Questions on UI for ASP.NET AJAX Forum

1 answer

92 views

The PivotGrid on my webpage is running very slowly when using Internet Explorer 10. However, the performance is greatly improved when using Firefox instead.

As Internet Explorer 10 is part of my company's SOE, is there anything that can be done to improve the performance of the PivotGrid when using IE10 as the browser?

PivotGrid

answered on 17 Mar 2014

1 answer

62 views

Icon for nodes that does not have a children

Hi,
In the treeview we have nodes that has child elements not visible , For this we add icon using rtPlus and rtMinus class. On the same treeview we have nodes that does not have any child.We need to place an icon . How do i target these nodes in CSS?

TreeView

answered on 17 Mar 2014

1 answer

191 views

Hiding Caption in Export to Excel

Hello,

I have many radgrids in my solution & most of them have export to excel feature implemented. Recently, we added Summay & Caption Statements to these grids in the ASPX files. In order not to show the Captions when the grid is displayed, I added a CSS class like "rgCaption" or "MasterTable_Default caption" or "DetailTable_Default caption".

Here is the example of the class.

.rgCaption
{
position: absolute;
left: -10000px;
top: auto;
width: 1px;
height: 1px;
overflow: hidden;
visibility: hidden;
line-height: 0;
}

So when the grid is displayed in the webpage, the caption is hidden. I also want to do something similar when I do the export to excel (using CSS). Currently all my exported excels show the Caption which I don't want. I can always say Grid.MasterTable.Caption = String.Empty() in OnExcelExportCellFormatting or OnGridExporting. But this approach would make me edit all of the pages where export is involved & is too tedious & time-taking. I also tried

Any Ideas?

Thanks
Bobby

Grid

answered on 17 Mar 2014

1 answer

126 views

bind rad drop down tree

how to bind ad drop down tree with sqldata reader

DropDownTree

answered on 17 Mar 2014

1 answer

131 views

[Solved] Client event handlers changes value of 'this'

So I have a kind of interesting problem here. I am using the Telerik control suite for ASP.NET AJAX, inside a number of custom user controls.

When assigning client side event handlers, I have changed my approach from defining functions at the window scope, to using the $create method to create an object for my control, and assigning the control's client side event to a method defined on the prototype. Here is the basic setup:

From an external js file:

function genericControl_init(sender, args){

$create(GenericObject, sender);

}

function GenericObject(){};

GenericObject.prototype = {

someFunction: function (sender, args) {

console.log(this.someProperty)//undefined

console.log(this);//this is not the GenericObject

},

get_id: function () { return this.id },

set_id: function (id) { this.id = id },

beginUpdate: function () { return true },

endUpdate: function () { return true }

}

And on the page, generated in the code behind, this uses the control's ClientID for the id property on the JSON object:

genericControl_init({ "id": "ct101_someControl", "someProperty": "ct101_someControl_someClientID" });

and in the codebehind, to assign the event:

RadComboBox1.OnClientSelectedIndexChanged = String.Format("$find('{0}').{1}", ClientID, "someFunction");

This is just using a RadComboBox as an example, this happens with any Telerik control. Basically, it appears that the scope of this has changed when assigning the function as an event handler for a Telerik control and no longer references my GenericObject object.

A workaround I have found is storing the ClientID as an attribute on the Telerik control, and then grabbing it like sender.get_attributes().getAttribute('controlClientId') and using $find to get the reference to the original object and access it's individual properties. This feels sloppy though, and I was just wondering if anyone had a suggestion on how to better handle this.

General Discussions

answered on 17 Mar 2014

8 answers

157 views

RadProgressArea causing js error in Chrome and prevents callbacks

Hello!

I'm using RadProgressArea to display upload process progress. It's placed on the master page so that I don't need to add it on each page. It works well in IE, FF and Safari. But when I use Chrome, after the page performs the very first callback (from any control on the page), the following line in js code is causing an error and callbacks stop working at all. Here's the js code:

if($telerik.RadUpload_isIFrameProgress){this._safariPoller.contentWindow.pollerInstance._startTime=new Date();

and the error is "Cannot set property _startTime of undefined". In debug mode it shows that pollerInstance is undefined.
I'm using v.2010.3.1109.35 of Telerik.Web.UI

Is it a know bug and if yes, has it been fixed in the latest version?
Thank a lot in advance!
Best,
Andy

Upload (Obsolete)

answered on 17 Mar 2014

1 answer

179 views

NeedDataSource with RadGrid Dynamic Column Added Problem

Here is my Code, Page_load method and RadGrid1_NeedDataSource.

