Questions on UI for ASP.NET AJAX Forum

6 answers

516 views

Hello,

I've got a problem with filtering multiple columns in a RadGrid. The RadGrid code is shown below. Basically, the RadGrid below sets the CurrentFilterFunction property to default value, which is what we want. The issue is if a user changes the default filter function on multiple columns and attempts to filter based on those columns, it doesn't work because the first column filter that was changed will reset to the default CurrentFilterFunction value when the page posts back. Is there a way to save both filter function changes and allow the user to filter on multiple columns that way?

<telerik:RadGrid ID="TasksGrid" runat="server" >

<MasterTableView>

<Columns>

<telerik:GridBoundColumn DataField="TaskID" HeaderStyle-Width="95" ItemStyle-Width="95" HeaderText="Task ID" SortExpression="TaskID" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn>

<GridRadComboFilter:GridRadComboFilter DataField="FlagID" HeaderText="Flag" SortExpression="FlagID" HeaderStyle-HorizontalAlign="Center" HeaderStyle-Width="50" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="50" />

<telerik:GridBoundColumn DataField="AssignedTo" HeaderText="Assigned To" SortExpression="AssignedTo" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Site" HeaderText="Site" SortExpression="Site" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Product" HeaderText="Product" SortExpression="Product" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn >

<telerik:GridBoundColumn DataField="SupportType" HeaderText="Support Type" SortExpression="SupportType" CurrentFilterFunction="Contains" AutoPostBackOnFilter="true"></telerik:GridBoundColumn >

<telerik:GridBoundColumn DataField="Issue" HeaderText="Reported Issue" SortExpression="Issue" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn >

<telerik:GridBoundColumn DataField="LastUpdatedText" HeaderText="Last Updated Text" SortExpression="LastUpdatedText" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn >

<telerik:GridDateTimeColumn FilterControlWidth="110px" DataField="LastUpdatedDate" SortExpression="LastUpdatedDate" HeaderText="Last Updated Date" PickerType="DatePicker" DataFormatString="{0:d}" DataType="System.DateTime"></telerik:GridDateTimeColumn>

<telerik:GridDateTimeColumn FilterControlWidth="110px" DataField="RequestedCompletionDate" SortExpression="RequestedCompletionDate" HeaderText="Req Completion Date" PickerType="DatePicker" DataFormatString="{0:d}" DataType="System.DateTime"></telerik:GridDateTimeColumn>

<telerik:GridBoundColumn DataField="Status" HeaderText="Status" SortExpression="Status" AutoPostBackOnFilter="true" CurrentFilterFunction="Contains"></telerik:GridBoundColumn >

</Columns>

</MasterTableView>

</telerik:RadGrid>

Filter

answered on 06 Aug 2015

3 answers

275 views

NestedViewTemplate with Controls added programmatically while binding

Hi,

I have a simple RadGrid control.
For each data item in the Datasource I create a User Control.
The user control is determined at runtime according to the data-item (or data item id).
I use LoadControl function to load the control.

I want to add this control as a nested view template, so I can collapse/expand each row and edit the different controls.
Once I finish editing the controls - (all in client side), I hit a save button to persist all the information to database.

I will have to loop through the rows, get the user-control and execute a save function in it.

What would be the best practice to achieve this?
I started by adding NestedViewTemplate with a container panel to hold the various user controls.
This is how it looks like:

<MasterTableView AutoGenerateColumns="False" DataKeyNames="Id" GroupLoadMode="Client" HierarchyLoadMode="Client">

<NestedViewTemplate>

<asp:Panel runat="server" ID="configControlContainer" CssClass="viewWrap" Visible="true">

</asp:Panel>

</NestedViewTemplate>

<Columns>

.

Thank you,

-Itye

Grid

answered on 06 Aug 2015

6 answers

270 views

Example throw exception

Hi guys,

I found this excellent example

http://demos.telerik.com/aspnet-ajax/scheduler/examples/outlook2007/defaultcs.aspx

Which is just what I need to implement.

But when I copy and paste into my application I get this error

The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.

and stack trace

[HttpException (0x80004005): The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.]
   System.Web.UI.ControlCollection.Add(Control child) +11274544
   Telerik.Web.SkinRegistrar.RegisterCssReference(Page _page, Control _control, String _url) +619

[HttpException (0x80004005): Please, see whether wrapping the code block, generating the exception, within RadCodeBlock resolves the error.]
   Telerik.Web.SkinRegistrar.RegisterCssReference(Page _page, Control _control, String _url) +724
   Telerik.Web.SkinRegistrar.RegisterCssReferences(ISkinnableControl _control) +1182

Do you have any clue, what I'm doing wrong?

