Questions on UI for ASP.NET AJAX Forum

5 answers

196 views

Hi,

I'm creating a control dynamically with a lot of child controls (ex dropdownlists).

    
            DropDownListControl ddlControl = (DropDownListControl)this.LoadControl("FormControls/DropDownListControl.ascx");  
        
            ddlControl.ID = "ddlControl_" + groupTable.Rows.Count + "_" + columnIndex;  
        
            RadAjaxManager.GetCurrent(Page).AjaxSettings.AddAjaxSetting(this, ddlControl);

With that last sentence I thougth the update the dynamic created dropdownlists if the parent usercontrol (this) was changed.

When I run this code and change the parent usercontrol he gives me the following exception:
Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'ctl00_ddlControl_1_0Panel'. If it is being updated dynamically then it must be inside another UpdatePanel.

Can anyone tell me how I have to solve this without losing the creation of the dynamic child controls?

Thanks
Bert

Ajax

answered on 25 Feb 2011

2 answers

125 views

OnClick not fired with Entity/LINQ DataSource

Hey Telerik

I have big problems using my Entity datasource with my TreeView.
Everything is shown just fine, but can't get OnNodeClick event to fire.

Please advise !!

Thanks
Jan

<telerik:RadTreeView runat="Server" ID="BookGroupTreeView" DataFieldID="Hierarchy_id"

DataFieldParentID="Parent_Hierarchy_id" DataTextField="Name" DataValueField="Hierarchy_id"

Skin="Vista" EnableTheming="True" RegisterWithScriptManager="true" OnNodeClick="BookGroupTreeView_NodeClick">

</telerik:RadTreeView>

protected void Page_Load(object sender, EventArgs e)

{

List<DB.Hierarchy> bookHierarchy = new List<DB.Hierarchy>();

bookHierarchy = DB.HierarchyService.HierarchyFullListFromParentPath("Root");

BookGroupTreeView.DataSource = bookHierarchy;

BookGroupTreeView.DataBind();

BookGroupTreeView.ExpandAllNodes();

}

TreeView

answered on 25 Feb 2011

3 answers

453 views

RadAsyncUpload problems of Production

I created my page and add a control RadAsyncUpload to post a picture, everythingworks perfectly in development, totally perfect, but when I post on my hosting does not work

select the photo and then fails, all settings are fine, and apply security permissions,and lists web.config settings, I find to do! what configuration should I

In my hosting no found, in localhost yes!

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

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!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 runat="server" ID="RadScriptManager1">

</telerik:RadScriptManager>

<asp:UpdatePanel runat="server" ID="UpdatePanel1">

<ContentTemplate>

<telerik:RadSplitter runat="server" ID="RadSplitter1">

<telerik:RadPane runat="server" ID="Pane1">

<telerik:RadAsyncUpload ID="radUpload1" runat="server" MaxFileInputsCount="1" InitialFileInputsCount="1"

Localization-Select="Browse" Width="300px">

</telerik:RadAsyncUpload>

</telerik:RadPane>

</telerik:RadSplitter>

</ContentTemplate>

</asp:UpdatePanel>

</form>

</body>

</html>

This is web.config

<?xml version="1.0"?>

<!--

Note: As an alternative to hand editing this file you can use the

web admin tool to configure settings for your application. Use

the Website->Asp.Net Configuration option in Visual Studio.

A full list of settings and comments can be found in

machine.config.comments usually located in

\Windows\Microsoft.Net\Framework\v2.x\Config

-->

<configuration>

<configSections>

<sectionGroup name="system.web.extensions" type=

"System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

>

<sectionGroup name="scripting" type=

"System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

>

<section name="scriptResourceHandler" type=

"System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

requirePermission="false" allowDefinition="MachineToApplication"/>

<sectionGroup name="webServices" type=

"System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

>

<section name="jsonSerialization" type=

"System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

requirePermission="false" allowDefinition="Everywhere"/>

<section name="profileService" type=

"System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

requirePermission="false" allowDefinition="MachineToApplication"/>

<section name="authenticationService" type=

"System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

requirePermission="false" allowDefinition="MachineToApplication"/>

<section name="roleService" type=

"System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

requirePermission="false" allowDefinition="MachineToApplication"/>

</sectionGroup>

</configSections>

<appSettings>

<add key="AllowCustomProgress" value="false"/>

</appSettings>

<connectionStrings/>

<system.web>

<!--

Set compilation debug="true" to insert debugging

symbols into the compiled page. Because this

affects performance, set this value to true only

during development.

