually what I need to achieve is that I want to increase the width of RadUpload in such as way that its REMOVE button contines to stay intact with it (which happens only when I have RadUpload width set t0 less that 40 px, but when I try to increase its width it [Remove Button] gets along in other line.) .

Please see the attachment.

Also, I want to decrease the gap between ADD BUTTON & RadUpload control. How can I do this ?

Thanks for your help & please help with this problem.

Ajay

Upload (Obsolete)

answered on 02 Nov 2012

1 answer

88 views

Popup Reminder Window

Since i search for Reminder Window functionality i found popup Reminder Window only use in RadScheduler control.

I want to use Reminder window independently without having Radscheduler Control. so do we have some way to access it?

In my web application, i want to pop up reminder window with respect to System time.

Thanks,
Applied Hcs

General Discussions

answered on 02 Nov 2012

4 answers

98 views

Change the pagesizecombo and make the pager always visiible only when the record is greater than 10

I have tried this function to implement the changes but the problem is
since it is a itemdatabound it will make lot of round trips to set this behaviour which is equal to number of the rows created i guess.
But this property has to be set at one time only. so is there a correct method or event that can make this thing happen with better performance rather than for each itemdatabound.

Also how to make the pager visible always when there are items more than 10.
now if i set it alwaysvisible = true then it displays the pager even there are no10 records.

I am looking a way to make the pager visible always only after 10. then even the page set is 100 and the rows present are 14 the pager should be still availiable so that user doesn't have to refresh the pager to see the default pager settings again.

Any help will be highly appreciated. Please....

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridPagerItem)

{

RadComboBox PageSizeCombo = (RadComboBox)e.Item.FindControl("PageSizeComboBox");

PageSizeCombo.Items.Clear();

PageSizeCombo.Items.Add(new RadComboBoxItem("15"));

PageSizeCombo.FindItemByText("15").Attributes.Add("ownerTableViewId", RadGrid1.MasterTableView.ClientID);

PageSizeCombo.Items.Add(new RadComboBoxItem("50"));

PageSizeCombo.FindItemByText("50").Attributes.Add("ownerTableViewId", RadGrid1.MasterTableView.ClientID);

PageSizeCombo.Items.Add(new RadComboBoxItem("150"));

PageSizeCombo.FindItemByText("150").Attributes.Add("ownerTableViewId", RadGrid1.MasterTableView.ClientID);

PageSizeCombo.Items.Add(new RadComboBoxItem("250"));

PageSizeCombo.FindItemByText("250").Attributes.Add("ownerTableViewId", RadGrid1.MasterTableView.ClientID);

PageSizeCombo.FindItemByText(e.Item.OwnerTableView.PageSize.ToString()).Selected = true;

}

Grid

answered on 02 Nov 2012

3 answers

242 views

RadButton w/ UpdateProgress

I am looking for a way to use the ASP Update Progress component with a RadButton with an image. I'd like to have a static image and then a loading gif when clicked to give the user an indication that data processing is being done. Is there any relatively simple way to intergrate the RadButton and the Update Progress control?

Button

answered on 02 Nov 2012

0 answers

93 views

RadMonthYearPicker to load from external assembly

Remove this thread.

General Discussions

asked on 02 Nov 2012