Questions on UI for ASP.NET AJAX Forum

1 answer

182 views

I have a RadMultiPage with several pageviews, each of which is tied to a specific tab in a RadTabStrip. When the page loads I programmatically determine which tabs are accessible, and hide the rest. I then iterate over the pageviews in the associated RadMultiPage to mark them visible if the tab is also visible. Once that's done I check if there are any visible tabs, and if there are I set the selectedindex of both the tabstrip and the multipage to 0.

The tabs are showing/hiding correctly, but the multipage pageviews are not. If the first tab/pageview is not visible the tab is gone, but the pageview still shows. If I set all of the pageviews to visible=false but leave the tabs visible I can click through all the tabs and their pageviews load which is not what I expect.

If a control is set to "Visible=false" I would expect it to be completely removed from the server side and have no possibility to render. Why is this not happening? Here's some of the relevant code:

<telerik:RadTabStrip ID="tabs" runat="server" MultiPageID="pages" AutoPostBack="true" ShowBaseLine="true" Align="Right">

<Tabs>

<telerik:RadTab Text="Tab1" PageViewID="Page1" Value="Tab1" Visible="false" />

<telerik:RadTab Text="Tab2" PageViewID="Page2" Value="Tab2" Visible="false" />

</Tabs>

</telerik:RadTabStrip>

<telerik:RadMultiPage ID="pages" runat="server" RenderSelectedPageOnly="true">

<telerik:RadPageView ID="Page1" runat="server">

...

tabs.FindTabByValue("Tab1").Visible = HasPermission("Tab1");

tabs.FindTabByValue("Tab2").Visible = HasPermission("Tab2");

...

foreach (RadTab tab in tabs.Tabs)

{

pages.FindPageViewByID(tab.PageViewID).Visible = tab.Visible;

}

if (tabs.Tabs.Count(x => x.Visible) > 0)

{

tabs.SelectedIndex = 0;

pages.SelectedIndex = 0;

}

TabStrip

answered on 08 Oct 2013

0 answers

98 views

ASP.NET Custom User Controls and NeedDataSource Event Sequence

Hi,

As a Telerik newbie, I'd like to seek some wisdom on RadGrid implementation. I have a single ASP.NET page that is structured with two custom user controls: one for getting user inputs and another for displaying results based on inputs. The custom controls look like the following:

// ctrlInput.ascx.cs

// consists of several controls (dropdown lists, checkboxes and a submit button)

public event EventHandler BtnClickEvent;

protected void Btn_Click(object sender, EventArgs e)

{

BtnClickEvent(this, e);

}

//ctrlRadGrid.ascx.cs

//display result table based on ctrlInput values

public event EventHandler MyGridNeedDataSource;

protected void RadGrid1_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)

{

MyGridNeedDataSource(this, e);

}

When user makes proper selection on ctrlInput and then click on submit button, BtnClickEvent will be raised to the containing aspx page, which looks like this:

// MyPage.aspx.cx

protected void Page_Init(object sender, EventArgs e)

{

ctrlInput1.BtnClickEvent += new EventHandler(Foo_btnClickEvent);

ctrlRadGrid1.MyGridNeedDataSource += new EventHandler(myGrid_NeedDataSource);

}

protected void Page_Load(object sender, EventArgs e)

{

// toggle panel visibility

if (!IsPostBack)

{

pnlInputs.Visible = true;

pnlResults.Visible = false;

}

else

{

pnlInputs.Visible = false;

pnlResults.Visible = true;

}

protected void myGrid_NeedDataSource(object sender, EventArgs e)

{

if (ViewState["MyParams"] != null)

      {

         myGrid.DataSource = GetData(ViewState["MyParams"]);

      }

}

protected void Foo_btnClickEvent(object sender, EventArgs e)

{

var ctrl = (ctrlInput)sender;

      ViewState["MyParams"] = ctrl.InputParams;

}

private DataTable GetData(string param)

{

//DONE: call stored procedure with param

}

When myGrid_NeedDataSource fires for the first time, there's nothing to pass to GetData because Foo_btnClickEvent, which contains user's inputs, is always fired "afterwards". Can someone please shed some lights on how to achieve this or even suggest a better design/implementation?

Thanks in advance,

General Discussions

asked on 08 Oct 2013

2 answers

101 views

[Solved] RadSocialShare in radlistview with JSON

how to proceed with an element RadSocialShare radlistview fed on the client side with JSON?