The result is so weird, load in the 1 page, everything work find, when click next or 2nd page, the problem is occurs. The diagram show at Attach files.



Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

RadGrid1.ID = "RadGrid1"

zzz.Controls.Add(RadGrid1)

AddHandler Me.RadGrid1.NeedDataSource, New GridNeedDataSourceEventHandler(AddressOf Me.RadGrid1_NeedDataSource)

RadGrid1.Visible = True

RadGrid1.AllowPaging = True

RadGrid1.AllowSorting = True

RadGrid1.AllowMultiRowSelection = True

RadGrid1.MasterTableView.AutoGenerateColumns = False

RadGrid1.PageSize = 5

RadGrid1.AutoGenerateColumns = False

RadGrid1.MasterTableView.EditMode = GridEditMode.Batch

RadGrid1.ClientSettings.Selecting.AllowRowSelect = True

RadGrid1.EnableViewState = False

RadAjaxManager1.EnableAJAX = True

End Sub

Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs)

Dim ConnString As String = ConfigurationManager.ConnectionStrings("myConnectionString").ConnectionString

Dim conn As SqlConnection = New SqlConnection(ConnString)

Dim adapter As SqlDataAdapter = New SqlDataAdapter

adapter.SelectCommand = New SqlCommand("SELECT * FROM Product", conn)

conn.Open()

Try

adapter.Fill(myDataTable)

Finally

conn.Close()

End Try

RadGrid1.DataSource = myDataTable

Dim boundColumn As GridBoundColumn

For Each col As System.Data.DataColumn In myDataTable.Columns

boundColumn = New GridBoundColumn()

RadGrid1.MasterTableView.Columns.Add(boundColumn)

boundColumn.DataField = col.ColumnName

boundColumn.HeaderText = col.ColumnName

If col.ColumnName = "proID" Then

'boundColumn.Visible = False

boundColumn.HeaderText = "ProductID"

ElseIf col.ColumnName = "proName" Then

boundColumn.HeaderText = "Product Name"

ElseIf col.ColumnName = "proQty" Then

boundColumn.HeaderText = "Product Quantity"

ElseIf col.ColumnName = "unitPrice" Then

boundColumn.HeaderText = "Price"

End If

Next

End Sub

Grid

answered on 17 Mar 2014

1 answer

90 views

rsAppointmentBg.png not found

Hello,
In our Event logs we have a Warning indicating the rsAppointmentBg.png image cannot be found. We do not reference any telerik images directly in our css, we only reference the dlls. We are using the ASP.net Ajax RadScheduler. How can we fix this issue? We are using Telerik.Web version 2013.1.417.40 with .Net Framework 4.0.

The actual error is:

An error occurred processing a web or script
resource request. The requested resource
'pTelerik.Web.UI.Skins|Telerik.Web.UI.Skins.Office2010Blue.Scheduler.rsAppointmentBg.png'
does not exist or there was a problem loading it.

Thanks

Scheduler

answered on 17 Mar 2014

3 answers

428 views

RadComboBox Change Not Firing

Hi All,

I've implemented a C# code-behind RadComboBox with a SqlDataSource and RadComboBoxFilter.Contains in order to provide search-box-like functionality to the users. I run my code with the selected value using a RadButton.

The Users would like to be able to just hit enter or click on the desirable values to initiate the filter process. The SelectedIndexChanged method does not appear to be firing. I have AutoPostBack = true. Being able to just type and enter would be the most desirable option. Can anyone please help?

Thanks,
Mark

ComboBox

answered on 17 Mar 2014

5 answers

244 views

Grid Itemcommand Event not fire When used ImageButton

Hello,
        When i am using <telerik:GridButtonColumn ButtonType="ImageButton" Text="Select" CommandName="select" ImageUrl="~/App_Themes/WebBlue/Grid/images/Hand.png" CommandArgument="Select" >
in gridview instead of button then gridview command event not fired
        So describe why this event not fired when used Imagebutton instead of PushButton and how to overcome this problem.
        Reply me as soon as possible

Regards,
Bhavesh Rana

Grid

answered on 17 Mar 2014