Questions on UI for ASP.NET AJAX Forum

4 answers

74 views

When the binary image in database is null the radGrid does render <img> tag with an empty src which causes displaying a missing image placeholder. I know that I can display a default image instead. But in most cases we need to display nothing. How to do it declaratively? If not possible, please add this feature into the next releases.

Grid

answered on 22 Aug 2012

7 answers

333 views

<br/>'s Removed

Hi,

I am having a problem with trailing <br> tags being removed.

Steps to reproduce in demo application
1) Go into HTML Mode
2) Enter "<br/><br/>"
3) Go to Design Mode
4) Go to HTML Mode
5) Note that the source shows only "<br/>"

I attempted the fix noted below. It does not work. The trailing <br/> has already been removed by the time it hits my breakpoint.

<script type="text/javascript">

Telerik.Web.UI.Editor.RemoveExtraBrakes.prototype.getHtmlContent = function (content) {

return content;

}

Telerik.Web.UI.Editor.StripJunkFilter.prototype.getHtmlContent = function (content) {

return content;

}

</script>

Editor

answered on 22 Aug 2012

14 answers

260 views

After ajax postback, CSS is reloaded with incorrectly encoded &

Hi,

After an AJAX postback occurs, I notice that the CSS is reloaded but with an incorrectly html encoded & instead of &.

This is a bit hard to explain, so please see it for yourself at this site: http://tinyurl.com/4zcuexz

The three cascading drop downs on the right of the screen use Telerik Ajax.

To reproduce the bug:

1) Open Firebug's CSS panel, and you will see that there is a CSS file called something like DependencyHandler.axd?s=L2Nzcy9tYWluLmNzczs%3d&t=Css&cdv=97

2) Initiate an ajax postback by making a selection from the top drop down.

3) Now look in Firebug and you will see that a new CSS stylesheets has appeared, with an incorrectly encoded & in the querystring:
DependencyHandler.axd?s=L2Nzcy9tYWluLmNzczs%3d&t=Css&cdv=97

This website was built a long time ago, and we are using version 2010.3.1317.40 of Telerik.

Ajax

answered on 22 Aug 2012

9 answers

662 views

NullReferenceException error when using RadScriptManager

Hi,

I've been encountering a problem when I use RadScriptManager. In the master page, I registered the Telerik.Web.UI and added the RadScriptManager.

    
            <%@ Register Assembly="Telerik.Web.UI, Version=2008.1.619.20, Culture=neutral, PublicKeyToken=121fae78165ba3d4" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

and added the RadScriptManager:

    
            <telerik:RadScriptManager ID="ScriptManager1" runat="server" EnableTheming="True"/>

But when I try to use this master page, I get an error. The error says:

NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Web.UI.WebResource.Exists(String path, String applicationPath) +257
   Telerik.Web.UI.RadScriptManager.OnPreRender(EventArgs e) +80
   System.Web.UI.Control.PreRenderRecursiveInternal() +77
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Control.PreRenderRecursiveInternal() +161
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360

I am not sure what the problem is or where to start looking. I tried removing the RadScriptManager and use <asp:ScriptManager> instead and the error is gone. Can somebody help me with this?

Thank you!

Regards,
Francis

General Discussions

answered on 22 Aug 2012

3 answers

157 views

How to prevent submenu from displaying

How do you prevent the RadMenu from displaying the submenu items as a drop down.

For example:

+ Home
+ Services
   - Coding
   - Web Design
   - SQL Server
+ Contact

I only want to display: Home | Services | Contact

Thanks!

Menu

answered on 22 Aug 2012

25 answers

462 views

Setup failing (2011 Q1)

I'm trying to install Telerik ASP.NET 2011 Q1 and it's failing.

