Questions on UI for ASP.NET AJAX Forum

1 answer

134 views

Error : exception has been thrown by the target of an invocation

Hi.
I added telerik radmenu on my website project and i want to build Radmenu.
when i go on radmenu smart tag and select "Build Radmenu" i see this error : "exception has been thrown by the target of an invocation"
But in the Source page i writing this codes(for example):

<telerik:RadMenu ID="RadMenu1" Runat="server"
        EnableTheming="True" style="top: 0px; left: 0px"
        onitemclick="RadMenu1_ItemClick">
       <Items>
                <telerik:RadMenuItem Text="Products" Value="1" ExpandMode="WebService">

                </telerik:RadMenuItem>
                <telerik:RadMenuItem Text="Purchase" Value="132" ExpandMode="WebService">
                </telerik:RadMenuItem>
                <telerik:RadMenuItem Text="Support" Value="141" ExpandMode="WebService">
                </telerik:RadMenuItem>
                <telerik:RadMenuItem Text="Community" Value="155" ExpandMode="WebService">
                </telerik:RadMenuItem>
                <telerik:RadMenuItem Text="Corporate" Value="164" ExpandMode="WebService">
                </telerik:RadMenuItem>
            </Items>
    </telerik:RadMenu>
----------------------------------------------------------------------------------------------------------------------------------------------
after this codes when i go back on Design page i see Radmenu items Builded . but i dont want to write the codes, i want when i select
Build Radmenu on smart tag , show me the window item collection to build items and childitems. as like Getting started menu on help radmenu.
so please help me , is it a bug or something like this ? or the problem is my Visual studio ?

General Discussions

answered on 06 Mar 2012

1 answer

166 views

Help with invalid radTextBox

Hello everybody,
Heres my question, when a email field for example(with a expression regular) is invalid, i want appears the alert icon.
In a different way to tell, i want this alert icon(error) appears every time a field doesnt pass in a validation(being a expressiion regular or not).

How can i do that?
thnkz in advance

<td>

<telerik:RadTextBox ID="txtEmail" runat="server">

</telerik:RadTextBox>

<asp:RegularExpressionValidator ID="emailValidator" runat="server" Display="Dynamic"

ErrorMessage="*Email inválido!" CssClass="erro" ValidationExpression="^[\w\.\-]+@[a-zA-Z0-9\-]+(\.[a-zA-Z0-9\-]{1,})*(\.[a-zA-Z]{2,3}){1,2}$"

ControlToValidate="txtEmail">

</asp:RegularExpressionValidator>

<asp:RequiredFieldValidator ID="Requiredfieldvalidator1" runat="server" Display="Dynamic"

ControlToValidate="txtEmail" CssClass="erro" ErrorMessage="*Digite um Email!" />

</td>

General Discussions

answered on 06 Mar 2012

4 answers

161 views

_events is null

We have a Problem with a RadWindow on RadAjaxPanel

On our Masterpage we have:

<div id="paneInhalt" style="float: left; width: 2000px; border-left: solid 2px silver;

overflow: auto; visibility: hidden">

<telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1">

</telerik:RadAjaxLoadingPanel>

<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" LoadingPanelID="RadAjaxLoadingPanel1">

<asp:ContentPlaceHolder ID="cphHauptInhalt" runat="server">

</asp:ContentPlaceHolder>

</telerik:RadAjaxPanel>

</div>

And on a usercontrol in content:

<telerik:RadWindow runat="server" ID="pnlBearbeiten" Overlay="true" VisibleStatusbar="false"

Modal="true" Height="600" Width="950" KeepInScreenBounds="True" VisibleTitlebar="False">

<ContentTemplate>

<uc3:EBetriebeAuswahl ID="etlFilialen" runat="server" />

<br />

<div style="float: right">

<telerik:RadButton runat="server" ID="btnAbbrechen" Text="Abbrechen" AutoPostBack="False"

OnClientClicked="HideAbnehmerauswahl">

<Icon PrimaryIconCssClass="rbCancel" />

</telerik:RadButton>

<telerik:RadButton runat="server" ID="btnSave" OnClientClicking="disableCheckSave"

Text="Speichern" OnClick="btnSpeichern_Clicked">

<Icon PrimaryIconCssClass="rbSave" />

</telerik:RadButton>

</div>

<p style="clear: both" />

</ContentTemplate>

</telerik:RadWindow>

When the usercontrol is loaded, I get an error: "Error: '_events' is Null or not an Object".

