Questions on UI for ASP.NET AJAX Forum

2 answers

165 views

NeedDataSource always called on past back

I have a grid inside a user control. The user control is recreated on postback. After it is recreated the NeedDataSource always fires and the rebind reason is always "InitialLoad". Also, none of my command handlers are called. Am I not supposed to be recreating the control?

This is what I'm doing:

Creating the user control with the grid inside of it.
In the NeedDataSource, I bind it to the data (and I DON'T call DataBind or Rebind())
The grid shows up fine with all data in it.
Then when I press edit, it makes the fields editable.
Once I press update (which is next to "cancel"), it posts back, the user control (that contains the grid) is recreated by me in Page_Load, and NeedDataSource is called again. The rebind reason is always "InitialLoad".

Notes:

No where am I turning off view state.
I'm using telerik version 2011.2.915.40.
The only place I'm bind to the grid is in NeedDataSource.

Any idea on what may be happening? All I'm looking to do is having a grid that has items which I can edit.

Here is my grid definition:

<telerik:RadGrid ID="radGridEmails" runat="server" Skin="Transparent" AutoGenerateColumns="false">

<MasterTableView EditMode="InPlace" >

<Columns>

<telerik:GridEditCommandColumn />

<telerik:GridBoundColumn DataField="Name" HeaderText="Name" UniqueName="Name">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Email" HeaderText="Email" UniqueName="Email" >

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

More markup in the user control:

<telerik:RadAjaxManagerProxy ID="RadAjaxManager2" runat="server" >

<AjaxSettings >

<telerik:AjaxSetting AjaxControlID="radGridEmails" >

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="radGridEmails" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManagerProxy>

Code in aspx Page_Load:

if (ViewState["currentlyLoadedSection"] != null)

{

panelMain.Controls.Clear();

string ctrl = (string)ViewState["currentlyLoadedSection"];

UserControl uc = (UserControl) GetControlByType(ctrl);

uc.ID = ctrl;

panelMain.Controls.Add(uc);

Trace.Write("recreated section " + ctrl);

}

Code in user control:

protected override void OnInit(EventArgs e)

{

base.OnInit(e);

radGridEmails.UpdateCommand += new Telerik.Web.UI.GridCommandEventHandler(radGridEmails_UpdateCommand);

radGridEmails.InsertCommand += new Telerik.Web.UI.GridCommandEventHandler(radGridEmails_InsertCommand);

radGridEmails.DeleteCommand += new Telerik.Web.UI.GridCommandEventHandler(radGridEmails_DeleteCommand);

radGridEmails.NeedDataSource += new Telerik.Web.UI.GridNeedDataSourceEventHandler(radGridEmails_NeedDataSource);

}

protected void radGridEmails_NeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e)

{

radGridEmails.DataSource = emailAddresses;

Trace.Write(e.RebindReason.ToString());

}

Grid

answered on 18 Jan 2012

5 answers

131 views

[Solved] eventArgs of a named/non Anonymous JS Function

Hi,

stupid question ... How can I get the list of arguments available in a named/non anonymous function?
For example, I'm calling onClientXXXX = "MyJS" on a Telerik Control and I'd like to know what is available in the eventArgs ?

Also, when i go in specific RadControls Documentation, sometimes I can get from the examples ... the methods on the eventArgs... eg : args..set_cancel(), args.get_checked()....etc but where do I get an exhaustive list of available methods/properties of those respective Args... I can't seem to find them.
Thanks

General Discussions

answered on 18 Jan 2012

0 answers

131 views

Problem with patched .NET Framework

On December 29 2011 a vulnerability was found in the .NET Framework (http://support.microsoft.com/kb/2638420) basically the vulnerability is related with the number of parameters that an ASP.NET application can receive, the problem is that if you have a RadGrid with more than 10 rows and 15 RadTextBox per row every request will exceed the maximum amount of parameters.

The error that I got was:
Message: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500

We can fix this issue using the information of the next link: http://support.microsoft.com/kb/2661403
To fix this issue we just need to set the maximum amount of parameters the page is allowed to get to something that we calculate covers our needs, in my case 3000:

<configuration>

<appSettings>

<add key="aspnet:MaxHttpCollectionKeys" value="3000" />

</appSettings>

</configuration>

Regards

General Discussions

asked on 18 Jan 2012

1 answer

107 views

RADLoadingPanel move as the browswer scroll

Hi,
I am using SharePoint 2010, and i was learning how to incoorperate AJAX with RADLoadingPanel. The LoadingPanel did shows up but when i scroll, the loadingPanel stick at one location which it is not suppose to.

Anything i did is not right or AJAXPanel donot 100% compatible with SharePoint 2010?

Regards,

Ajax

answered on 18 Jan 2012

5 answers

118 views

Bug on IE 9

When viewed on IE9; contents of all pageviews will be shown in selected index at once.

But when tab is click; corresponding pageview will behave normally..



Note: Tabstrip is within custom control used inside RadGrid.



