Questions on UI for ASP.NET AJAX Forum

110,817 questions

2 answers

242 views

[Solved] How to make RadBinaryImage invisible in Javascript

Hello,

I have a RadBInaryImage and i would like to change the visibility from javascript. Right now I am making the source empty but i still see the empty image with cross mark. So i wanted it to be invisible.

var OldImage = $get("<%= rbiClientImage.ClientID %>");

if (OldImage != null)

{

OldImage.src = "";

}

Is there any property to make the binaryimage invisible?

Appreciate the help
Thanks

BinaryImage

answered on 13 Mar 2012

1 answer

446 views

[Solved] Automatic filter on telrik grid with auto generated column

Is there any way to apply excel like automatic filter on telrik grid ? I have autogeneratedcolumn=true and based on condition I am showing the column

<telerik:RadGrid ID="gvinvoice" Width="98%" AllowPaging="true" PageSize="10" runat="server"
                                AutoGenerateColumns="true" 
                                OnPageIndexChanged="gvinvoice_PageIndexChanged" 
                                ShowFooter="True">
                                <PagerStyle Mode="NextPrevAndNumeric" />
                            </telerik:RadGrid>


So, at design time I am not sure the number and name of the column. How can I apply filter to these columns ?

Grid

answered on 13 Mar 2012

1 answer

816 views

Script controls may not be registered before PreRender

Ok, I'm at the bottom of the pit of despair!
Have tried for days to resolve this problem, so maybe hoping someone here can help. I've searched the web and tried all the advice given, to no avail. Here is the problem.

I built a local project with RAD grid, cloud, combos etc and it worked fine. However, when I integrated it into out CMS, the problems started. The man error message is:

Script controls may not be registered before PreRender

The problem is something to do with this piece of code:

<telerik:RadScriptManager ID="RadScriptManager1" EnableHandlerDetection="false" runat="server">

</telerik:RadScriptManager>

The pages where I've tried this :
1. The master page
2. The ascx page

Doesn't matter where I position this line of code, I still get either the above error message. I've also tried these 2 different code blocks (not at the same time obviously) in the code behind of the ascx page:

protected override void OnInit(EventArgs e)

{

if (ScriptManager.GetCurrent(this.Page) == null)

{

ScriptManager scriptManager = new ScriptManager();

scriptManager.ID = "myScriptManager";

scriptManager.EnablePartialRendering = true;

this.Page.Form.Controls.Add(scriptManager);

}

base.OnInit(e);

}

protected override void OnPreRender(EventArgs e)

{

if (ScriptManager.GetCurrent(this.Page) == null)

{

ScriptManager scriptManager = new ScriptManager();

scriptManager.ID = "myScriptManager";

scriptManager.EnablePartialRendering = true;

this.Page.Form.Controls.Add(scriptManager);

}

base.OnPreRender(e);

}

Here is the stack trace:

[InvalidOperationException: Script controls may not be registered before PreRender.]

System.Web.UI.ScriptControlManager.RegisterScriptControl(TScriptControl scriptControl) +348689

System.Web.UI.ScriptManager.RegisterScriptControl(TScriptControl scriptControl) +66

Telerik.Web.UI.RadWebControl.RegisterScriptControl() +42

Telerik.Web.UI.RadWebControl.ControlPreRender() +15

Telerik.Web.UI.RadFormDecorator.ControlPreRender() +464

Telerik.Web.UI.RadWebControl.OnPreRender(EventArgs e) +22

System.Web.UI.Control.PreRenderRecursiveInternal() +80

System.Web.UI.Control.PreRenderRecursiveInternal() +171

System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

I'm pretty much as my wits end with this. Any ideas Telerik, community?
Many thanks,
Alan

ScriptManager and StyleSheetManager

answered on 13 Mar 2012

13 answers

638 views

Blurred not clear text in Disabled Combobox

Hi Team,
I have a problem with the combo boxes i'm using. Whenever i disable the comboboxes the text inside them becomes blurry and not clear. If i place the mouse over the combobox the text becomes fine. But if i move the mouse a way from the combobox it becomes blurry and not clear again.
Is this a defect in the Telerik component i'm using? Could you help please.
Thanks,

ComboBox

answered on 13 Mar 2012

1 answer

122 views

Item update event is not firing

Hi,

I have wrote this in my row click,

function RowClick(sender, eventArgs) {

if (editedRow ) {

hasChanges = false;

if (confirm("Update changes?")) {

$find("<%= RadGrid1.ClientID %>").get_masterTableView().updateItem(editedRow);

}

But still my itemupdate event is not firing.

Help me
Thnx in advance

Grid

answered on 13 Mar 2012

10 answers

419 views

Skin lost on non-ajax post back

Hi Guys,

I've been using RadControls for a while now and I've been able to fix most of my issues but this one has me completely stumped. Thankfully, I was able to recreate it in an empty project.

