Questions on UI for ASP.NET AJAX Forum

1 answer

174 views

ListView Filtering Always Returns No results

I have not been able to figure out why I am not getting the filter results I am expecting. In fact I always get no results.

When the page first loads all the data is displayed as expected.

When I enter as search query and click the Search button the RadListView control refreshes with no results. I see the spinner so I know it posted back via AJAX.

I debug the C# code and I can confirm that the search query value is passed to the BuildExpression for the filter. No errors or exceptions are thrown.

If I submit an empty query it should just Clear the Filter and all results should show, but that does not happen.

The datasource is a List<DeviceSearchResult>.

Any ideas?

Here is my markup:

<asp:Panel ID="pnlSearchView" runat="server" Visible="True">

<h1>Search View</h1>

<telerik:RadAjaxManager ID="RadAjaxManager" runat="server">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="txtDeviceSearchQuerySubmit">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="lvDeviceSearchResults" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<asp:TextBox ID="txtDeviceSearchQuery" runat="server"></asp:TextBox>

<asp:Button ID="txtDeviceSearchQuerySubmit" runat="server" OnClick="txtDeviceSearchQuerySubmit_OnClick" Text="SEARCH"/>

<telerik:RadListView ID="lvDeviceSearchResults" RenderMode="Lightweight" runat="server"

OnNeedDataSource="lvDeviceSearchResults_NeedDataSource"

ItemPlaceholderID="phDeviceSearchResult">

<LayoutTemplate>

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

</LayoutTemplate>

<ItemTemplate>

<%# ShowGroupRow(Eval("DeviceManufacturer").ToString())=="yes"

? "<div class=\"manufacturer\"><strong>"+Eval("DeviceManufacturer")+"</strong></div>"

: "" %>

<div>- <%# Eval("DeviceName") %> | <%# Eval("DevicePackage") %> | <%# Eval("DevicePin") %></div>

<asp:ListView ID="lvDeviceSearchResultAdapters" runat="server" ItemPlaceholderID="phDeviceSearchResultAdapters" DataSource='<%# Eval("DeviceAdapters") %>'>

<LayoutTemplate>

<ul><asp:PlaceHolder ID="phDeviceSearchResultAdapters" runat="server"/></ul>

</LayoutTemplate>

<ItemTemplate>

<li><%# Container.DataItem.ToString() %></li>

</ItemTemplate>

</asp:ListView>

</ItemTemplate>

</telerik:RadListView>

</asp:Panel>

Here is my C#:

protected void lvDeviceSearchResults_NeedDataSource(object sender, RadListViewNeedDataSourceEventArgs e)

{

lvDeviceSearchResults.DataSource = TempDeviceSearchResults.OrderBy(d => d.DeviceManufacturer).ThenBy(d =>d.DeviceName);

}

protected void txtDeviceSearchQuerySubmit_OnClick(object sender, EventArgs e)

{

lvDeviceSearchResults.FilterExpressions.Clear();

var query = txtDeviceSearchQuery.Text.Trim();

if (!string.IsNullOrEmpty(query))

{

lvDeviceSearchResults.FilterExpressions.BuildExpression(ex => ex

.Contains("DeviceName", query)

);

}

lvDeviceSearchResults.Rebind();

}

ListView

answered on 22 Mar 2016

14 answers

220 views

[Solved] SelectedDate returns null

Hi,

after the last update (2013.1.403.40) we noticed a changed behaviour on the RadDateTimePicker component. If the user does not tab out from the component or goes to another input field before he does a callback the SelectedDate is null.

I'm pasting in a test project

Best regards

Robert

ASPX

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="Default" %>

<!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>

<telerik:RadStyleSheetManager ID="RadStyleSheetManager1" runat="server" />

</head>

<body>

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

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

<Scripts>

<%--Needed for JavaScript IntelliSense in VS2010--%>

<%--For VS2008 replace RadScriptManager with ScriptManager--%>

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />

<asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />

</Scripts>

</telerik:RadScriptManager>

<script type="text/javascript">

//Put your JavaScript code here.

</script>

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">

</telerik:RadAjaxManager>

<div>

Instructions. Change time of the RadDateTimePicker component and press the TEST button.

</div>

<div>

<telerik:RadDateTimePicker ID="rdtpTimeStamp" runat="server">

</telerik:RadDateTimePicker>

<hr />

<telerik:RadTabStrip ID="tsFunctionMenu" runat="server" OnTabClick="tsFunctionMenu_TabClick"

SkinID="FunctionMenuSkin">

</telerik:RadTabStrip>

<hr />

<asp:Label ID="Label1" runat="server" Text="..."></asp:Label>

<hr />

</div>

</form>

</body>

</html>

CS

using System;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

using System.Configuration;

using System.Web.Security;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using Telerik.Web.UI;

public partial class Default : System.Web.UI.Page

{

protected void Page_Init(object sender, EventArgs e)

{

RadTab tab = new RadTab("TEST", "TEST");

tsFunctionMenu.Tabs.Add(tab);

}

protected void Page_Load(object sender, EventArgs e)

{

Add("<hr>");

Add("Page_Load");

Add(String.Format("Date: {0}", rdtpTimeStamp.SelectedDate));

if (!IsPostBack)

{

rdtpTimeStamp.SelectedDate = DateTime.Now;

}

protected void tsFunctionMenu_TabClick(object sender, RadTabStripEventArgs e)

{

RadTabStrip ts = (RadTabStrip)sender;

ts.SelectedIndex = -1;

string cmd = e.Tab.Value;

Add(String.Format("TabClick: {0}", cmd));

}

protected void Add(string text)

{

Label1.Text += "<br>" + text;

}

protected void Add(string text, object o)

{

Add(String.Format(text, o));

}

Calendar

answered on 22 Mar 2016

2 answers

199 views

Why Itemdatabound firing twice in radgrid using vb.net

Hi telerik,

Strucked in getting resoluation, itemdatabound in radgrid firing twice in vb.net.