-->

<!--

Set compilation debug="true" to insert debugging

symbols into the compiled page. Because this

affects performance, set this value to true only

during development.

-->

<compilation debug="true">

<assemblies>

<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

<add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>

<add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>

<add assembly="System.Web.Extensions.Design, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/></assemblies>

</compilation>

<!--

The <authentication> section enables configuration

of the security authentication mode used by

ASP.NET to identify an incoming user.

-->

<!--

The <authentication> section enables configuration

of the security authentication mode used by

ASP.NET to identify an incoming user.

-->

<authentication mode="None"/>

<!--

The <customErrors> section enables configuration

of what to do if/when an unhandled error occurs

during the execution of a request. Specifically,

it enables developers to configure html error pages

to be displayed in place of a error stack trace.

<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">

<error statusCode="403" redirect="NoAccess.htm" />

<error statusCode="404" redirect="FileNotFound.htm" />

</customErrors>

-->

<pages>

<controls>

<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>

<add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI"/>

</controls>

</pages>

<httpRuntime maxRequestLength="1024000" executionTimeout="4800"/>

<!--

The <customErrors> section enables configuration

of what to do if/when an unhandled error occurs

during the execution of a request. Specifically,

it enables developers to configure html error pages

to be displayed in place of a error stack trace.

<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">

<error statusCode="403" redirect="NoAccess.htm" />

<error statusCode="404" redirect="FileNotFound.htm" />

</customErrors>

-->

<httpHandlers>

<add verb="*" path="*.asmx" validate="false" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add verb="*" path="*_AppService.axd" validate="false" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add verb="GET,HEAD" path="ScriptResource.axd" type=

"System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

validate="false"/>

<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false"/>

<add path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" validate="false"/>

</httpHandlers>

<httpModules>

<add name="ScriptModule" type=

"System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

</httpModules>

</system.web>

<system.codedom>

<compilers>

<compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

<providerOption name="CompilerVersion" value="v3.5"/>

<providerOption name="WarnAsError" value="false"/>

</compiler>

<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">

<providerOption name="CompilerVersion" value="v3.5"/>

<providerOption name="OptionInfer" value="true"/>

<providerOption name="WarnAsError" value="false"/>

</compiler>

</compilers>

</system.codedom>

<!--

The system.webServer section is required for running ASP.NET AJAX under Internet

Information Services 7.0. It is not necessary for previous version of IIS.

-->

<system.webServer>

<security>

<requestFiltering>

<requestLimits maxAllowedContentLength="">

</requestLimits></requestFiltering>

</security>

<validation validateIntegratedModeConfiguration="false"/>

<modules>

<add name="RadUploadModule" type="Telerik.Web.UI.RadUploadHttpModule" preCondition="integratedMode"/>

</modules>

<handlers>

<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type=

"System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type=

"System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"

/>

<add name="Telerik_Web_UI_WebResource_axd" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" preCondition="integratedMode"/>

<add name="Telerik_RadUploadProgressHandler_ashx" path="Telerik.RadUploadProgressHandler.ashx" type="Telerik.Web.UI.RadUploadProgressHandler" verb="*" preCondition="integratedMode"/>

</handlers>

</system.webServer>

<runtime>

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

<dependentAssembly>

<assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35"/>

<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>

</dependentAssembly>

<dependentAssembly>

<assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/>

<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>

</dependentAssembly>

</assemblyBinding>

</runtime>

<location path="Telerik.Web.UI.WebResource.axd">

<system.web>

<authorization>

<allow users="*" />

</authorization>

</system.web>

</location>

</configuration>

AsyncUpload

answered on 25 Feb 2011

2 answers

311 views

[Solved] ListBox Remove Items

Can someone post how to remove all items from a RadListBox? This below code in the cs file doesn't work.

foreach (RadListBoxItem item in RadListBox1.Items)

{

item.Remove();

//RadListBox1.Items.Remove(item);

}

My (hopefully temporary) workaround for this is that I create an empty DataSet and rebind that to the RadListBox.

ListBox

answered on 25 Feb 2011

2 answers

99 views

[Solved] Calling Javascript After RowDrop

We're using the Grid_RowDrop EventHandler to perform a few operations after a row is dropped from one grid to another. The only issue we've run into is that we need to dynamically change some text outside of the two grids after the drop occurs. One possible way to do this would be with some Javascript, but while it's easy to call Javascript before the drop finishes with OnRowDropping and OnRowDropped, I can't find a way to call Javascript after the Grid_RowDrop EventHandler completes. If there's a way to do this, it would be great to know.

