Questions on UI for ASP.NET AJAX Forum

1 answer

186 views

Hello,
I am currently working with the RadListView components.

I am trying to make a textbox visible or not from the result of a preceding textbox.

if tb1.text = “CE”

then tb2.visible = false

Currently I am having null pointer exception returns. The problem is that by the standard methods of binding the result to a String returns an object and not a string (even with the .ToString() argument). How can i resolve this problem?

Thank you for your understanding

ListView

answered on 18 Aug 2011

2 answers

163 views

Export multiple grids to pdf

Hello,
I have multiple ragrids in a table and I would like to export them in one PDF.
i saw this exemple : http://www.telerik.com/community/code-library/aspnet-ajax/grid/export-multiple-radgrids-in-single-pdf-excel-file.aspx
but I'm not sure it will work for me: My grids don't have the same column names, and iwhen i tried inserting the gridWrapper, i did'nt have access to any of my grids server-side.

Do you have an idea of how could i do it?
Thank you
Shirya

this is how i populate one of my radgrids(it is practically the same for all): That is why i need to have access to them

'Retreive the list of functions in my DB then :

If FunctionList.Count <> 0 Then

Me.RadGridFunctions.DataSource = FunctionList

Else

Me.RadGridFonctions List(Of Fonction)

End If

Me.RadGridFunctions.DataBind()

Grid

answered on 18 Aug 2011

1 answer

294 views

RadButton can open a RadWindow but auto close

Hi all,
I have used aspButton to open RadWindow , it's work success
but i used radButton to open RadWindow, it's can open but immediately auto close
Please give me solution on this problem.why rad window auto close with rad button.
TKS~

<head>

<title></title>

<script type="text/javascript">

function openWin() {

window.radopen("Default5.aspx", "UserListDialog");

return false;

}

</script>

</head>

<body>

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

<telerik:RadScriptManager ID="sc1" runat="server">

</telerik:RadScriptManager>

<telerik:RadWindowManager ID="RadWindowManager1" runat="server" >

<Windows>

<telerik:RadWindow ID="UserListDialog" runat="server" Height="320px"

Width="550px" Left="150px"

/>

</Windows>

</telerik:RadWindowManager>

<asp:Button ID="aspButton" runat="server" Text="aspButton" />

<telerik:RadButton ID="radButton" runat="server" Text="radButton" />

</form>

</body>

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

If Not IsPostBack Then

Me.aspButton.Attributes.Add("onclick", "return openWin();return false;")

Me.radButton.Attributes.Add("onclick", "return openWin();return false;")

End If

End Sub

Window

answered on 18 Aug 2011

1 answer

112 views

Export radGrid to CSV with headers and maintain field types?

Right now I'm using the default export to CSV which maintains my field types when I open the file in excel, ie, currency stays as currency and percent as percent. What I want to do is export the grid with the headings it has also and still maintain type.

Is this possible with export to CSV?

Grid

answered on 18 Aug 2011

2 answers

73 views

Issue with RadGrid population

Hi Friends,

I am very new to Telerik control.

I have a task to populate two radgrids. the scenario is

1) On load the first grid say (RoomGrid) populates Room names of a school ie from 1 to 10 with Id, Roomname and Description

1-Room1-Descritpion1
2-Room2-Description2
.
.
.10-Room10-Description

So when I click on a particular row the second grid say studGrid should be populated with StudId, StudName in that room.

I dont want postback to happen when I click on the row as i will be opening a radwindow on doubleclicking RoomGrid.

So If I use selectedIndexChanged event the page will reload(postback) and doubleclick fails.

Can anyone help me how to do this? or any sample code? Very urgent Please

Thanks in Advance
Balaji

General Discussions

answered on 18 Aug 2011

1 answer

204 views

RadGrid and NeedDataSource

hi

I have a grid with paging enabled and viewstate is set to True and i have set a breakpoint at the NeedDdataSource. What happened is that whenever i click the page number on the grid it goes into breakpoint and it would ran through the code again.

There is some performance issues here if i have many rows of records.

Since i know the dataset has been filled with data, how do i code it so that there is no need to go through that code everytime i do a paging on the grid? thanks and sorry for the inconvenience caused.

Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As GridNeedDataSourceEventArgs) Handles RadGrid1.NeedDataSource

Dim ds1 As New DataSet
ds1 = dsDemo("demo","demo")
RadGrid1.DataSource = ds1.Tables(0).DefaultView

End Sub

Grid

answered on 18 Aug 2011

0 answers

108 views

Upload apearance problem

First of all, please see the attached file, file name is "upload problem final".
I created controls.
I worked well, but there are something wrong as the attached file.
Please tell me why most of upload controls are disappeard?
The massage of error is as below...

Also, if you know how to bind multi files on upload controls from data base.
Please let me know how to do it... Please help me...

thanks all,,,, Have a great day...

Error :

Webpage error details

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2; MS-RTC EA 2)
Timestamp: Thu, 18 Aug 2011 04:00:16 UTC

Message: Sys.InvalidOperationException: A control is already associated with the element.
Line: 6580
Char: 49
Code: 0
URI: http://server1:9001/ScriptResource.axd?d=kWGs-RUk2zQKppldQIv5LEL-ZbidAjrVVoqsnTFQktf3_jYqeTWWcpOKfkyQ2k1ZwQY0SbG6gXq1eT68DL9beP5qF61LX4SPvyQFZ0ykAIj1wlyuze_fEG9W1DziucrZWPHju4oLYbjd_H_O7J_8O5F4pU_h4qybXdbqYJ5qrlgYfo5f0&t=ffffffffdca79b6e

Upload (Obsolete)

asked on 18 Aug 2011

1 answer

73 views

Two Q: Is there a Filter Event?

Hi

Question1: I was under impression that Grid control by default used Ajax features, and any action on grid will produce ajax like behaviour as seen in demos. but I observe that it does postbacks. what i am missing.

Question2: I am using following code in Page_Load Event to bind datasouce to grid,

if (!Page.IsPostBack)

{

MembershipUserCollection uc = Membership.GetAllUsers();

RadGrid1.DataSource = uc;

RadGrid1.DataBind();

}

Then while running code, when I select filter the grid goes blank. I understnad that on postback DataSource is lost, so
1. Is there a filter event where i can assing DataSource back to grid.
2. I would prefer, if there is a way to do filter at client-side itself.

Regards

Grid

answered on 18 Aug 2011

1 answer

465 views

RadTab Multipage issue when set to invisible/visible

Hi, I have a RadTab, and a Multipage that are generated Dinamically. When I call the function, GeneraInfoGeneral for the firs time works fine, but when another control sets the RadTab to visible=false; and the RadMultipage to visible=false, it only persists the pageView (visible), if I dont change between tabs.

When I first click on btnInfoGral it works fine, but after I click btnServidorPublico and I clear tabs and clear pageViews, the pageview does not load until I click another tab. Im trying to set RadTab visible and invisible as its Multipage and pagesviews too.

<telerik:RadTabStrip ID="RadTabInfoGral" runat="server"

MultiPageID="RadMultiPage1" OnTabClick="RadTabInfoGral_TabClick"

Orientation="HorizontalBottom" Skin="Default"

Visible="False" OnClientTabSelecting="onTabSelecting" SelectedIndex="0" OnClientTabUnSelected="OnClientTabUnSelected"

Align="Right">

</telerik:RadTabStrip>

<%--<telerik:RadTabStrip ID="RadTabStrip1" runat="server" SelectedIndex="0"

Width="100%" OnTabClick="RadTabStrip1_TabClick" >

<tabs>

<telerik:RadTab runat="server" Selected="True" Text="Root RadTab1">

</telerik:RadTab>

<telerik:RadTab runat="server" Text="Root RadTab2">

</telerik:RadTab>

</tabs>

</telerik:RadTabStrip>--%>

<telerik:RadMultiPage

ID="RadMultiPage1" runat="server" SelectedIndex="0" OnPageViewCreated="RadMultiPage1_PageViewCreated"

Width="100%" ScrollBars="Vertical" Height="430px" Visible="False" >

</telerik:RadMultiPage>

private void AddTab(string tabName)

{

RadTab tab = new RadTab();

tab.Text = tabName;

tab.SelectedImageUrl = "~/App_Themes/img/Informacion.gif";

