Questions on UI for ASP.NET AJAX Forum

1 answer

343 views

Hello.

In order to familiarize with the RadGrid component, I have created a small application whose grid is populated by a web service.

Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>

<%@ 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>

</head>

<body>

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

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

</telerik:RadScriptManager>

<telerik:RadGrid ID="RadGrid1" runat="server">

<MasterTableView>

<Columns>

<telerik:GridBoundColumn DataField="ID" HeaderText="ID" DataType="System.Int32" />

<telerik:GridBoundColumn DataField="Name" HeaderText="Name" DataType="System.String" />

</Columns>

</MasterTableView>

<ClientSettings>

<DataBinding Location="WebService.cs" SelectMethod="RetrieveRows" />

</ClientSettings>

</telerik:RadGrid>

</form>

</body>

</html>

WebService.cs:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.ServiceModel;

using Telerik.Web.UI;

namespace WebApplication1

{

[ServiceContract(Namespace = "")]

[System.Web.Script.Services.ScriptService]

public class WebService

{

public WebService ()

{

}

[OperationContract]

public Dictionary<string, object> RetrieveRows(int startRowIndex, int maximumRows, List<GridSortExpression> sortExpression, List<GridFilterExpression> filterExpression)

{

Dictionary<string, object> dictionary = new Dictionary<string, object>();

dictionary.Add("Data", new[] { new { ID = 1234, Name = "Test" }});

dictionary.Add("Count", 1);

return dictionary;

}

The compilation was successful, but the following error message was displayed at runtime by the built-in script debugger of Internet Explorer:
Line: 6563
Error: Sys.ArgumentException: Cannot deserialize empty string.
Parameter name: data

I would appreciate whether some assistance could be provided to solve this problem.

Last but not least:
a) I was wondering how the application could be implemented using a server-side binding solution.
b) What is Telerik's recommendation in regard to client versus server-side binding implementations using a web service?

Thank you in advance.
Paulo

Grid

answered on 12 Aug 2011

5 answers

136 views

Manual Insert/Update/Delete operations with sql statements from the code-behind

hi,
plz give me a sample for manually insert update delete in rad-grid with using session for row by row user entry.
save data on final submit button.
i am creating row dynamically on click of newrow button user make entry then again for new row untill last entry.
so plz give me any sample code related to such example where user first make all entry and store in session variable
and at last on submit button save all value in database here i am using 3 tables.
thanks

Grid

answered on 12 Aug 2011

2 answers

73 views

RadTreeView inside RadComboBox throws stack overflow at line:2086

Hi,

I have a RadTreeView inside a RadComboBox which in turn is inside a UpdatePanel.
Data is loaded in a heirarchical manner.

It works fine. But I get a "stack overflow at line:2086" error randomly from
the WebResource.xsd file.

I am not sure what is the cause of this error.
Does anyone has any inputs on this.

Thanks

TreeView

answered on 11 Aug 2011

1 answer

91 views

RadTextBox casues validation errors

I have been searching all over for an answer to this but to no avail... I am hoping someone here can help me.
I have a form that is intended to send field information to a support email address. I have disabled validation on all of the controls on this form to troubleshoot this.
When i fill the form out and click submit, it works fine, i get my Email as expected...

However, if i have special characters in any of the radtextbox fields, i get a validation error. Just the simple phrase <ValidateThis> will break the page.

Now i have created a routine to clean the text and replace the characters which ascii equivalents but the problem is that the validation error occurs before anything is run. How do i intercept this?

Thanks
Phil

Input

answered on 11 Aug 2011

2 answers

122 views

Issue With DataGroupColumn

i have allot of Charts in My Dashboard and all of them are working fine some with DataGroupColumn and some without

but i have problem with one of them, i have { DDate , MOVE , Count } as data

DataGroupColumn = "MOVE" and DataLabelsColumn = "DDate"
The problem is Chart puts data's with different DDate in Same Column. (chart.jpg is attched)

   e.Result = from MMove in dvMoveInOut._Ds.Tables[0].AsEnumerable()
   where (MMove.Field<DateTime>("DDATE") > NOW.AddDays(-15))
   orderby MMove.Field<string>("INOUT")
   select new
   {
   DDate = MMove.Field<DateTime>("DDATE").ToString("M/d"),
   MOVE = (MMove.Field<string>("INOUT") =="I") ? ("In") : ("Out") ,
   Count = ((MMove.Field<string>("INOUT") == "I") ? (MMove.Field<int>("CCOUNT")) : (-1 * MMove.Field<int>("CCOUNT"))) };
{ DDate = "8/5", MOVE = "In", Count = 1 }
{ DDate = "8/3", MOVE = "In", Count = 1 }
{ DDate = "8/1", MOVE = "In", Count = 1 }
{ DDate = "7/31", MOVE = "In", Count = 1 }
{ DDate = "7/31", MOVE = "Out", Count = -1 }
{ DDate = "7/30", MOVE = "In", Count = 2 }
{ DDate = "7/25", MOVE = "In", Count = 1 }
{ DDate = "7/25", MOVE = "Out", Count = -1 }
{ DDate = "7/24", MOVE = "In", Count = 1 }
{ DDate = "7/23", MOVE = "In", Count = 1 }
{ DDate = "7/23", MOVE = "Out", Count = -1 }
{ DDate = "7/22", MOVE = "In", Count = 1 }
{ DDate = "8/4", MOVE = "Out", Count = -1 }

Chart (Obsolete)

answered on 11 Aug 2011

1 answer

72 views

RadComboBox

Hello all,

Can I keep the RadCombo Open even after selecting an item.Any help is appreciated.