If the page is loaded without this control, the error didn't occure, the same if i remove the window.

In some posts I have read about the problem is beeing fixed in Version 2010.1.??? But we are using 2011.1.315.35 and the problem exists.

How can I fix this?

Window

answered on 06 Mar 2012

3 answers

137 views

Context Menu Problem

Hi,

I am using Telerik ASP.NET Ajax controls since 2006 release, My current release is Q1 2012, for the context menu on RadGrid item is working but the menu is displayed on the top of the page as attached here in the image menu2.png. This case was working fine with the same code in the 2011 release before upgrading as attached in the image menu1.png . So, This case is not working fine after replacing the release 2011 with 2012.

Please advise ASAP.

Thanks

Ajax

answered on 06 Mar 2012

6 answers

115 views

auto postbak rate value to template grid

not in

protected

void Button1_Click(object sender, EventArgs e)

{

foreach (GridViewRow row in GridView1.Rows)

{

RadRating ratg = (RadRating)row.FindControl("RadRating1");

}

}

-------------



me auto postbak rate value to grid ?

rate value for template gird

on postbak save to database

Rating

answered on 06 Mar 2012

1 answer

128 views

WCF - The server method 'LoadClients' failed

I followed the below tutorial link to populate a RadComboBox using WCF service.
This works fine on localhost but when I deploy it on the server I'm getting an error "The server method 'LoadClients' failed" whenever this service is called.

http://www.telerik.com/help/aspnet-ajax/combobox-load-on-demand-wcf-service.html

WebConfig:

<system.serviceModel>

<behaviors>

<endpointBehaviors>

<behavior name="WCFClientsAspNetAjaxBehavior">

<enableWebScript/>

</behavior>

</endpointBehaviors>

</behaviors>

<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>

<services>

<service name="WCFClients">

<endpoint address="" behaviorConfiguration="WCFClientsAspNetAjaxBehavior" binding="webHttpBinding" contract="WCFClients"/>

</service>

</services>

<bindings>

<webHttpBinding>

<binding name="webBinding">

<security mode="Transport">

</security>

</binding>

</webHttpBinding>

WCFClients.svc:

<OperationContract()> _

Public Function LoadClients(ByVal context As RadComboBoxContext) As RadComboBoxData

'The RadComboBoxData object contains all required information for load on demand:

' - the items

' - are there more items in case of paging

' - status message to be displayed (which is optional)

Dim result As New RadComboBoxData()

' Dim connectionStr As String = Current.Session("ConnectionString").ToString

Dim connectionStr As String = "MyConnectionString"

Dim TransMgr As New TransmgrClientsDataContext(connectionStr)

'Get all items from the Customers table. This query will not be executed untill the ToArray method is called.

Dim allCustomers = From c In TransMgr.Clients _

Order By c.LastNm _

Select customer = New RadComboBoxItemData With _

{.Text = c.LastNm & " " & c.FirstNm, .Value = Convert.ToString(c.Clnt_No)}

'In case the user typed something - filter the result set

If Not [String].IsNullOrEmpty(context.Text) Then

allCustomers = allCustomers.Where(Function(item) item.Text.StartsWith(context.Text))

End If

'Perform the paging

' - first skip the amount of items already populated

' - take the next 10 items

Dim customers = allCustomers.Skip(context.NumberOfItems).Take(10)

'This will execute the database query and return the data as an array of RadComboBoxItemData objects

result.Items = customers.ToArray()

Dim endOffset As Integer = context.NumberOfItems + customers.Count()

Dim totalCount As Integer = allCustomers.Count()

'Check if all items are populated (this is the last page)

If endOffset = totalCount Then

result.EndOfItems = True

End If

'Initialize the status message

result.Message = [String].Format("Items <b>1</b>-<b>{0}</b> out of <b>{1}</b>", endOffset, totalCount)

Return result

End Function

aspx:

<script type ="text/javascript" >

function validateCombo(source, args) {

args.IsValid = false;

var combo = $find(source.controltovalidate);

var selectedItem = combo.get_selectedItem();

if (selectedItem) {

var value = selectedItem.get_value();

if (value > 0) {

args.IsValid = true;

}

</script>

<telerik:RadComboBox runat="server" ID="rcbClients" Height="100px" EnableLoadOnDemand="true"

ShowMoreResultsBox="true" EnableVirtualScrolling="true" AllowCustomText="false"

EmptyMessage="Type lastname ...">

<WebServiceSettings Path="WCFClients.svc" Method="LoadClients" />

</telerik:RadComboBox>

<asp:CustomValidator ID="cvClients" runat="server" ClientValidationFunction="validateCombo"

SetFocusOnError="true" ErrorMessage="Please select a client from Dropdown" ControlToValidate="rcbClients">*

</asp:CustomValidator>

Thank you for your help!!

