Questions on UI for ASP.NET AJAX Forum

3 answers

342 views

[Solved] Difference between RadAjaxManager and RadScriptManager

Hi,

I am using Sharepoint 2010. I have added the rad grid and i also added the radajax manager.

I would like to know the difference between "RadAjaxManager and RadScriptManager" and whcih should be used in sharepoint 2010?

Below is the radajax code i have used:

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

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="radgrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="radgrid1" LoadingPanelID="RadAjaxLoadingPanel1" />

<telerik:AjaxUpdatedControl ControlID="hdnRowsCount" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Height="75px"

Width="75px" Transparency="25">

<img alt="Loading..." src='<%= RadAjaxLoadingPanel.GetWebResourceUrl(Page, "Telerik.Web.UI.Skins.Default.Ajax.loading.gif") %>'

style="border: 0;" /></telerik:RadAjaxLoadingPanel>

Also, in the cs, i have manually added the ajax as below for sharepoint 2010:

RadAjaxManager ajaxmgr;

protected override void CreateChildControls()

{

Control control = Page.LoadControl(_ascxPath);

Controls.Add(control);

RadAjaxLoadingPanel loadingPanel = control.FindControl("RadAjaxLoadingPanel1") as RadAjaxLoadingPanel;

RadGrid grid = control.FindControl("radgrid1") as RadGrid;

//Find more controls to add to the ajax settings

if (ajaxmgr != null)

{

ajaxmgr.AjaxSettings.AddAjaxSetting(grid, grid, loadingPanel);

}

protected override void OnInit(EventArgs e)

{

base.OnInit(e);

ajaxmgr = RadAjaxManager.GetCurrent(Page);

if (ajaxmgr == null)

{

ajaxmgr = new RadAjaxManager();

Page.Items.Add(typeof(RadAjaxManager), ajaxmgr);

}

if (Page.Form != null)

{

Page.Form.Controls.AddAt(0, ajaxmgr);

}

EnsureChildControls();

}

Thanks

Ajax

answered on 21 Dec 2012

1 answer

88 views

Got Exception when using grid filter

Hi,

I got a rad grid and a column which tried using the filter textbox. When I typed in the name and selected the "Contains" filter, an exception is thrown and it breaks at the following telerik code. Please help. I am not sure why it is bombing.

Telerik.Web.UI.GridFilterFunction.parse=

function(b,a){return(typeof b=="number")?b:Sys$Enum$parse.call(this,b,!!a);

};

Unhandled exception at line 3193, column 55 in http://localhost:19090/ScriptResource.axd?d=k62TwA9lIVL1DYh1_yahdvGdpToXcfYK8FuLsmPfwI_xLuse-EL6cMNkqgLdBIsX0-NS-Yr6mZXhBS4-c1db0SyByg9DvHR-9hEtEbmq1yoeOwgWF_v9aCiAL0gbx6bhyPmuGQAmBlm_IbfyURt9HQ2&t=6f22ca9b

0x800a1391 - Microsoft JScript runtime error: 'Sys$Enum$parse' is undefined

Grid

answered on 21 Dec 2012

5 answers

158 views

Resize in iPad

Hi there, we have a weird behavior of the RadSplitter when the page is displayed in an iPad.
Basically, the page width keeps growing a couple of pixels per second (or so), thus overflowing on the right side.
Is this a known behavior (I hope so, we have this in two different applications)? Is there a workaround?
Thanks

Splitter

answered on 21 Dec 2012

1 answer

116 views

[Solved] Select multiple items

We recently updated our Telerik controls, and in that, we lost the ability to select multiple items in the FileExplorer. We've tried these 4 settings, to no avail:

FileExplorer.Grid.AllowMultiRowSelection = true;

FileExplorer.Grid.AllowMultiRowEdit = true;

FileExplorer.FileList.AllowMultipleItemSelect = true;

FileExplorer.ListView.AllowMultiItemSelection = true;

Is there any other settings we need to set to re-enable multiselect in the FileExplorer?

FileExplorer

answered on 21 Dec 2012

3 answers

184 views

Vertical RAD Menu not Expanded

Hello Team,

I have RAD Menu and i have set its flow="vertical" . The submenus are binded through sitemap datasource.

i menu appears vertical and collapsed. I need the sub-menu items should be expanded always under root menu.

Please help me in resolve this.

Css below is for settign root menu style

.RadMenu_Default

.rmItem

{

padding: 1px 0 3px 56px;display: block;border-bottom: 1px solid #cacaca;color: #193444;text-decoration:none; background: #d6dfc8 url(../ImagesNew/blue_arrow.gif) no-repeat 15px 4px;

}

.RadMenu_Default

.rmRootLink

{

background: url(../ImagesNew/toptitle.gif) repeat-x; width:100%;

}

Thanks

Menu

answered on 21 Dec 2012

2 answers

79 views

OnItemDragging client event does not fire if AjaxControlToolkit added in Web application

Hi,

I have an issue to work with RadTreeList OnItemDragging Client Event. The event does not fire when I dragging the tree item. I have tried to find the reason and got that it is because, I have added AjaxControlToolkit in my web application. If I remove the reference of AjaxControlToolkit then event works well, but I need it for other functionality so can not remove ajaxcontroltoolkit from my web application.

