Questions on UI for ASP.NET AJAX Forum

3 answers

86 views

I have 2 RadDateTimePicker controls on the page and after user changes time on the first control I want to set another control to display time shown in 1st control (and plus 30 minutes). I've tried using <ClientEvents OnDateSelected="changeEndDate" /> and this javascript but it does not seem to work. Both controls are located inside of an AdvancedInsertTemplate of RadScheduler.

function changeEndDate(sender, eventArgs) {

var endDate = $telerik.$("[id$='EndInput']");

var newDate = eventArgs.get_newValue();

endDate.set_selectedDate(newDate);

}

What am I doing wrong? Thanks

Calendar

answered on 20 Oct 2011

3 answers

93 views

SlideShow with Load on Demand

Howdy,

I seem to be stuck on something that is prolly simple. I am using the RadRotator and want to show a series of images in a specific order. For example: an image that says Step 1, followed by an image that says Step 2, followed by an image that says Step 3. If I am on Step 1's image and I hit the previous button, Step 3's image should appear. I currently override the control buttons and use my own Left and Right button. If I use XML and load all the images from XML everything works fine.

However, I now need to be able to add dozens of steps and I don't want the user to wait for all the images to download. So I want to switch to the Load on Demand pattern. I have a web service method that creates the RadRotatorItemData on the fly and is working but not in the way I want. I am using the itemIndex parameter to determine what the next image that needs to be built is. However, since I don't know which direction the user is going (Left or Right) I build the wrong image if the user goes Left.

What I don't see in the documentation is how to specify how many items get created on demand and what the scope of those new items should be (ie. Steps 1 - 5 or Steps 15 - 20), The demo is loading 5 items at a time, but I don't see how that is configured. Also, if I have loaded the first 5, and I need the 2nd 5 items, how do I tell the web service method what batch of 5 I need, since I can only pass in the itemIndex parameter. And if my current index is 0, and the user clicks on the Left button, I need to load the last five steps (which may be Steps 18 - 23).

In summation, I want this slideshow demo merged with the Load on Demand functionality.

Hope this makes sense...

Thanks,
Seth

Rotator

answered on 20 Oct 2011

1 answer

64 views

Client-side Binding Example Using WCF / jQuery...

In the online demos, there is a nice demonstration of how to use client-side binding with page methods. However, I would like to take this a step further and use a WCF service to provide the data and call the service methods via jQuery. Is there an article or a post that shows me how to accomplish this or how to move from the aforementioned sample code to code that I am trying to put together?

Grid

answered on 20 Oct 2011

1 answer

174 views

RadAjaxPanel causes full post back

Hi,

I'm very new to Telerik controls. Today I tried to get RadAjaxPanel to postback part of the page but cound't get it to do so. Can anyone please indicate what I am doing wrong. For the sake of simplicity I've added some text to the top of the page so as to make the page refresh more visible.

Below is the code using controls that come with .NET

<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="utf-8" %>

<!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 id="Head1" runat="server">

<script runat="server">

protected void ReadOnly_SelectedIndexChanged(object sender, EventArgs e)

{

if (ReadOnly.SelectedItem.Value == "Yes")

Details.ReadOnly = false;

else

{

Details.Text = "";

Details.ReadOnly = true;

}

</script>

<title></title>

</head>

<body>

<form id="Form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

<ContentTemplate>

Read Only:

<asp:DropDownList ID="ReadOnly" runat="server" OnSelectedIndexChanged="ReadOnly_SelectedIndexChanged"

AutoPostBack="True">

<asp:ListItem Selected="True">No</asp:ListItem>

<asp:ListItem>Yes</asp:ListItem>

</asp:DropDownList>

<br />

Details:

<asp:TextBox ID="Details" runat="server" Columns="60" Rows="5" TextMode="MultiLine"

ReadOnly="True"></asp:TextBox>

</ContentTemplate>

</asp:UpdatePanel>

</form>

</body>

</html>

What follows is the Telerik equivalent that isn't working.

<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="utf-8" %>

<%@ 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 id="Head1" runat="server">

<script runat="server">

protected void Page_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

RadAjaxPanel2.EnableAJAX = false;

}

protected void ReadOnly_SelectedIndexChanged(object sender, EventArgs e)

{

if (ReadOnly.SelectedItem.Value == "Yes")

Details.ReadOnly = false;

else

{

Details.Text = "";

Details.ReadOnly = true;

}

</script>

<title></title>

</head>

<body>

 

<form id="Form1" runat="server">

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

<telerik:RadAjaxPanel ID="RadAjaxPanel2" runat="server" LoadingPanelID="RadAjaxLoadingPanel1">

Read Only:

<asp:DropDownList ID="ReadOnly" runat="server" OnSelectedIndexChanged="ReadOnly_SelectedIndexChanged"

AutoPostBack="True">

<asp:ListItem Selected="True">No</asp:ListItem>

<asp:ListItem>Yes</asp:ListItem>

</asp:DropDownList>

<br />

Details:

<asp:TextBox ID="Details" runat="server" Columns="60" Rows="5" TextMode="MultiLine"

ReadOnly="True"></asp:TextBox>

</telerik:RadAjaxPanel>

</form>

</body>

</html>

UI for ASP.NET AJAX in ASP.NET MVC

answered on 20 Oct 2011

1 answer

79 views

RTL with captcha image support

i wanted to make the captcha in hebrew so at least spammers that dont read hebrew cannot write in.
so i've added

RadCaptcha1.CaptchaImage.CharSet = "1234567890אבגדהוזחטיכלמנסעפצקרשת";

RadCaptcha1.CaptchaImage.TextChars = Telerik.Web.UI.CaptchaPossibleChars.CustomCharSet;

and i've got nice hebrew captcha
but when i tried to enter what i've seem in the image it told me that i written the wrong code.
it showed "אבגדה"
so i've entered "א" "ב" "ג" ד" ה"
and then i figured that i needed to enter the letters from the left to right
"ה" ד" "ג" "ב" "א"
and it passed just fine.
can you add an option to parse the text in reverse that way you get full RTL support.

i can do reverse in javascript on post back but i rather not using a patch and have a good product.