Thanks
Renj

ComboBox

answered on 11 Aug 2011

3 answers

138 views

AddNewRecordText - ampersand problem

Hi,

I have telerik radgrid being used in the application with the add option also included in the grid. I added AddNewRecordText as "Add User & Employee" for add button. Please note that there is an ampersand in the text that was given. Now the "Add" button that appears on the grid shows the text correctly. However the tooltip for the button doesn't show up right. It encodes the ampersand symbol and shows it in the tooltip. Is there any workaround to fix this problem?

<telerik:RadGrid ID="testEdit" AllowMultiRowEdit="True" ShowFooter="false" ShowStatusBar="true"

runat="server" ShowHeader="false" AutoGenerateColumns="true">

<MasterTableView CommandItemDisplay="Top" InsertItemPageIndexAction="ShowItemOnCurrentPage">

<CommandItemSettings ShowRefreshButton="false" AddNewRecordText="Add User & Employee" />

Regards,
Kishan G K

Grid

answered on 11 Aug 2011

1 answer

244 views

Grid Filter styles

I've noticed that for some reason when filtering is enabled, any datafields that are numeric have a span tag with 4 different input elements and the textbox is styled with the riInput class, and an inline width of 125px that I can't override (either through CSS or by setting the FilterItemStyle-Width attribute, but every other datatype is just a textbox and a button, styled as rgFilterBox.

Can someone explain 1) why exactly does it work this way? and 2) how can go about styling the controls that are using the radInput styles without messing with how every other radInput in my application is styled? Because that seems pretty ridiculous to me.

<!--numeric filter box -->

<

TD style="WHITE-SPACE: nowrap">

<SPAN style="WHITE-SPACE: nowrap" id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_wrapper class="RadInput RadInput_IP">

<INPUT style="WIDTH: 125px" id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_text class="riTextBox riEnabled" onkeypress="if((event.keyCode == 13 || event.keyCode == 20)){event.returnValue=false; return false;}" alt="Filter LineNum column" type=text name=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_text>

<INPUT style=

"BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: -18px 0px 0px -1px; PADDING-LEFT: 0px; WIDTH: 1px; PADDING-RIGHT: 0px; HEIGHT: 1px; VISIBILITY: hidden; OVERFLOW: hidden; BORDER-TOP: 0px; BORDER-RIGHT: 0px; PADDING-TOP: 0px"

id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum class=rdfd_ title="" type=text>

<INPUT style=

"BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; PADDING-BOTTOM: 0px; MARGIN: -18px 0px 0px -1px; PADDING-LEFT: 0px; WIDTH: 1px; PADDING-RIGHT: 0px; HEIGHT: 1px; VISIBILITY: hidden; OVERFLOW: hidden; BORDER-TOP: 0px; BORDER-RIGHT: 0px; PADDING-TOP: 0px"

id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_Value class=rdfd_ title="" type=text name=tabs$tabExportDetail$rgExportDetail$ctl00$ctl02$ctl03$RNTBF_LineNum>

<INPUT id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_ClientState type=hidden name=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_RNTBF_LineNum_ClientState autocomplete="off">

</LINK>

</SPAN>

<INPUT id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_Filter_LineNum class=rgFilter title=Filter onclick=

'$find("tabs_tabExportDetail_rgExportDetail")._showFilterMenu("tabs_tabExportDetail_rgExportDetail_ctl00", "LineNum", event); return false;'

type=submit name=tabs$tabExportDetail$rgExportDetail$ctl00$ctl02$ctl03$Filter_LineNum>

</TD>

<TD style="WHITE-SPACE: nowrap">

<INPUT id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_FilterTextBox_ProductNum class=rgFilterBox onkeypress="if((event.keyCode == 13 || event.keyCode == 20)) return false;" alt="Filter ProductNum column" size=10 type=text name=tabs$tabExportDetail$rgExportDetail$ctl00$ctl02$ctl03$FilterTextBox_ProductNum>

<INPUT id=tabs_tabExportDetail_rgExportDetail_ctl00_ctl02_ctl03_Filter_ProductNum class=rgFilter title=Filter onclick=

'$find("tabs_tabExportDetail_rgExportDetail")._showFilterMenu("tabs_tabExportDetail_rgExportDetail_ctl00", "ProductNum", event); return false;'

value=" " type=submit name=tabs$tabExportDetail$rgExportDetail$ctl00$ctl02$ctl03$Filter_ProductNum>

</TD>

Grid

answered on 11 Aug 2011

1 answer

121 views

telerik web UI source code Basic Client class

I'm trying to build the telerik source code locally so I can debug some things and I can't build the web UI code.
I'm getting and error that tells me The type or namespace name 'BasicClient' could not be found (are you missing a using directive or an assembly reference?)

Where is Basic Client class?

General Discussions

answered on 11 Aug 2011

1 answer

80 views

Get button click from dynamically added usercontrol

Howdy,

I started working with this demo ( http://demos.telerik.com/aspnet-ajax/panelbar/examples/applicationscenarios/accessingnestedcontrols/defaultcs.aspx ) to help me with a method to create a new user account. What I have (in C#) is:

master page
content page
radajaxpanel
radpanelbar

So when the content page is loaded:

1. I create root and child panelItems and load them into the radpanelbar
2. load a previously created user control .ascx into the first panelItem.
3. The user control will do some stuff (accept user input) and a button within the user control will be enabled to go to the next portion of the process.

I want that button, (on the user control), to tell the radpanelbar control (on the content page) that it's OK to expand the next panelitem. How can I make that happen?

PanelBar

answered on 11 Aug 2011