Questions on UI for ASP.NET AJAX Forum

3 answers

108 views

Radgrid in a UserControl with a check box on each row...

The grid is set to multi-page. When I scroll down and click select a checkbox, the grid jumps jumps off the page where the bottom of the grid is showing at the top of the screen. I cannot seem to fix this issue. Anyone have any idea what's going on here?

Grid

answered on 02 Apr 2012

1 answer

173 views

ComboBox with RadButton in HeaderTemplate

Hello,

I want to use a simple HeaderTemplate for my ComboBox:

internal class MyHeaderTemplate : ITemplate

{

private readonly RadButton _okButton;

public MyHeaderTemplate()

{

_okButton = new RadButton();

_okButton.ID = "OkButton";

_okButton.Text = "OK";

}

internal RadButton ButtonOk

{

get { return _okButton; }

}

public void InstantiateIn(Control container)

{

container.Controls.Add(_okButton);

}

But I get this error when the pare is generated: Script controls may not be registered after PreRender. When I don't set the HeaderTemplate to the ComboBox, everything works as expected.

ComboBox

answered on 02 Apr 2012

1 answer

179 views

Show icon in datepicker

How can I make a datepicker show warning symbol like RadNumericTextBox ?

Calendar

answered on 02 Apr 2012

2 answers

99 views

RadChart as Pie drawing two Pies whenever the Series Items count is higher than 15

Hi everybody,

i have a little problem which may be caused by misunderstanding some logic in RadChart.

My RadChart is drawed as Pie and bound two a DataTable. The result is one Series with dynamic count of items.
Whenever the Items count is getting higher than 15 the ChartControl is drawing two pies.
Searching the Forum and Support i found that the DataGroupColumn is responsíble vor mulitple Pies but i haven't set it to any value.

My Qestion is:
Is this behavior by Design or what else can be the reason that a Series with more than 15 items is drawed into two pies?

Thank you guys

P.s. I use the newest version of Telerik RadControls

Chart (Obsolete)

answered on 02 Apr 2012

3 answers

220 views

Client-side binding, how to get raw AJAX response object?

I'm using client-side binding to a WebMethod, and I need to intercept the AJAX response object. I can get the row objects that are children of the response in the OnRowDataBound through args.get_dataItem(); how to do I get the return object from the WebMethod (either before or after the grid is bound at client-side)?

Grid

answered on 02 Apr 2012

1 answer

730 views

Adding CheckBox columns programmatically with Events

Hello,

I am having trouble adding "OnChecked" events to my GridTemplateColumns I am creating programmatically.

Here is the code I am using to create my columns (and the new column "RoleColumn"):

public void DefineGridStructure()

{

var templateColumn = new GridTemplateColumn();

templateColumn.UniqueName = "myColumn" + i;

templateColumn.ItemTemplate = new RoleColumn("myColumn" + i);

// add the dynamically created columns to the grid

dgLoginRequest.MasterTableView.Columns.AddAt(COLUMN_START_POS - 1, templateColumn);

}

    public class RoleColumn : ITemplate

    {

protected CheckBox roleCheckbox;

private string _columnName;

public RoleColumn(string columnName)

{

_columnName = columnName;

}

public void InstantiateIn(Control container)

{

roleCheckbox = new CheckBox { ID = "cbx" + _columnName };

roleCheckbox.AutoPostBack = true;

roleCheckbox.DataBinding += new EventHandler(roleCheckbox_DataBinding);

container.Controls.Add(roleCheckbox);

}

private void roleCheckbox_DataBinding(object sender, EventArgs e)

{

var cBox = (CheckBox)sender;

var container = (GridDataItem)cBox.NamingContainer;

cBox.Checked = ((EntityUserRole)container.DataItem).Roles[0][_columnName];

}

Now when I call the DefineGridStructure routine I then bind a data source to my grid (the datasource is an ArrayList type which holds "Role" objects):

public void BindDataGrid()

{

try

{

DefineGridStructure();

dgLoginRequest.DataSource = DataSource;

dgLoginRequest.DataBind();

}

catch (Exception ex)

{

throw;

}

}



    public
 
 
 interface IRole
 
    {
 
 
        Int16 RoleID { get; set; }
 
 
 
        string RoleName { get; set; }
 
 
 
        Int16 OrderID { get; set; }
 
    }

I then capture the OnItemDataBoundEvent and add my event handler at this point;

protected void dgLoginRequest_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridDataItem)

foreach (Role role in Roles)

{

var checkbox = (e.Item as GridDataItem)["myColumn" + i].Controls[0] as CheckBox;

checkbox.CheckedChanged += new EventHandler(cbxReader_CheckedChanged); 

                            i++;

}

However, when I click my checkboxes they do not fire the event (cbx_CheckedChanged).

What am I missing?

All I want to do is create a checkbox column for each role that I have in my Arraylist (currently 4). And I want to be able to handle the "OnCheckedChanged" event in code whenever any of these checkboxes are checked.

Please help. I have went through the documenation already - that's how i got this far. A sample application would be appreciated.