First download installation log: http://dl.dropbox.com/u/1929707/Telerik.Web.UI_2011_1_315_Dev.msi.log
Second download installation log: http://dl.dropbox.com/u/1929707/Telerik.Web.UI_2011_1_315_Dev%20%281%29.msi.log

Thanks,
Daryl

Installer and VS Extensions

answered on 22 Aug 2012

1 answer

71 views

How to load Grid in UserControl using Web Services

I can load a RadGrid in the main page using get_masterTableView(). However, If I have the grid in an ASCX page, what do I need to do to load that grid from the main ASPX page? I can get a reference to the grid:
var myGrid = document.getElementById('<%= ((RadGrid)myControl.FindControl("RadGrid1")).ClientID %>')
but get_masterTableView() is not valid for myGrid.

Grid

answered on 22 Aug 2012

3 answers

167 views

ValidationGroups dont work within RadGrid

I have been adding validation to a RadGrid, whenever i try to add any Validation groups it causes the RequiredFieldValidator to not work at all

Is there any work around for this? I would like to have a summary of errors listed

<telerik:RadGrid ID="RadGrid2" runat="server" Width="100%"

AllowAutomaticInserts="True"

AllowAutomaticUpdates="True"

AllowPaging="True"

AllowMultiRowEdit="false"

AllowMultiRowSelection="false"

AutoGenerateColumns="False"

DataSourceID="SqlDataSource2"

EnableLinqExpressions="false"

GridLines="None"

OnItemCreated="RadGrid2_ItemCreated"

OnItemDataBound="RadGrid2_ItemDataBound"

OnItemUpdated="RadGrid2_ItemUpdated"

OnItemInserted="RadGrid2_ItemInserted"

OnDataBound="RadGrid2_DataBound"

OnItemCommand="RadGrid2_ItemCommand"

OnPreRender="RadGrid2_PreRender">

<PagerStyle Mode="NextPrevAndNumeric" />

<MasterTableView Width="100%" CommandItemDisplay="Bottom" EditMode="InPlace"

DataSourceID="SqlDataSource2" HorizontalAlign="NotSet" AutoGenerateColumns="false">

<Columns>

<telerik:GridBoundColumn DataField="ProductTypeId" HeaderText="ProductTypeId" SortExpression="ProductTypeId" UniqueName="ProductTypeId" Visible="false">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ProductAttributeDefKeyOri" HeaderText="ProductAttributeDefKeyOri" SortExpression="ProductAttributeDefKeyOri" UniqueName="ProductAttributeDefKeyOri" Visible="false">

</telerik:GridBoundColumn>

<telerik:GridDropDownColumn ListTextField="Name" ListValueField="ProductAttributeDefKey" DataSourceID="SqlDataSource3" HeaderText="Attribute" DataField="ProductAttributeDefKey" UniqueName="ProductAttributeDefKey" DropDownControlType="DropDownList" EnableEmptyListItem="true" EmptyListItemText="Select an attribute..." EmptyListItemValue="">

</telerik:GridDropDownColumn>

<telerik:GridTemplateColumn DefaultInsertValue="1" DataField="SortOrder" HeaderText="Sort Order" SortExpression="SortOrder" UniqueName="SortOrder" ForceExtractValue="Always" >

<EditItemTemplate>

<telerik:RadNumericTextBox runat="server" ID="tbSortOrder"

DbValue='<%# Bind("SortOrder") %>' ShowSpinButtons="true" SpinDownCssClass="" SpinUpCssClass="" Width="50px" MinValue="1" MaxValue="999" NumberFormat-DecimalDigits="0" CssClass="textbox_increment">

</telerik:RadNumericTextBox>

<asp:RequiredFieldValidator runat="server" ControlToValidate="tbSortOrder" ErrorMessage="*" ValidationGroup="grid2"></asp:RequiredFieldValidator>

</EditItemTemplate>

<ItemTemplate>

<%# Eval("SortOrder")%>

</ItemTemplate>

<ItemStyle CssClass="MyImageButton" />

</telerik:GridTemplateColumn>

<telerik:GridCheckBoxColumn DataField="Enabled" HeaderText="Enabled" SortExpression="Enabled" UniqueName="Enabled" DefaultInsertValue="Checked" >