Captcha

answered on 20 Oct 2011

1 answer

79 views

RadEditor - 'Associate cells with headers' with more than one header row

Let's say i want a table with two header rows like in the attached image. It looks to me like the header association will not take into account the second header row. Is this the case? If so, is there a workaround other than manual insertion of ids into the cells for the second header row.

Thank you,
Matt

Editor

answered on 20 Oct 2011

3 answers

149 views

HeaderContextMenu

protected void Page_Load(object sender, EventArgs e)

{

aRadGrid.HeaderContextMenu.ItemCreated += new RadMenuEventHandler(HeaderContextMenu_ItemCreated);

}

protected void Page_Init()

{

...

aRadGrid.MasterTableView.EnableHeaderContextMenu = true;

...

}

protected void HeaderContextMenu_ItemCreated(object sender, Telerik.Web.UI.RadMenuEventArgs e)

{

RadMenuItem anItem = e.Item;

switch (anItem.Value)

{

case "SortAsc":

case "SortDesc":

case "SortNone":

case "GroupBy":

case "UnGroupBy":

case "FilterMenuParent":

case "FilterMenuContainer":

anItem.Visible = false;

break;

case "ColumnsContainer":

anItem.Text = "Afficher/Cacher la colonne";

break;

default:

if (anItem.Level == 2 && ((RadMenuItem)anItem.Parent).Value == "ColumnsContainer")

{

//string ww = anItem.Attributes["ColumnName"];

if (anItem.Value.EndsWith(XarcT.UN_S)

|| anItem.Value.EndsWith(XarcT.UN_IUA)

|| anItem.Value.EndsWith(XarcT.UN_M)

|| anItem.Value.EndsWith(XarcT.UN_L)

|| anItem.Value.EndsWith(XarcT.UN_Limg))

{

anItem.Visible = false;

};

break;

}

Hello,
I am using the show/hide columns option of HeaderContextMenu (RadGrid).
It works very well.
But at each time the rebind() is executed, the radgrid doesn't remember the columns which are hided or shown.
Is there a way after each postback, to remember the hided/shown columns.

I've tried to handle the event:

aRadGrid.HeaderContextMenu.ItemCreated +=

new RadMenuEventHandler(HeaderContextMenu_ItemCreated);
but it doesn't fire.

I manage the radgrid programmatically...
aRadGrid.MasterTableView.EnableHeaderContextMenu =

true;

Regards

Grid

answered on 20 Oct 2011

1 answer

91 views

why RadRibbonBar causes page refresh at first load?

Hi there ; I have a page (C#.Net 2010 web application) which contains a RadRibbonBar and some other Telerik Rad Controls. I encountered that the page get refresh at first load (for second time) and also on each post back loads two times per each postback, so all my session variables refresh and miss their previous values. Then I removed the RadRibbonBar, and the second postBack (loop) removed successfully. Now I'm looking for a way to have a RibbonBar, but prevent it from refresh the page for the second trip. Any suggestions would be appreciated.

RibbonBar

answered on 20 Oct 2011

3 answers

113 views

Export Radgrid with detailstables

Hi,

Is it possible to export een radgrid with detailtabels to a pdf.
The detailtables are shown (decollapsed) so the pdf that wil be generated is shown with the detailtabels.

greetings

Grid

answered on 20 Oct 2011

6 answers

361 views

combo search extremely slow with 1000 entries.

Dear friends,

I tried to use 2 column radcombobox with "product name" and "product code". data filed is ID column. For 50 or 100 records its fine. but 1000 entries and 2 column are killing people on local computer and also on server. I tried to implement "google like" search, as you type web service would list available products, I succeeded but its also slow and some client computers says:

Windows Internet Explorer
---------------------------
Stop running this script?

A script on this page is causing Internet Explorer to run slowly.
If it continues to run, your computer might become
unresponsive.

I dont know why this message appears but, at the moment I dont care. All I need to solve is 2 column searchable fast combobox. I also tried to use regular radcombo with 1 column only (productname) its also slow, even while dropping down.

Can someone confirms this situation is normal ? What kind of searchable THING should I use. Is the radcombobox wrong component for this ?

best regards.

heres the code:

 <telerik:RadComboBox ID="cboProducts" runat="server"
 DataSourceID="SqlDataSourceProducts" DataTextField="productname"
 DataValueField="guidid" Filter="StartsWith">
 </telerik:RadComboBox>
 <asp:SqlDataSource ID="SqlDataSourceProducts" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringNET %>"
 ProviderName="<%$ ConnectionStrings:ConnectionStringNET.ProviderName %>" DataSourceMode="Dataset"
 EnableCaching="true"
 SelectCommand="SELECT guidid, [productname], productcode FROM productsORDER BY [productname]">
 <SelectParameters>
 </SelectParameters>
 </asp:SqlDataSource>

ComboBox

answered on 20 Oct 2011