Questions on UI for ASP.NET AJAX Forum

1 answer

104 views

I have been using the RadAJAXManager available in Telerik RadControls Q2 2010 and while running my application in IE 9, I have been receiving the following error message while my RadAJAXLoadingPanel is displaying the image:

Line: 15
Error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 12030

I am not quite sure why I am receiving this error message. Below is the code that I am using for my postback on the checkboxchanged event within the RadGrid:

<asp:wizardstep id="wizStepClassReg" title="Class Registration" runat="server" steptype="Step">

<asp:validationsummary id="vldSummaryCourseSelection" validationgroup="selectedCourses"

displaymode="SingleParagraph" showmessagebox="true" runat="server" forecolor="Red" />

<asp:customvalidator id="vldCustomCourseSelection" runat="server" onservervalidate="vldCustomCourseSelection_ServerValidate"

validationgroup="selectedCourses" errormessage="Please select at least one course for registration"

display="None" />

<telerik:radajaxmanager id="radAJAXMgr" enableajax="true" runat="server" defaultloadingpanelid="radAJAXLoadingPanel">

<ajaxsettings>

<telerik:ajaxsetting ajaxcontrolid="gv">

<updatedcontrols>

<telerik:ajaxupdatedcontrol controlid="gv" loadingpanelid="radAJAXLoadingPanel" />

</updatedcontrols>

</telerik:ajaxsetting>

</ajaxsettings>

</telerik:radajaxmanager>

<telerik:radajaxloadingpanel id="radAJAXLoadingPanel" runat="server" skin="Black" />

<telerik:radgrid id="gv" autogeneratecolumns="false" showfooter="false" runat="server"

cellspacing="0" gridlines="None" allowpaging="true" allowsorting="true" skin="Outlook"

onpageindexchanged="RadGrid1_PageIndexChanged" showgrouppanel="false" onsortcommand="RadGrid1_SortCommand"

onpagesizechanged="RadGrid1_PageSizeChanged" onitemdatabound="gv_ItemDataBound">

<mastertableview datakeynames="CourseID" pagesize="25">

<commanditemsettings exporttopdftext="Export to PDF"></commanditemsettings>

<rowindicatorcolumn filtercontrolalttext="Filter RowIndicator column">

</rowindicatorcolumn>

<expandcollapsecolumn filtercontrolalttext="Filter ExpandColumn column">

</expandcollapsecolumn>

<groupbyexpressions>

<telerik:gridgroupbyexpression>

<selectfields>

<telerik:gridgroupbyfield fieldalias="AgeGroup" fieldname="CategoryDesc" />

<telerik:gridgroupbyfield fieldalias="Subject" fieldname="SubjectDesc" />

</selectfields>

<groupbyfields>

<telerik:gridgroupbyfield fieldname="CategoryDesc" sortorder="None" />

<telerik:gridgroupbyfield fieldname="SubjectDesc" sortorder="None" />

</groupbyfields>

</telerik:gridgroupbyexpression>

</groupbyexpressions>

<columns>

<telerik:gridboundcolumn uniquename="CourseID" readonly="true" display="false" datafield="CourseID" />

<telerik:gridtemplatecolumn>

<itemtemplate>

<asp:checkbox runat="server" id="chk" oncheckedchanged="CheckChanged" autopostback="true" />

</itemtemplate>

</telerik:gridtemplatecolumn>

<telerik:gridboundcolumn headertext="Age Group" datafield="CategoryDesc" />

<telerik:gridboundcolumn headertext="Subject" datafield="SubjectDesc" />

<telerik:gridboundcolumn uniquename="CourseDescription" datafield="CourseDescription" headertext="Ages" />

<telerik:gridboundcolumn headertext="Term" datafield="term.TermDesc" />

<telerik:gridboundcolumn headertext="Course Cost" datafield="Cost" dataformatstring="{0:C}" />

<telerik:gridboundcolumn headertext="Length (Weeks)" datafield="CourseLength" />

<telerik:gridboundcolumn headertext="Days" datafield="Days" />

<telerik:gridboundcolumn headertext="Start Time" datafield="StartTime" />

<telerik:gridboundcolumn headertext="End Time" datafield="EndTime" />

<telerik:gridboundcolumn headertext="Location" datafield="location.LocationDesc" />

</columns>

<editformsettings>

<editcolumn filtercontrolalttext="Filter EditCommandColumn column">

</editcolumn>

</editformsettings>

</mastertableview>

<headercontextmenu cssclass="GridContextMenu GridContextMenu_Default">

</headercontextmenu>

</telerik:radgrid>

</asp:wizardstep>

Please advise.

Ajax

answered on 19 May 2011

1 answer

39 views

Java Script Return value in RadGrid1_ItemCommand

Hello .