Thanks,

Lokesh

Grid

answered on 22 Mar 2016

8 answers

498 views

Pivot grid Row Field Width

Hi,
In my Pivot table i want to set the width for each column of row Filed.

I set the column width like this.

<telerik:PivotGridRowField DataField="Maintype" Caption="" CellStyle-Width="60px" >

</telerik:PivotGridRowField>

<telerik:PivotGridRowField DataField="subtype" Caption="" CellStyle-Width="60px" >

</telerik:PivotGridRowField>

<telerik:PivotGridRowField DataField="Listtype" Caption="" CellStyle-Width="110px" >

</telerik:PivotGridRowField>

but i found some stange result as the width for each column is in irregular form.
means first column width set to second column and last column with is not changing
Please check the attached image for details.

I dont want to use the RowHeaderCellStyle widh ,because this will set the same width for all the row field column.

I want to set the Individual column width of rowfield.

PivotGrid

answered on 22 Mar 2016

1 answer

206 views

Change column order for columns created in design

Hi,

I'm interested in changing the order of the columns at runt-time for columns created in design-view. I have tried in Grid_PreRender but it doesn't work

Also, is it possible mix dynamically created columns with columns created in design?

Thanks,

catalin

Grid

answered on 22 Mar 2016

1 answer

155 views

how to restrict firing itemdatabound twice in vb.net

Hi Telerik team,

i strucked in getting result in rad grid footer. bcoz itemdatabound firing twice in vb.net, result is getting doubled.

Dim total As Integer
Protected Sub grdAddList_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles grdAddList.ItemDataBound
Try

If TypeOf e.Item Is GridDataItem Then
Dim dataItem As GridDataItem = CType(e.Item, GridDataItem)
Dim fieldValue As Integer = Integer.Parse(dataItem("Amount").Text)
total = (total + fieldValue)
End If

If TypeOf e.Item Is GridFooterItem Then
Dim footerItem As GridFooterItem = CType(e.Item, GridFooterItem)
footerItem("Amount").Text = "Total: " + total.ToString()
End If

Catch ex As Exception
Dim strExpMsg As String
strExpMsg = className & "." & MethodBase.GetCurrentMethod().Name & "()" & "->" & ex.Message.ToString()
ExceptionHandler(strExpMsg, ex, Me.strUserName)
End Try
End Sub

Thanks,

Lokesh

Grid

answered on 22 Mar 2016

4 answers

432 views

Fire button event in RadGrid

Hey!

I have a GridTemplateColumn where I define a TextBox and a Button in the EditItemTemplate property. How is it possible to fire the onClick event of the button.

I have tried the following:

<asp:ImageButton ID="Button" runat="server" ImageUrl="~/Resources/key.png" OnClick="Button_Click" />

... but this doesn't work I always get the following compilation error "...does not contain a definition for 'Button_Click' and no extension method ... (are you missing a using directive or an assembly reference?)".

I don't know what I made wrong - can anybody help me?

Grid

answered on 22 Mar 2016

5 answers

398 views

Radar chart position and label truncating

Hi there;

Two questions:

1. I'm currently rendering a radar chart inside a DIV, which has text-align set to center. The chart continually renders on the left side of the DIV, though. Is there a trick I'm missing?

2. Some of the x axis labels are truncated. Is there a way to prevent this?

Thanks,

Jason

<div class="ChartContainer">

<telerik:RadHtmlChart ID="radarRCM" runat="server" Width="400px" >

<Legend>

<Appearance Visible="false"></Appearance>

</Legend>

<PlotArea>

<Series>

<telerik:RadarLineSeries DataFieldY="Score" Name="RadarLineSeries1">

<LabelsAppearance Visible="false"></LabelsAppearance>

</telerik:RadarLineSeries>

</Series>

<XAxis DataLabelsField="Discipline" >

</XAxis>

</PlotArea>

<Zoom Enabled="False"></Zoom>

</telerik:RadHtmlChart>

</div>

Chart (HTML5)

answered on 22 Mar 2016

18 answers

629 views

Not enough storage is available to process this command

Hi guys,

I always have compilation error about Telerik.Web.UI.dll, once in a day.
It is "Metadata file '....\Telerik.Web.UI.dll' could not be opened -- Not enough storage is available to process this command

Do you have any idea about it?

FYI: I am using trial version Q1 2010 Ajax

AGT

General Discussions

answered on 21 Mar 2016

12 answers

616 views

Multiple download functionality

I need to build a file download manager that will let users select multiple files and download them all at once with no other prompts than the first to determine where on their local machine to save the files. Is it possible to do this with the FileExplorer control? If it is not possible, does anyone have any recommendations about a third-party control that would enable this functionality?

FileExplorer

answered on 21 Mar 2016