</telerik:GridCheckBoxColumn>

<telerik:GridCheckBoxColumn DataField="Required" HeaderText="Required" SortExpression="Required" UniqueName="Required" DefaultInsertValue="1">

</telerik:GridCheckBoxColumn>

<telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn">

<ItemStyle CssClass="MyImageButton" />

</telerik:GridEditCommandColumn>

</Columns>

<EditFormSettings ColumnNumber="2" CaptionFormatString="Edit Attribute" InsertCaption="Add Attribute">

<FormTableItemStyle Wrap="true"></FormTableItemStyle>

<FormCaptionStyle CssClass="EditFormHeader"></FormCaptionStyle>

<FormMainTableStyle GridLines="None" CellSpacing="0" CellPadding="0" BackColor="White" Width="100%" />

<FormTableStyle CellSpacing="0" CellPadding="1" BackColor="White" />

<FormTableAlternatingItemStyle Wrap="False"></FormTableAlternatingItemStyle>

<PopUpSettings Modal="true" />

<EditColumn ButtonType="ImageButton" InsertText="Add Attribute" UpdateText="Update Attribute" UniqueName="EditCommandColumn1" CancelText="Cancel Edit"></EditColumn>

<FormTableButtonRowStyle HorizontalAlign="Right" CssClass="EditFormButtonRow"></FormTableButtonRowStyle>

</EditFormSettings>

<CommandItemSettings AddNewRecordText="Add Attribute" />

</MasterTableView>

</telerik:RadGrid>

protected void RadGrid2_ItemCreated(object sender, Telerik.Web.UI.GridItemEventArgs e)

{

if (e.Item is GridEditableItem && e.Item.IsInEditMode)

{

//attribute validation

GridEditableItem item = e.Item as GridEditableItem;

DropDownList dropDownList1 = item["ProductAttributeDefKey"].Controls[0] as DropDownList;

GridDropDownColumnEditor editor = (GridDropDownColumnEditor)item.EditManager.GetColumnEditor("ProductAttributeDefKey");

TableCell cell = (TableCell)editor.ContainerControl;

RequiredFieldValidator validator = new RequiredFieldValidator();

validator.ControlToValidate = dropDownList1.ID;

validator.ErrorMessage = "*";

validator.ValidationGroup = "grid2";

cell.Controls.Add(validator);

}

if (e.Item is GridEditableItem && e.Item.IsInEditMode)

{

if (e.Item.OwnerTableView.IsItemInserted)

{

//set required and enabled default values for inserting

GridEditableItem edititem = (GridEditableItem)e.Item;

CheckBox chkbx = (CheckBox)edititem["Enabled"].Controls[0];

chkbx.Checked = true;

chkbx = (CheckBox)edititem["Required"].Controls[0];

chkbx.Checked = true;

}

Grid

answered on 22 Aug 2012

1 answer

75 views

RadTextBox - Not available?

Hi, I was searching for the telerik radtextbox in my asp.net project and I can't find the control. Am I able to use this control in my web project? If so, could you tell me how I would get that dll into my project so I can start using the control?

Thanks,
Ben

Input

answered on 22 Aug 2012

3 answers

89 views

Classic Radcontrols to ASP.NET Ajax Conversion Issues

I had several issues when I converted my classic radcontrols Q3 2008 to asp.net ajax Q1 2012. I had updated as well the framework from .Net 2.0 to .Net 4.0 and using Visual Studio 2010 from VS2k5. Now only button works well with RadAjaxManager. All my asp Dropdown, Checkbox, Radiobutton etc dont fire postback anymore and no longer works with RadAjaxManager. Any reason why this happen? Any workaround?

General Discussions

answered on 22 Aug 2012