ScriptManager.RegisterStartupScript(this, this.GetType(), "Key", "radconfirm('This Asset Make Use Ticket, Are Sure Delete This Asset?',confirmCallBackFn, 330, 100, null,'Send Message?');", true);

i call that script

function confirmCallBackFn(sender, arg) {
                debugger;
                var sample
                if (arg == true) {
                    var lbltxt = "0";
                    var hdnval = document.getElementById("MainContent_hdnval");
                    hdnval.innerText = lbltxt;
                }
                else {
                    var hdnval = document.getElementById("MainContent_hdnval");
                    hdnval.innerText = "1";
                }
            }

after execute this script
i want go to server side after that only i check
hdnval = 0 i check some process

please reply soon

Thanks,
Mohamed.

Grid

answered on 19 May 2011

10 answers

273 views

Hide or remove Saturday and Sunday checkboxes of Weekly recurrence in RadSchedulerRecurrenceEditor

I found the code to hide or remove Hourly recurrence and it was very helpful.
Now, I tried to hide or remove Saturday and Sunday checkboxes of Weekly recurrence in RadSchedulerRecurrenceEditor.
How do I do this? Please help! Thanks in advance!

Scheduler

answered on 19 May 2011

1 answer

37 views

Get the text tiped on filter box

Hi:
I need to get the text tiped on filter box of my gridview.

Thanks.

Grid

answered on 19 May 2011

2 answers

77 views

RadGrid UI Problem!!!

Hello, I am developing a web application with asp.net and Telerik RadAjax control. I found a problem.That is RadGrid UI is not load correctly. The grid is show the image bellow. How can i solve this type of error.

#NB: This Grid Code is Copy from other Page.

Thanks
Nahid

Grid

answered on 19 May 2011

2 answers

204 views

Find DataFieldId from RadTreeView through JS

Hello,

Here I need to find DataFieldId from RadTreeView through javascript. My scenario as under:

RadTreeView Fillup as:

RadTreeView1.DataTextField = "ModuleName";
RadTreeView1.DataFieldID = "ModuleID";
RadTreeView1.DataValueField = "URL";
RadTreeView1.DataFieldParentID = "ParentModuleID";
RadTreeView1.DataSource = lstmenu;
RadTreeView1.DataBind();

As above I need DataTextField to display text of my modules, DataValueFields which i am using in JS to pass local url in it. In DatafieldId I am storing "ModuleId". But in javascript I can not find DataFieldId which I need to user on click of RadTreeNode.

JS as like:

function onNodeClicking(sender, args) {
    if (args.get_node().get_value() != null) {
        //window.open(args.get_node().get_value(), args.get_node().get_text(), 'resizable=yes')
    }
}

in above js I need to find DataFieldId also. Please assit me how to do this.

Thanks & Regards,

Kaushal Jani

TreeView

answered on 19 May 2011

4 answers

188 views

Chart pie: series' labels

Hello!
I've got a chart with two pie series. I need to know if it's possible to show a label for each series over each pie.

Thanks a lot.
Ilaria

Chart (Obsolete)

answered on 18 May 2011

1 answer

224 views

time format in excel exported by radgrid is 24 hr

Hi all,
i am facing issue in exporting griddata to excel . i have a grid which has column of datetimetype where datetime is in 12 hr format ... when i export this grid data in excel and open excel it shows grid this column's value in 24 hr format . I also attached excel file for reference ... in grid i have datetime as 5/4/2011 1:18:03 PM but in exported excel file it is in 5/4/2011 13:18:03 when i click on this cell it shows me in 12 hr format but my requirement is it will be in 5/4/2011 1:18:03 PM only .... i can customize my column excel but thats not feasable beacuse every time i export i need to customize it ... Kindly look into the issue ASAP .

Grid

answered on 18 May 2011

1 answer

61 views

radgrid update problem

:)

Grid

answered on 18 May 2011

6 answers

486 views

"Invalid group by expression: Group By clause missing" error when grouping a GridTemplateColumn

I receive a "Invalid group by expression: Group By clause missing" when grouping a GridTemplateColumn. However, if I set that same column as a GridBoundColumn, grouping works correctly. Also, if I set the GridTemplateColumn to be grouped by default the GroupByExpressions collection, it is grouped properly, but then if I remove the grouping and drag the column to be grouped again, it fails with the same error.

If I remove the GroupByExpression from the GridTemplateColumn definition and try to group by dragging, I get a "Telerik.Web.UI.GridGroupByException: Expression cannot be null or empty" error.

GridBoundColumn definition that works:

<

telerik:GridBoundColumn

UniqueName="School1"

SortExpression="School"

DataField="School"

HeaderText="School"

AllowFiltering="true"

Groupable="true"

HeaderStyle-Width="75"

ItemStyle-Width="75"

FooterStyle-Width="75"/>

GridTemplateColumn defination that fails (with GroupByExpression="School" I get "Invalid group by expression: Group By clause missing" and without it I get "Telerik.Web.UI.GridGroupByException: Expression cannot be null or empty":

<

telerik:GridTemplateColumn

UniqueName="School2"

SortExpression="School"

DataField="School"

HeaderText="School"

AllowFiltering="true"

Groupable="true"

HeaderStyle-Width="75"

ItemStyle-Width="75"

FooterStyle-Width="75">