SocialShare

answered on 08 Oct 2013

3 answers

148 views

[Solved] RadWindow and MDI - Minimize button does not work

Hello,

I am using:

RadControls for ASP.NET v. 2013.2.717.40
.NET Framework 4.0
Windows 7 Enterprise 64-bit
Visual Studio 10
IE 9 and Firefox 24

I am trying to create an application based on the Window - RadWindow and MDI. So far, most everything is working as it should. The problem is that the Minimize button on each of the RadWindows does not work properly. Sometimes it works one time only if I click it right after opening a RadWindow, then it stops working all together.

I try to post an example application but your online demo has this problem as well.

Is there a fix for this problem?

Thanks,
Randall Price
Senior Developer
Virginia Tech

Window

answered on 08 Oct 2013

12 answers

277 views

Scheduler inside TabStrip

Hello,

I have a TabStrip with a scheduler inside each Tab. On FormLoad I load the info inside each Scheduler.
It seems that when a Scheduler is inside a Tab, all the appointments have Width: 0px, except for the tab that is selected.
If I change Tabs and refresh, the appointments will show, but will disappear in the other Tabs.

You can look at examples attached.

Thank you,

Jeremy

Scheduler

answered on 08 Oct 2013

1 answer

1.2K+ views

Set drop down height of radcombobox dynamically

i'm setting the scroll area of the radgrid dynamically on gridcreated:

var heightResolution = screen.height;
var screenHeight = heightResolution - (heightResolution * 0.40);

$get("content").style.height = screenHeight;

var scrollArea = sender.GridDataDiv;

scrollArea.style.height = screenHeight + "px";

is there any way to do something similar with the drop down portion of the radcombobox?

I'd like to set the height to a specific percentage of the page based on user's resolution.

ComboBox

answered on 08 Oct 2013

2 answers

81 views

xhtml is not a member of Telerik.Web.UI.RadEditor

Hi

I migrated my application from .NET 1.1 to 3.5. We are using Rad Editor. After migration we are getting following error.

'xhtml' is not a member of 'Telerik.Web.UI.RadEditor' - Please let me know any additional references we need add?

Thanks and Regards

Manivannan Nandagopalan

Editor

answered on 08 Oct 2013

2 answers

324 views

[Solved] Why doesn't "yyyyMMdd" work as a date format?

I've got my DatePicker (and calendar and input), but it doesn't work with this "yyyyMMdd" format. It works with spaces or characters between, but not all together. Why not? When I try to use this format and pick a date from the calendar, the input part gives me the little warning sign. Some relevant code:

<telerik:RadCalendar runat="server" ID="RadCalendar"/>

<telerik:RadDatePicker runat="server" ID="rdpRequestDate" SharedCalendarID="RadCalendar">>

<DateInput DateFormat="yyyyMMdd" DisplayDateFormat="yyyyMMdd" />

</telerik:RadDatePicker>

Calendar

answered on 08 Oct 2013

5 answers

284 views

Export to excel not working in internet explorer 9.0.8112.16421

I can't seem to get the export to excel button to work in internet explorer version 9.0.8112.16421, both with and without ajax. Clicking the export button does not produce any download prompt, nothing happens at all. Writing a separate button to call the export in code-behind doesn't work either. Even the demo does not work. Tried visiting http://demos.telerik.com/aspnet-ajax/grid/examples/export/biffexport/defaultcs.aspx and clicking on the export button, no dice.

Seems to occur only for IE version 9.0.8112.16421 (that's the version on my pc). No problem for IE version 8, or chrome or fire fox or opera (working well). Anyone experiencing the same issue? Is this an IE specific bug, specific to this version? Any fix for this?

Thanks for reading

Grid

answered on 08 Oct 2013

3 answers

163 views

Formatting Footer cell in OnExportCellFormatting

Hi, I have a currency value column in a radgrid, and exporting to excel using this function for formatting the currency cells

        protected void RadGrid_OnExportCellFormatting(object sender, ExportCellFormattingEventArgs e)
        {
            if (e.FormattedColumn.DataType == typeof (long))
            {
                e.Cell.Style["mso-number-format"] = "Currency";
            }
       }

This is based on advice in another post in this forum. Works very well, but it doesn't format the footer item which is an aggregated sum value. How do I format the footer to be currency as well?

Thanks for reading

Grid

answered on 08 Oct 2013