Please, help me to work with RadTreeList OnItemDragging client event without remove ajaxcontroltoolkit.

Thanks.

TreeList

answered on 21 Dec 2012

1 answer

70 views

Anyway to speed up the filter?

The filter is very, very slow for everyday use against a radgrid.

It seems that a postback is created whenever an expression is added, when a field is selected and again when the operator is selected. To do a simple filter for a last name "containing" it goes through 3 post backs. Is there a way to speed this up? Am I missing something?

Thanks!

Rob

Filter

answered on 21 Dec 2012

10 answers

1.2K+ views

MaxJsonLength exceeded / Self Referencing

Hi there,

i encountered a (hopefully) small problem when using the radgrid control to display hierarchical self-referencing data.

I have an XML-Datasource that contains around 1000 items. Each item has 30 attributes. There are 4 levels of hierarchy in the data.
e.g.

Item 1 (ID = 0, PARENT_ID = null)
---> Item 2(ID = 1, PARENT_ID = 0)
--------> Item 3 (ID = 2, PARENT_ID = 1)
...

The RadGrid is configured to use Databinding by the NeedDataSource event and self-referencing (id and id_parent). Where the datasource property is set to the aforementioned XML-Datasource. As Soon as the XML contains 800 lines or more an InvalidOperationException is thrown:

Error during serialization or deserialization using the JSON JavaScriptSerializer. The length of the string exceeds the value set on the maxJsonLength property.

I have already set the <jsonSerialization maxJsonLength="2147483644" /> value to the maximum and I am pretty sure that the data payload should not reach that value (2 Gb??). Also when I manually instance a System.Web.Script.Serialization.JavaScriptSerializer() it tells me the MaxJsonLength is only 2 MB but as far as I can tell that is by design.

I hope you can provide with some hints on how to proceed in this matter (Switching to a HierarchyLoadMode othern than Client, is unfortunately not an option.

Thank you for you support.

Regards.

---
Edit: Added the hint that I am using self referencing which was previously only contained in the title of the post.

Grid

answered on 21 Dec 2012

2 answers

217 views

Hierarchic grid: use parent key field as parameter of child objectdata source

Hello,
I have a hierarchic grid. Something like that (I tried to keep only the interesting lines).

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

<MasterTableView AutoGenerateColumns="False"
Name=

"LEVEL1"

DataKeyNames=

"SourceID"

CommandItemDisplay=

"Top"

EditMode="EditForms"
DataSourceID="ObjectDataSource1" >

<Columns>

<telerik:GridBoundColumn UniqueName="SourceID"
DataField="SourceID"
ReadOnly="true" />

</Columns>

<DetailTables>

<telerik:GridTableView AutoGenerateColumns="False"
Name="LEVEL2"
DataKeyNames="SourceID"
runat="server"
CommandItemDisplay="Top"
DataSourceID="ObjectDataSource4" >

<ParentTableRelation>

<telerik:GridRelationFields DetailKeyField=

"SourceID"

MasterKeyField="SourceID" />

</ParentTableRelation>

<Columns>

<telerik:GridBoundColumn UniqueName=

"SourceID"

DataField=

"SourceID"

ReadOnly="true" />

<telerik:GridDropDownColumn UniqueName="ElementShortNameID"
DataField="ElementID"

                                                                          HeaderText

="Element Short Name ID"
ReadOnly="false"

                                                                          DropDownControlType

="RadComboBox"

                                                                          DataSourceID

="ObjectDataSource5"

                                                                          ListTextField

="ElementShortNameID"

                                                                          ListValueField

="ElementID" />

</Columns>

</telerik:GridTableView>

</DetailTables>

</MasterTableView>

</telerik:RadGrid

At first level (MasterTableView), the records have a "data key name" (sourceID)
At second level, the records have also the same data key name (So I have a "grid relation fileds" between the two identifers)
At second level, there is another field (element) with a value provided by a radcombobox.
I want that, in edit mode, the available element values in the radcombobox depend on the sourceID.
See the following object data source:

<asp:ObjectDataSource ID="ObjectDataSource5" runat="server" TypeName="DataAccessLayer.DataSource.ElementDataSource" SelectMethod="GetElementsListBySource" >

<SelectParameters>

<asp:Parameter Name="SourceID" Type="String"></asp:Parameter>

</SelectParameters>

</asp:ObjectDataSource>

It works correctly when I am in Edit mode in order to UPDATE a record. The sourceID used seems to be the one of the record.

But, when I enter in edit mode in order to INSERT a new record (via the "Add a record button"), the sourceID parameter, received by the objectdatasource method (GetElementsListBySource) is null. As the record still not exists, no sourceID can't be used.

My question is: How could a get the parent record sourceID to pass it to the objectdatasource method providing my elements ?
I would like, if possible, make that declaratively in the aspx file to keep the same usage of objectdatasource.

Thanks by advance.
Damien

Grid

answered on 21 Dec 2012

3 answers

154 views

RadGrid Edit UserControl with Autopostback

Is it possible to use a UserControl edit form that does an autopostback with a radgrid configured as an update control in the ajax manager? Has anyone done this? I have a sample that works but when the combobox does the autopostback the page does a full postback.

Grid

answered on 21 Dec 2012