Thanks,

Grid

answered on 02 Apr 2012

4 answers

261 views

Unhandled Exception when filtering columns

Trying to use the Radgrid to do server-side data filtering.

I'm binding a dataset to a RadGrid, and setting the AutoPostBackOnFilter='true' for each column. Clicking on the filter button throws this unhandled exception.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

An unhandled exception was generated during the execution of the
            current web request. Information regarding the origin and location of the
            exception can be identified using the exception stack trace below.

Stack Trace:


            [NullReferenceException: Object reference not set to an instance of an object.]
   Telerik.Web.UI.RadGrid.RaisePostBackEvent(String eventArgument) +11025
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +176
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5563

Grid

answered on 02 Apr 2012

4 answers

101 views

DataBound menuitems with OnClientItemClicked for RadWindow pops radwindow into Target Pane and does not popup

If I use DataBinding to create my menuitems, and use the OnClientItemClicked event to call a javascript which calls a radwindow (popup), the called radwindow does not popup, rather it loads into the target pane.
(well it pops up briefly, then exits and reloads in the Target Pane)

However, when I Create the MenuItems in HTML, the call to the OnClientItemClicked javascript , does popup the radwindow correctly.

My workaround for this was "AppendDataBoundItems" and retain a menu item from HTML, such that my popup radwindow pops up correctly...Happiness,..BUT

It is AppendDataBoundItems,...and I really want PrePend,..i.e. I would like my MenuItem with Popup to appear at the end of the Menu, not the beginning.

Any help,..ideas ? (for either).

Code is:

RadMenu AdminAuthMenu = this.NavPane.FindControl("RadMenu1") as RadMenu;

AdminAuthMenu.DataSource = SiteMap.GetdbMenuItems();   //Just class with db sql to get MenuItems 

AdminAuthMenu.DataBind();



protected void RadMenu1_OnItemDataBound(object sender, RadMenuEventArgs e) 

{
    RadMenuItem ei = e.Item as RadMenuItem;
    ei.Target = "ContentPane";

}

Markup is:

telerik:RadMenu ID="RadMenu1" runat="server" Width="100%" Height="31px" Skin="Black"

OnClientItemClicked="MenuItemItemClicked"

DataFieldID="ScreenId"

DataNavigateUrlField="Screen"

DataTextField="Title"

DataValueField="ScreenId"

OnItemDataBound="RadMenu1_OnItemDataBound"

AppendDataBoundItems="True">

<Items >
<telerik:RadMenuItem runat="server" Text="Login" value="Login"

BackColor="Transparent" ForeColor="#FFFFC0"></telerik:RadMenuItem>

</Items>

Menu

answered on 02 Apr 2012

4 answers

174 views

Getting Javascript error on Date picker after version update of telerik

Hi,
I have update newer version of telerik to 2012.1.215.40. After update the new version i am getting error on my almost all page
before updating the version it was working fine but i don't know what happened after update the newer version. Please help

Following javascript error getting on button click(javascirpt error on Mozilla firefox)

Error: Sys.WebForms.PageRequestManagerServerErrorException: Text property cannot be set. String was not recognized as a valid DateTime.
Source File: http://localhost:1932/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_RSMAccountsTrak_TSM&compress=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d4.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3a89093640-ae6b-44c3-b8ea-010c934f8924%3aea597d4b%3ab25378d2%3bTelerik.Web.UI%2c+Version%3d2012.1.215.40%2c+Culture%3dneutral%2c+PublicKeyToken%3d121fae78165ba3d4%3aen-US%3ab29b07e8-2c1e-44e5-9e1b-59bb6459fb01%3a16e4e7cd%3a874f8ea2%3af7645509%3a24ee1bba%3a19620875%3af46195d3%3a490a9d4e%3abd8f85e4%3a2003d0b8%3a1e771326%3aaa288e2d%3aed16cbdc%3ae330518b%3a8e6f0d33%3a7c926187%3a8674cba1%3ab7778d6c%3ac08e9f8a%3a59462f1%3aa51ee93e%3ae085fe68
Line: 15Webpage error details

Please help it break my all applications.

Thanks
Manish

Calendar

answered on 02 Apr 2012

6 answers

314 views

[Solved] Onblur in maskedTextBox

I have a maskedTextbox with 2 events, onblur client side and OnTextChanged in server side.
My on blur method are returning true or false, if my return is true, i wanna enter in server side and do OnTextChanged, if return is false doesnt enter on server side and show a alert.
My problem is, my return can be true or false, doesnt make anything different, always enter in server side.

function verificarCPF() {

var contador;

var valorCPF = $telerik.findMaskedTextBox("txtBuscaCpf").get_value();

var numeroCPF = valorCPF.substr(0, 9);

var digitoCPF = valorCPF.substr(9, 2);

var d1 = 0;

for (contador = 0; contador < 9; contador++) {

d1 += numeroCPF.charAt(contador) * (10 - contador);

}

if (d1 == 0) {

radalert("CPF Inválido!",350,140,"Mensagem",null,null);

return false;