Many thanks!

Scheduler

answered on 06 Aug 2015

1 answer

1.7K+ views

Exception : The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.

I Added the grid in the Sharepoint web part , I did not add any code behind , I just added to the aspx the following :

<telerik:RadGrid ID="RadGrid1" runat="server" >

</telerik:RadGrid>

The exception is:

The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.

[HttpException (0x80004005): The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases.] System.Web.UI.ControlCollection.Add(Control child) +353 Telerik.Web.SkinRegistrar.RegisterCssReference(Page page, Type registerType, String url) +618 [HttpException (0x80004005): Please, see whether wrapping the code block, generating the exception, within RadCodeBlock resolves the error.] Telerik.Web.SkinRegistrar.RegisterCssReference(Page page, Type registerType, String url) +729 Telerik.Web.SkinRegistrar.RegisterCssReferences(ISkinnableControl control) +683 Telerik.Web.UI.RadGrid.ControlPreRender() +56 System.Web.UI.Control.PreRenderRecursiveInternal() +155 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Control.PreRenderRecursiveInternal() +240 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4106

Any suggestions ?

Grid

answered on 06 Aug 2015

5 answers

83 views

Feature request

Probably not possible but....

It would be neat if one could embed user controls into the editor. This would then allow us as developers to create editable layouts that contain user controls.

Thanks

Editor

answered on 06 Aug 2015

4 answers

128 views

RadEditor cannot upload documents

We recently upgraded to .Net 4.5 and I am now receiving a 404 File or Directory Not Found error when I try to upload a pdf. I have made all the changes to the web.config that were suggested in the documentation.

Any help would be appreciated

Editor

answered on 06 Aug 2015

2 answers

79 views

[Solved] RenderMode Mobile with SEOPaging turn on button issue

I have an issue with radgrids on public pages on my site (pages I want search engines to spider) are showing the back/next image button instead of the new "Mobile" buttons.

See attached images. One is from a datagrid with SEOPaging turn on (Old Buttons) and one with SEOPaging turned off (New Buttons).

Grid

answered on 05 Aug 2015

16 answers

357 views

RadUpload Ajax callback error. Source url returned error: 12002

For some reason, we're getting the attached error when using the RadUpload to upload a 43MB file. The funny thing is that the progress stops moving, even though it takes several minutes before the error pops up. On our test system, I can sometimes get 1-2% before it stops. I then have to wait for a while before the error comes up. During this time, I'm not sure anything is happening. On our production system, it get's a bit further before giving the error. Either way, the time, speed, and progress all stop.

What is causing this error to occur? I double checked and the web.config is setup correctly. We can upload other files, just not this one.

Upload (Obsolete)

answered on 05 Aug 2015

10 answers

548 views

[Solved] QR Code Color

Is it possible to change the color of the generated QR Code?

Barcode

answered on 05 Aug 2015

3 answers

657 views

Captcha not showing image in server

Hello,

We have the implementation as such in one of our pages:
<telerik:RadCaptcha ID="RadCaptcha1" Runat="server" ErrorMessage="The code you entered is not valid." ForeColor="Red"
CaptchaImage-BackgroundColor="#4c669F" CaptchaImage-TextColor="White" ValidationGroup="Group"
CaptchaTextBoxCssClass="employee" CaptchaTextBoxLabel="  Type the code from the image" ImageStorageLocation="Session"/>

Config:
<httpHandlers>
<add verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
<add path="ChartImage.axd" verb="*" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Version=2012.1.411.40, Culture=neutral, PublicKeyToken=121fae78165ba3d4" validate="false"/>
<add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResourceSession" verb="*" validate="false"/>

</httpHandlers>
<handlers>
<add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
<add name="ChartImageWebControlHandler" preCondition="integratedMode" verb="*" path="ChartImage.axd" type="Telerik.Web.UI.ChartHttpHandler, Telerik.Web.UI, Version=2012.1.411.40, Culture=neutral, PublicKeyToken=121fae78165ba3d4"/>
<add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResourceSession"/>

</handlers>

This is working well in my local machine but not when it is deployed to server. Server is a 2008R2 web server.

Please post back with a solution.

Captcha

answered on 05 Aug 2015