ASPX:

    
                    <asp:ScriptManager ID="ScriptManager1" runat="server">  
        
                    </asp:ScriptManager> 
        
                    <asp:UpdatePanel ID="UpdatePanel1" runat="server">  
        
                        <ContentTemplate> 
        
                            <telerik:RadDatePicker ID="RadDatePicker1" runat="server" Skin="WebBlue">  
        
                            </telerik:RadDatePicker> 
        
                            <br /> 
        
                            <br /> 
        
                            <asp:Button ID="Button1" runat="server" Text="toggle visibility" /> 
        
                        </ContentTemplate> 
        
                    </asp:UpdatePanel> 
        
                    <br /> 
        
                    <asp:Button ID="Button2" runat="server" Text="post back" />

VB:

    
                Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs) Handles Button1.Click  
        
                    Me.RadDatePicker1.Visible = Not Me.RadDatePicker1.Visible  
        
                End Sub

To recrate the problem:
1. Press the 'toggle visibility' button to hide the RadDatePicker.
2. Press the 'post back' button to do a non-ajax postback.
3. Press 'toggle visibility' again to show the RadDatePicker.
4. Now open the calendar of the date picker and it will have lost its skin.

This happens no matter what browser I run it in. I have also already tried swapping out the Rad UpdatePanel/ScriptManager for MS AJAX ones. I have seen similar things happen with other Rad controls in the same situation (which is why I'm posting this in general discussions) but I'm just using DatePicker here for simplicity. Thanks in advance for any help you can give me.

Calendar

answered on 13 Mar 2012

1 answer

127 views

RadPanelbar inside RadAjaxPanel

hi if the RadPanelBar is inside RadAjaxPanel on each postback the panelbar not exapnded fully its hanging on top
when i click on the RadPanelbar then only it exapnded
why this thing happening
how to solve this problem?
this is my aspx , i set the height and width for table "maintable" at client side

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Test.aspx.vb" Inherits="Test" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

<style type="text/css" >

html,body,form

{

padding:0px;

margin:0px;

width:100%;

height:100%;

}

</style>

<script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script>

<script language="javascript" type="text/javascript" >

window.onload = SetTableHieght;

window.onresize = SetTableHieght;

function SetTableHieght() {

var windowHight = $(window).height() - 100;

var windowWidth = $(window).width() - 100;

$("#maintable").attr("style", "height:" + windowHight.toString() + "px;width:" + windowWidth.toString() +"px;");

}

function OnResponseEnd(sender, args) {

SetTableHieght();

}

</script>

</head>

<body >

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server">

</telerik:RadScriptManager>

<telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" BorderColor="Orange" ClientEvents-OnResponseEnd="OnResponseEnd" Height="100%" Width="100%">

<table cellpadding="0" cellspacing="0" id="maintable" >

<tr>

<td style="height:100%;width:100%;" >

<telerik:RadPanelBar ID="SidePanelBar" Height="100%" Width="100%" runat="server" ExpandMode="FullExpandedItem" >

<Items>

<telerik:RadPanelItem Expanded="true" Selected="true" Text="Workspace" >

<ContentTemplate>

<telerik:RadTreeView ID="NumTree" runat="server">

<Nodes>

<telerik:RadTreeNode Text="1" ></telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeView>

</ContentTemplate>

</telerik:RadPanelItem>

<telerik:RadPanelItem Text="My Views" >

<ContentTemplate>

<telerik:RadTreeView ID="AlpsTree" runat="server">

<Nodes>

<telerik:RadTreeNode Text="a" ></telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeView>

</ContentTemplate>

</telerik:RadPanelItem>

</Items>

</telerik:RadPanelBar>

</td>

</tr>

</table>

<telerik:RadButton ID="RadButton1" runat="server" Text="RadButton">

</telerik:RadButton>

</telerik:RadAjaxPanel>

</form>

</body>

</html>

PanelBar

answered on 13 Mar 2012

1 answer

133 views

ASP.NET - Web Pages, Web Forms or MVC

Ok I just want to get your opinions! I started as a classic asp designer and now I have been working with Web Forms for the last 2 years.

I am wondering which one of these technologies I should master to further enhance my career.
I like the idea of Web Pages being more like the way classic ASP was designed but I want to learn the best way to proceed in the future.

General Discussions

answered on 13 Mar 2012

1 answer

132 views

[Solved] RadToolBarButton and returning a file

Hi,

I want to sent a text-file to the client in response of clicking a toolbarbutton.
The code to send the file:

Response.ContentType = "text/txt";

Response.AppendHeader("Content-Disposition", "attachment; filename=project_input_export.txt");

Response.TransmitFile(Server.MapPath("~/Export/project_input_export.txt"));

Response.End();

When I click on the the toolbarbutton I get the following error:
=============
Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error parsing near '##EXPORT##: 13-mrt-1'.
=============

When I call the same code from a RadButton the file is transmitted correctly.
Why can't I get the file from a toolbarbutton?

Paul

ToolBar

answered on 13 Mar 2012

2 answers

146 views

Treeview node drag/drop problem with node image

Hi,
I am working on treeview drag and drop node. In my tree structure i am displaying a gear image at each node with mouse move event. Problem is when we drag a node then a small portion of the image also display while dragging node (image 1) that does not look good.

In image 2 i have show my node structure where i am having span with 80% width that is causing problem during drag and drop. If i change my span with to 100% then small portion of image does not display during drag and drop but gear icon drop down at mouse move as shown in image 3.

   <div style="width:100%; min-height:22px; overflow:hidden">

                                <span style="float:left;font-family:Arial;font-weight:bold;font-size:13px; width: 80%">
                                <%# DataBinder.Eval(Container, "Text") %>
                                </span>

                            <img class="treeGear" src="../img/gearsgreybtn.png" alt="Options" width="38px" height="22px" />
</div>

Could any one please help? Any help will be appriciated.

TreeView

answered on 13 Mar 2012

Top users last month