Questions on UI for ASP.NET AJAX Forum

1 answer

303 views

I've got a theme set for my entire project in the App_Themes folder. Within this folder I have a style sheet which, among other things, specifies the style for all radGrids. I now have a requirement to completely change the style on one particular grid within one user control. There are other grids in this user control that shouldn't change.

What's the best way to override the style on one grid on one user control?

Thanks.

Grid

answered on 02 Apr 2019

3 answers

604 views

Getting control in a listview via JavaScript

I apologize if this has been answered elsewhere. I have what, I think, is a simple problem. I am trying to access one of the controls in the LayoutTemplate of a RadListView via javascript. Here is the ListView code:

<telerik:RadListView ID="rlvApproval" runat="server">

<LayoutTemplate>

<table>

<tr>

<td style="width: 250px;">

</td>

<td style="width: 200px; font-weight: bold;">

</td>

</tr>

</table>

<asp:PlaceHolder ID="itemplaceholder" runat="server" />

<table>

<tr>

<td style="width: 250px;">

<asp:Label ID="lblName" runat="server" Text="Total" Font-Bold="true" />

</td>

<td style="width: 200px; font-weight: bold;">

<telerik:RadNumericTextBox ID="txtTotalValue" runat="server" ReadOnly="true" DataType="System.Decimal"

Skin="Web20">

<NumberFormat DecimalDigits="0" />

</telerik:RadNumericTextBox>

</td>

</tr>

</table>

</LayoutTemplate>

<ItemTemplate>

<table>

<tr>

<td style="width: 250px;">

<asp:Label ID="lblName" runat="server" Text='<%# Eval("name") %>' />

</td>

<td style="width: 250px;">

<telerik:RadNumericTextBox ID="txtValue" runat="server" DataType="System.Decimal"

Skin="Web20" DbValue='<%# DataBinder.Eval(Container.DataItem, "value") %>' MaxValue="100"

MinValue="0" AutoPostBack="false" >

<NumberFormat DecimalDigits="0" />

<ClientEvents OnValueChanged="ValidateWeighting" />

</telerik:RadNumericTextBox>

</td>

</tr>

</table>

</ItemTemplate>

<EmptyDataTemplate>

<div class="message">

<asp:Label ID="lblEmptyMessage" runat="server" SkinID="messageBig" Text="Error loading approval information..." />

</div>

</EmptyDataTemplate>

</telerik:RadListView>

Whenever the txtValue is updated, I fire a javascript function to determine if the values are 100% based on the current total value that is set in the codebehind. Here is the code I have that is working:

function ValidateWeighting(sender, eventArgs) {

var object = document.getElementById('ctl00_ContentPlaceHolder1_Weighting1_rlvApproval_txtTotalValue_text');

var object2 = document.getElementById('<%= rlvApproval.ClientID %>');

var current = eval(object.value);

var old = eventArgs.get_oldValue();

var newval = eventArgs.get_newValue();

var tmp = current + (newval - old);

if (tmp == 100) {

document.getElementById('<%= btnSave.ClientID %>').disabled = false;

}

else {

document.getElementById('<%= btnSave.ClientID %>').disabled = true;

}

object.value = tmp;

}

However, The id to get the object for the txtTotalValue control was obtained through "View Source". What I am looking for is the right way to do this that avoids browser differences, web server differences, etc.
Any thoughts?

ListView

answered on 02 Apr 2019

0 answers

119 views

RadGrid delete confirmation does not work on new version of Chrome 73+

Hello,

More details about this issue you can find here:

RadGrid delete confirmation does not work on new version of Chrome 73+

Regards,
Eyup
Progress Telerik

Get quickly onboarded and successful with your Telerik and/or Kendo UI products with the Virtual Classroom free technical training, available to all active customers. Learn More.

Grid

asked on 02 Apr 2019

2 answers

1.0K+ views

Uncaught TypeError: Cannot read property 'cells' of undefined

Getting error Uncaught TypeError: Cannot read property 'cells' of undefined When i Click on an item from a RadContextMenu. This page has a Rad-scheduler.

Scheduler

answered on 02 Apr 2019

7 answers

1.0K+ views

Image Manager - JSON parse error when uploading images and Image Manager has EnableAsyncUpload set to True

Hello,

I'm experiencing an issue and I hope you can help me with this. I saw a similar thread but it's from 2017 and it doesn't answer all of my concers, so that´s why I open a new one. But if you prefer, I can continue in the other one.

Anyway, we are using RadEditor with ImageManager.

When users of our application are trying to upload an image, the upload seems to be going on forever (there is a yellow dot by the image's name) and when I peek at the Chrome's Dev Tool console (Chrome is updated) , an "Unexpected token < in JSON at position 453" error is logged.

I attached an image showing this error message.

But when I changed "EnableAsyncUpload" property to false, it uploads correctly and saves the image in the specified location without any problem.

I can leave it like this but it bugs me a lot not to know why the error appears.