---- Code below ----



<

telerik:RadTabStrip runat="server" ID="tabStripDetails" SelectedIndex="0" MultiPageID="radMultipage">

<Tabs>

<telerik:RadTab runat="server" id="tabPersonal" PageViewID="viewPersonal" Text="Personal Details">

</telerik:RadTab>

<telerik:RadTab runat="server" id="tabEducation" PageViewID="viewEducation" Text="Educational Background">

</telerik:RadTab>

<telerik:RadTab runat="server" id="tabEmployment" PageViewID="viewEmployment" Text="Employment Details">

</telerik:RadTab>

</Tabs>

</telerik:RadTabStrip>

<telerik:RadMultiPage runat="server" ID="radMultipage" SelectedIndex="0">

<telerik:RadPageView ID="viewPersonal" runat="server">

<div style="border: 1px solid #828282; margin-top: -1px; display: block; background: #ffffff">

Content #1 Goes Here

</div>

</telerik:RadPageView>

<telerik:RadPageView ID="viewEducation" runat="server">

<div style="border: 1px solid #828282; margin-top: -1px; display: block; background: #ffffff">

Content #2 Goes Here

</div>

</telerik:RadPageView>

<telerik:RadPageView ID="viewEmployment" runat="server">

<div style="border: 1px solid #828282; margin-top: -1px; display: block; background: #ffffff">

Content #3 Goes Here

</div>

</telerik:RadPageView>

</telerik:RadMultiPage>

TabStrip

answered on 18 Jan 2012

12 answers

297 views

[Solved] Collapse onload

I have a panelbar that I am using on a masterpage. I am saving state on it so it will pass the state to the next level. My issue is, when users select the home page tab to return to the home page, I would like the panelbar to collapse. I do not want the state to stay the same. I think my goal can be accomplished by having a collapse on load for my Home masterpage. I currently use a Javascript to collapse on selecting another level 1 page. See script below. Can someone tell me how to add an additional javascript that will collapse the panelbar onload.

function collapseItem(panelbar, args)
        {
            if(args.get_item().get_items.length < 1)
            {
        for (var i=0; i < panelbar.get_items.length; i++)
        {
            panelbar.get_items[i].Collapse();
        }
        }
        }
        </script>

PanelBar

answered on 18 Jan 2012

1 answer

114 views

Ajax & URL Re-writing

I've got some controls that do ajax requests on the page, however, i've noticed that they're posting to the wrong page address.

myfirendlyurl/myunfriendlyurl.aspx

From a few searches it seems i've got to set the ajaxurl property of the rad ajax manager. Only thing is .. I can't find it. I've looked at the intellisense attributes in both aspx and the code behind file. Neither list an AjaxUrl property. what gives?

FYI i'm using this version of the controls

2011.2.712.40

Ajax

answered on 18 Jan 2012

1 answer

75 views

RadAjaxManagerProxy - error in documentation

in the 2011 Q3 documentation that is installed on my local computer during setup, I found what I am pretty sure is a typo for the RadAjaxManagerProxy.

The ASPX code has the following:

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function myUserControlClickHandler() {

$find("<%= RadAjaxManager.GetCurrent(PageClientID %>").ajaxRequest("content");

}

</script>

</telerik:RadCodeBlock>

I believe that the code in the $find has an error, and should be the following instead:

$find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>").ajaxRequest("content");

The difference is that is should be ".GetCurrent(Page).ClientID" instead of ".GetCurrent(PageClientID".

At least that is what works for me.

Ajax

answered on 18 Jan 2012

5 answers

238 views

Column resizing with self-referencing hierarchy

I have a RadGrid with a self-referencing dataset, and while it expands and collapses fine, column resizing is not working with multiple levels of data. If the entire grid is collapsed, resizing works fine, but when they are expanded, the cell contents of the highest level rows get resized but the child levels are totally out of alignment. Is this a known issue?

Grid

answered on 18 Jan 2012

10 answers

162 views

RadAjax firing after RadToolTipUpdate

Hopefully someone can help me out here. I have a radtooltip that uses ajax and that works fine on the page. I also have a radajaxmanager object that works fine as well. The radajaxmanager has both OnRequestStart and OnResponseEnd events. When calling any ajaxified control, the process works correctly, however, when I cancel an ajax request in the OnRequestStart event (by calling eventArgs.set_enableAjax(false) and eventArgs.set_cancel(true);), the OnResponseEnd event fires after I hover over the tooltip. The arguments are the same as the prior cancelled event so I'm led to believe the prior ajax call really didn't cancel and the OnResponseEnd is called after my radtooltip's ajax call. Also, if I click another button and the process is allowed to go through (without cancelling), the tooltip works fine on subsequent calls. Any help would be appreciated.

Another thing, the tooltip never fires the OnRequestStart or OnResponseEnd AjaxManager events. It is only after an ajax request is cancelled will this happen.

Ajax

answered on 18 Jan 2012