ComboBox

answered on 06 Mar 2012

2 answers

62 views

Design problem in Telerik 2011 ...

Hi,

Initially, My Application referenced with Telerik 2008 version and It accessed custom themes from the

App_themes folder. It was working fine. Now, I have updated the telerik version 2011. I am surprised to see that all my css

are not working properly. Application Design failed in all radcontrols like RadGrid,RadTreeview etc.,

I have read documentation in the below url,

http://www.telerik.com/help/aspnet-ajax/grid-appearance-creating-new-skins.html

For RadGrid Design, I did the following,

I have changed some class names in the custom.css file.

.RadGrid to .RadGrid_Office2007 and .MasterTable_2007 to .rgMasterTable.

After changing this, I have got some decent alignment of this grid. But, I am not able

to retain the original design. I have both the versions (Telerik) of this application,

not able to fix up the design problem exists in the latest version (2011).

Please see the screenshot attached herewith.

Please do the needful.

Thanks,

V. Raguraman.

SkinManager

answered on 06 Mar 2012

2 answers

150 views

Single Column In DetailsTable

I am working with version 2011.3.1305.35 of the RadGrid. I have a wide grid with 19 columns. There is an additional field I need to add that contains comments, which by its self can be 1000 characters long. If I add that column to the end of the grid most of the data is cut off. What I want to do now is put that comments column in a details table so the user can click the expand icon and view the comments. I think I have it set up correctly however, there is code in the ItemCreated event that tries to run when the expand icon is clicked. What is the best way to determine if the item being created is part of the details table?

Here is how I have the set grid setup:

<telerik:RadGrid ID="tGrid" runat="server" AllowPaging="True" AllowCustomPaging="true"

PageSize="500" AllowSorting="True" AutoGenerateColumns="False" CellSpacing="0"

OnNeedDataSource="tGrid_NeedDataSource" AllowMultiRowSelection="true" OnItemCreated="tGrid_ItemCreated"

OnDataBound="tGrid_DataBound">

<PagerStyle AlwaysVisible="True" Position="Top" />

<MasterTableView Width="100%" DataKeyNames="schedID" ClientDataKeyNames="schedID">

<Columns> .... </Columns>

<DetailTables>

<telerik:GridTableView AdditionalDataFieldNames="schedComments" DataKeyNames="SchedID">

<Columns>

<telerik:GridBoundColumn DataField="schedComments" Display="true" UniqueName="schedComments"

SortExpression="schedComments">

<HeaderStyle Width="100%"></HeaderStyle>

<ItemStyle Wrap="true" />

</telerik:GridBoundColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

</MasterTableView>

</telerik:RadGrid>

Grid

answered on 06 Mar 2012

2 answers

74 views

Strange apparence of a Window ( bug? )

Greetings,

I'm trying to open an a

<script type="text/javascript">

function openRadWin() {

radopen("Creation_Incident_Details.aspx","RadWindow1");

}

</script>

<asp:ImageButton ID="ImageButton8" runat="server" ImageUrl="~/img/dupliquer.jpg"

CommandArgument='<%# Eval("idFamille") %>' ToolTip='<%# Eval("nomFamille") %>' OnClientClick="openRadWin(); return false;" />

<telerik:RadWindowManager ID="RadWindowManager1" runat="server" EnableShadow="true">

<Windows>

<telerik:RadWindow

id="RadWindow1"

runat="server"

width="400px"

height="400px"

title="Telerik RadWindow">

</telerik:RadWindow>

</Windows>

</telerik:RadWindowManager>

The problem is my window appears with a huge bug: ( see attached file )

Please note i get this bug with all the browsers i'm using.
Do you know where this might come from ?

thank you in advance

Window

answered on 06 Mar 2012

1 answer

73 views

RadEditor

The docs seem to be missing the classes EditorToolBaseCollection and EditorToolBase.

--
Stuart

Documentation and Tutorials

answered on 06 Mar 2012