RadTabInfoGral.Tabs.Add(tab);

}

private void AddPageView(RadTab tab)

{

//BARRO cada lista de controles, y cuando coincide el nombre de la pestaña con el de la lista

//me salgo del foreach, y le asigno al pageView.ID, el nombre que en la base de datos coincide con fcFileControlId,

//se cargó previamente en la inicialización de controles.

foreach (string[] list in (List<string[]>)ViewState["listControlesID"])

{

if (list[0].Equals(tab.Text))

{

RadPageView pageView = new RadPageView();

pageView.ID = list[1];

RadMultiPage1.PageViews.Add(pageView);

tab.PageViewID = pageView.ID;

break;

}

protected void RadTabInfoGral_TabClick(object sender, RadTabStripEventArgs e)

{

AddPageView(e.Tab);

e.Tab.PageView.Selected = true;

}

protected void GeneraInfoGeneral()

{

//SI LE DAN CLICK EN EL BOTON DE INFORGRAL POR SEGUNDA VEZ MIENSTRAS ESTÉ MOSTRANDO

if (!RadTabInfoGral.Visible)

{

RadTabInfoGral.Visible = true;

//RadTabInfoGral.SelectedIndex = -1;

PanelServidor.Visible = false;

foreach (string[] StringArray in (List<string[]>)ViewState["listNombresPestañas"])

{

AddTab(StringArray[2]);

}

RadMultiPage1.Visible = true;

AddPageView(RadTabInfoGral.Tabs[0]);

}

protected void anyImageButton_Click(object sender, ImageClickEventArgs e)

{

switch (((ImageButton)sender).ID)

{

case "btnServidorPublico":

PanelServidor.Visible = true;

RadTabInfoGral.Visible = false;

RadMultiPage1.Visible = false;

RadTabInfoGral.Tabs.Clear();

RadMultiPage1.PageViews.Clear();

break;

case "btnInfoGral":

GeneraInfoGeneral();

break;

default:

break;

}

protected void RadMultiPage1_PageViewCreated(object sender, Telerik.Web.UI.RadMultiPageEventArgs e)

{

string userControlName = "~/Controles/InformacionGeneral/" + e.PageView.ID + "CS.ascx";

string URL = string.Empty;

string jScript = " function Muestra_div(x) {" +

" if (document.getElementById(x).style.display == 'none')" +

" { document.getElementById(x).style.display = 'block'; window.location.hash='#Link'+x;}" +

" else " +

" document.getElementById(x).style.display = 'none';}" +

"function Oculta_Divs(ar){" +

"for (i=0;i<ar.length;i++){" +

" document.getElementById(ar[i]).style.display = 'none';}" +

"}";

//string sUrlImagenFondo = string.Empty;

Control userControl = Page.LoadControl(userControlName);

userControl.ID = e.PageView.ID + "_userControl";

cDevuelveDatos devuelveDatos = new cDevuelveDatos();

devuelveDatos.UrlHTML((List<string[]>)ViewState["listArraytotal"], (List<string[]>)ViewState["listSubRubros"], e.PageView.ID);

Literal literal1 = new Literal();

literal1.ID = "Literal1";

literal1.Text = devuelveDatos.sCadenaInformacion(Request.Url.Scheme + "://" + Request.Url.Host + Request.ApplicationPath,

Server.HtmlEncode(Request.PhysicalApplicationPath),e.PageView.ID);

ScriptManager.RegisterStartupScript(userControl.Page, userControl.Page.GetType(),"Key", jScript, true);

//literal1.Text += "<a href=\"#\" onclick=\"Muestra_div('"+e.PageView.ID+"DivPrincipal')\">dd</a>";

userControl.Controls.Add(literal1);

//((Literal)userControl.FindControl("literal01")).Text = literal1.Text;

e.PageView.Controls.Add(userControl);

}

TabStrip

answered on 18 Aug 2011

3 answers

78 views

Auto expand not working in 1680 x 1050

Whenever we change the display resolution and refresh the screen the grid seemlessly fits the entire screen. But if the resolution is changed to 1680 x 1050 it is not happening!

Any workaround possible?!

Thank you

Regards
Raj

Grid

answered on 17 Aug 2011