Is it really ok leaving EnableAsyncUpload in False? Is there a way to fix the JSON issue?

Thank you!

PS: just in case, snippets of how it's declared the editor in the ascx file and how it's configured in the code behind

<div id="HtmlBodyCell" style="<%= HtmlBodyCellStyle %>">

<Telerik:RadEditor ID="HtmlBodyTextArea" runat="server" Width="475px" Height="400px" />

</div>

string[] imgPath = { vpath };

HtmlBodyTextArea.EnableFilter(Telerik.Web.UI.EditorFilters.MakeUrlsAbsolute);

HtmlBodyTextArea.ImageManager.UploadPaths = imgPath;

HtmlBodyTextArea.ImageManager.ViewPaths = imgPath;

HtmlBodyTextArea.ImageManager.MaxUploadFileSize = 200000;

HtmlBodyTextArea.ImageManager.EnableAsyncUpload = true;

HtmlBodyTextArea.ImageManager.RenderMode = RenderMode.Lightweight;

Editor

answered on 02 Apr 2019

3 answers

144 views

[Solved] how RadComboBox in table header change all RadComboBoxs in asp.net Repeater

Hello,

please I need your help in client side code ,

I need javascript code that explain how can RadComboBox in header affects on all RadComboBoxs in asp repeater rows,

how can set same value and same text .

thanks

ComboBox

answered on 01 Apr 2019

0 answers

121 views

How to delete a wizard steps based on index

I have created a dynamic wizard steps. I want to delete the wizardsteps based on index. How can do this.

Ascx Page:

<telerik:RadButton runat="server" RenderMode="Lightweight" ID="rbtnRemoveSteps" Text="Remove Steps" AutoPostBack="false" OnClientClicked="RemoveSteps" ></telerik:RadButton>

Ascx Script:

function RemoveSteps() {

var ajaxmanager = null;

ajaxmanager = $find('<%=RadAjaxManager.GetCurrent(this.Page).ClientID%>');

ajaxmanager.ajaxRequest('DeleteSteps');

}

Parent Page:

case "DeleteSteps":

if (UIControlsWizard.WizardSteps.Count >=0)

{

int activeIndex = UIControlsWizard.ActiveStepIndex;

UIControlsWizard.WizardSteps.RemoveAt(activeIndex);

}

break;

Wizard

asked on 01 Apr 2019

1 answer

457 views

Hidden Fields inside InsertItemTemplate

Hi,I have a problem with RadDataForm and HiddenField. I have a scenario like this:

<telerik:RadDataForm runat="server" ID="radDataForm" DataSourceID="myDataSource">

<asp:HiddenField ID="hiddenField" runat="server" Value='<%# Bind("MyProperty") %>' />

<telerik:RadComboBox ID="myCombo" runat="server" SelectedValue='<%# Bind("MyProperty2") %>' />

</InsertItemTemplate>

</telerik:RadDataForm>

I Just semplify my code. The problem is that radComboBox (as other telerik controls) works fine and i bind my object passed in data source, while the property bounded throught asp:HiddenField doesn't work, even the value is not null.

Any suggestions?

Thanks

DataForm

answered on 01 Apr 2019

1 answer

250 views

RadGrid - Custom fire command with empty grid

Hi,
In my RadGrid, I have a Custom RadToolbar for implement my actions. Inside this toolbar I have a RadButton

<telerik:RadToolBarButton Text="<%$ Resources:AdminLoc, btnAddDailyEquipment %>"

ImageUrl="~/Web/Images/Icons/ress_equipement.gif"

Group="DailyEquipment" CommandName="AddDailyResource" CommandArgument="DailyEquipment"

Value="DailyEquipment" Visible="<%# KeyValueTools.GetActivitekRepentignyDev %>">

My Toolbar implement the OnClientButtonClicked attribute who calling a JS function with this code

case "AddDailyResource":<br> $find('<%= RgPanelSummary.ClientID%>').get_masterTableView().fireCommand(args.get_item().get_commandName(), argument);<br> break;

If I have more than one element in my grid. The server-side ItemCommand is fired

But my problem occuring when I have no data in my RadGrid. The server-side called the ItemDataBound (RadGrid), the PageLoad, PageRender, etc. But the ItemCommand is never called. I have this problem for each custom action "Print, DailyEquipement". But If I using a default Radgrid action (DeletedSelected, InitInsert) the ItemCommand is called.

Can I resolve my problem? And If Yes how ?
Thank you and have a good day

Grid

answered on 01 Apr 2019

7 answers

289 views

[Solved] No Check/Uncheck all event

Hi,

Why isn't there a check/uncheck all event for the combo box?

If I need to have a second related form element I can't do it from this as there is no JS event for when items are checked. Yes you can get individual checks but there is no event raised when all are done.

From looking at the forums this is appears to have been going on for a while. Please advise on a way to get notified on the client when the check all box is checked.

Thanks,

Jon

ComboBox

answered on 31 Mar 2019