On the other hand, if it's better to update this text from within the Grid_RowDrop EventHandler itself by putting the text in a control (RadAjaxPanel maybe?), that would work too. We'd appreciate some advice either way on the best solution to this problem. Thanks.

Grid

answered on 25 Feb 2011

3 answers

137 views

Cell Drag and Drop

Hello,

Can you drag and drop values of 1 cell to another cell in the same row using the grid?

Any help appreciated. Thanks in advance.

Grid

answered on 25 Feb 2011

3 answers

167 views

configure XAxis.LabelStep at runtime

Hello,

I have a chart that display a series of data across a date range. There are 24 data points per day. Sometimes we are displaying 30 days, sometimes we are displaying many more days. Obviously this is to many labels to display. I would liket there to always be about 30 labels no matter how many days worth of data I am sidplaying. I understand the only way to do this is by using the LabelStep property. I would like to set the label step property at runtime based on the number of data points that are in the chart.

I add the labels through the PlotArea.XAxis.AddRange method. The series is bound to the SQL datasource. In the chart_ItemDataBound event I get the number of datapoints and try to set the LabelStep property as shown below. However, no matter what I try the labelstep property that I set at runtime is not used and rather is uses the value set as designtime.

private void chart_ItemDataBound(object sender, EventArgs e)

{

//get handles

Telerik.Reporting.Processing.Chart ProcessingChart = (Telerik.Reporting.Processing.Chart)sender;

Telerik.Reporting.Chart ChartDefinition = (Telerik.Reporting.Chart)ProcessingChart.ItemDefinition;

//get the number of datapoints

int iDataPoints = ChartDefinition.Series[0].Items.Count;

if (iDataPoints > 0)

{

//setting the labelstep on chart defination object from the processing chart

ChartDefinition.PlotArea.XAxis.LabelStep = iDataPoints / 30;

//also have tried setting setting the labelstep on actual chart object

chart.PlotArea.XAxis.LabelStep = iDataPoints / 30;

}

Why is the chart not using the labelstep property that I set at runtime?

Thanks,

Chris

Chart (Obsolete)

answered on 25 Feb 2011

2 answers

204 views

[Solved] Aggregate Calculated From Other Aggregates

I searched but couldn't find an answer, so I'm hoping someone can point me in the right direction.

If I have a grid with 5 columns:

Client Name
Fees 1
Fees 2
Discount
Percentage

Discount is the difference between Fees1 and Fees2 (Fees1 - Fees2). Percentage is Fees1/Fees2. The grid has aggregates for the Fees 1 column, Fees 2 column, and Discount column (these are all Sums). Doing a Sum or Average on the Percentage column will not give me the right number...what I need to do is take the Sum(Fees1)/Sum(Fees2) to get the Average Percentage...

So, is there a way to show an aggregate value for a column (the Average Percentage) that is calculated from the aggregates of other columns?

Thanks
Tye

Grid

answered on 25 Feb 2011

2 answers

165 views

Resize iFrame in Panel

Hi,

To sum it up: I am trying to resize an iFrame on a RadPane to fit 100% height.

The Scenario: My project is based on the Webmail demo, but in the bottom Pane I want to have an iFrame which correctly resizes then the Splitter is dragged.

I tried to add a client side Javascript block of code on the OnClientResized event of the RadPane, but it does not seem to be triggered and thereby resizing the iFrame.

I don't know if it would be easier to use the ContentURL property to use the RadPane as an iFrame, but do not know how to amend the demo to use a datasource to get the URL as I currently use the same DetailsView as in the demo to effect the iFrame src property. When I set the ContentURL at design time then the Grid does not render any details.

Sorry, but this is my first attempt at using the Telerik AJAX controls.

Regards,
Ray

Splitter

answered on 25 Feb 2011

1 answer

131 views

Uploading different file types in Document Uploader

Hi, I have a Rad Editor that has the document manager to allow the user to upload documents to the server. Now it only allows files with the extension .txt, .pdf, .doc. I would like to also allow it to upload files with other extensions such as .ppt, .zip, .xlsm etc. Is there a way I can do this?

Thanks!

Editor

answered on 25 Feb 2011