Questions on UI for ASP.NET AJAX Forum

2 answers

109 views

Hi

I have a table of data the first 2 columns are Manufacturer and model as varchars.

ie
Manufacturer    Model
Man 1                Mod1
Man 1                Mod 2
Man 1                Mod 3
Man 2                Mod 4
Man 3                Mod 5

Can this be bound such that the top level of the tree shows
Man 1
Man 2
Man 3

And expaned to show the models.

I get an error saying 'This constraint cannort be enabled as not all values have a corresponding parent.
Andy

TreeView

answered on 22 May 2012

1 answer

235 views

RadComboBox datasource empty on postback

Hello,

I am assigning a radcombobox's datasource property a List(of Person) and then databinding it. I have the Autopost property set to true so when a selection is made it will post back. Unfortunately, the radcombobox's datasource property is nothing when the postback occurs. Is there something I need to do to keep the datasource from being left to nothing? Since I can't attach a zip file I am providing code snippets.

Imports Telerik.Web.UI

Imports System.Linq

Partial Class _Default

Inherits System.Web.UI.Page

Private Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load

If Not Page.IsPostBack Then

Dim people = {New Person With {.Name = "Craig", .UserId = "Wil1"}, New Person With {.Name = "Kaitlyn", .UserId = "Wil2"}, New Person With {.Name = "Ben", .UserId = "Wil3"}}.ToList

radCbo.DataTextField = "Name" : radCbo.DataValueField = "UserId"

radCbo.DataSource = people

radCbo.DataBind()

End If

End Sub

Private Sub radCbo_SelectedIndexChanged(sender As Object, e As Telerik.Web.UI.RadComboBoxSelectedIndexChangedEventArgs) Handles radCbo.SelectedIndexChanged

Dim ds = radCbo.DataSource

Dim i = radCbo.SelectedItem.DataItem

End Sub

End Class

Public Class Person

Public Property Name As String

Public Property UserId As String

End Class

<%@ Page Language="VB" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="RadControlsWebAppComboTest._Default" %>

<!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>

<telerik:RadStyleSheetManager id="RadStyleSheetManager1" runat="server" />

</head>

<body>

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

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

<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>

<script type="text/javascript">

//Put your JavaScript code here.

</script>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

</telerik:RadAjaxManager>

<div>

<telerik:RadComboBox runat="server" ID="radCbo" AutoPostBack="true" EnableViewState="true"></telerik:RadComboBox>

</div>

</form>

</body>

</html

ComboBox

answered on 22 May 2012

1 answer

77 views

GridView alternating row color

Hi,

How to apply alternating row color using FormDecorator? I am using asp.net gridview with FormDecorator.

Thanks

FormDecorator

answered on 22 May 2012

1 answer

103 views

RadProgressArea Header Text

I'm trying to update the headertext to include the primary percent complete, but the text never updates even after a postback?

Upload (Obsolete)

answered on 22 May 2012

1 answer

81 views

Webservice binding. Serious problem with multiple simultaneous server requests

hi,

we are using the ajax scheduler in an mvc project. Looking great, good functionality, all that.
But we are encountering a serious problem.

The scheduler requires web service binding to work in an mvc page. Appointments are fed by the web service. Collecting appointments takes some time delving through the database.

All goes well until the web-service receives a request from another user requesting for appointments while it is still working on collecting appointments for the first user. The result is that the second user will receive both the appointments for the first user and her own appointments. Which is in a multi user scenario with high demands on privacy of course absolutely inappropriate.

This scenario takes some effort to reproduce. We found the proof by adding one "debug" appointment in the GetAppointments implementation of the service. The appointment was labeled with the requesting users identification. I case of heavy load an appointment mix containing two different "debug" appoints show up in the web page. Ruling out any bugs in our appointment collecting.

At the moment I'm studying on a workaround where the OnPopulating scheduler script event will make an ajaxcall to the service to raise a Mutex. The mutex will be lowered in get appointments. Quite a freaky way to solve things, provided it will even work. For now I don't see an alternative yet.

Any help is greatly appreciated.

kind regards

Peter

Scheduler

answered on 22 May 2012

3 answers

547 views

filter in grid failing to capture special characters < > =

Hi,

I'm working w/ the radgrid. The grid has a column that contains special characters such as

'< 5 MMBtu'
'>130hp'

during filtering, the grid will fail to filter any values that contain '>', '<', and '='

...I'm using the filter clause 'Contains', 'Starts with', 'Equal to'

please advise.

thanks,
Minh Bui

Grid

answered on 22 May 2012

1 answer

702 views

Clear text-box value on button click

Hai,
I have a radgrid where filtering is enabled. I have added a button in the commanditemtemplate and tried to clear the filtered textbox value on the button click but its not working. Can anybody suggest where i went wrong and come up with some idea to implement this effectively.
Ryan

Grid

answered on 22 May 2012

3 answers

106 views

Graph Center

How to center the Chart into my PloatArea? I try

radChart1.PloatArea.Appearence.Position.AlignedPosition = Telerik.Charting.Styles.AlignedPositions.Center;

This way don't work.

Chart (Obsolete)

answered on 22 May 2012

1 answer

79 views

using jplayer in radeditor

hi ,

i want to use jplayer as the default media player for the media Manager ,
what is the best approach to do so ?

1. using filter .
2. customize the built-in manager Dialog .
3. is there a better way?

thanks
ido

Editor

answered on 22 May 2012

1 answer

113 views

AllowColumnsReorder and Insert

Hello,
I was on Telerik's site looking at some demos of the TreeList when I saw, under the "What's New" section, the ability to reorder columns. I decided to build a test and see how this new functionality worked when I stumbled across a problem. If I enable reordering (i.e. AllowColumnsReorder = "true") I cannot insert a root level node (insert template appears but I can't type in any textboxes). I say stumble because I can add items at any other level without issue. I took my testing a step further and realized that when using the built-in "In-line editing mode" I can reorder columns while the insert template is displayed. Not that I was necessarily looking for this, but I noticed that the associated editors (ex. textbox) does not follow the reordered columns. I went ahead and added a button to my page which, server side, toggles the reorder properties of the treelist. If I toggle the reorder properties to false I can insert without issue.

My question, how do I insert a root node when reordering is enabled? Should/can I toggle the reorder properties client side when an insert or edit mode is entered?

TreeList

answered on 22 May 2012