Questions on UI for ASP.NET AJAX Forum

1 answer

72 views

New to RadControls, . . . help with Rad Grid

HI

I'm new to the ASP.NET Web RadControls. I am taking over a project that uses them and trying to address some bug issues. What I am seeing are pages that behave differently.

In one case, what I'm seeing is a page where the grid extends past the bottom of the page and a vertical scroll bar on the right side. If I scroll the vertical scroll bar to the bottom, I still cannot see the bottom of the grid unless I enlarge the Browser frame past the height of the grid. The RadGrid appears to snap to the status bar of the IE 9 Browser.

In another case, the RadGrid must have paging enabled, but what I see are the grid rows also extending past the bottom of the browser screen with a vertical scroll bar. I can scroll the view to the bottom of the grid where the paging controls come partially into view. If I refresh the page or enlarge the browser height, I can see the entire paging row.

I would like the RadGrid to snap to the browser window and present the paging controls at the bottom. It makes no sense to me to have a grid with paging controls AND a vertical scroll bar on the side to scroll down to the paging controls.

How to I do that?

Thanks.

Grid

answered on 09 Dec 2011

4 answers

131 views

ListBox Drag And Drop behavior

Dear Sir,

I am using Listbox drag and drop feature for my demo application. But today I have seen a strange things happend to the drag and drop control. It lost the scollbar,Border and all arrows. Please find the attached screenshot file which has the normal and strange screens.

I am not able to re produce the error. I am using Telerik 2010 Q2 Version.

Thank you

Regards,
Muru

ListBox

answered on 09 Dec 2011

1 answer

271 views

Bind Grid to one page of data at a time?

Hello,

I'm using a RadGrid to load a very large set of records. My application pulls data from the database into a domain of business objects. On the "OnItemDataBound" event I access the bound object to configure each row. This object contains child objects that must be accessed to make determinations as well. I bind the RadGrid to a list of business objects "List<MyObject>". This is done by setting the grid datasource and then calling databind afterwards.

I have my domain setup to take in page numbers so that it only pulls back data for a specific page and loads the domain of objects for that one page. If we were to pull all data for the grid we would be loading many many business objects that would greatly decrease the performance of the grid.

My question is how can I use paging for the RadGrid and still only load up one page of data at a time? Is this even possible? Or maybe you have a better solution?

Thanks!!

Grid

answered on 08 Dec 2011

1 answer

98 views

AjaxManager and TabStrip

I have an ajax manager in default.aspx defined as below

<telerik:RadAjaxManager runat="server" ID="LDWorld">
<AjaxSettings>
<telerik:AjaxSetting AjaxControlID="hllLove">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="hllLove" LoadingPanelID="pnlPeace" />
<telerik:AjaxUpdatedControl ControlID="radPrimaryTab" />
<telerik:AjaxUpdatedControl ControlID="radMultiPage" />
</UpdatedControls>
</telerik:AjaxSetting>
<telerik:AjaxSetting AjaxControlID="btnFriendship">
<UpdatedControls>
<telerik:AjaxUpdatedControl ControlID="btnFriendship" LoadingPanelID="pnlPeace" />
<telerik:AjaxUpdatedControl ControlID="rcbAnger" />
<telerik:AjaxUpdatedControl ControlID="rcbSmile" />
</UpdatedControls>
</telerik:AjaxSetting>
</AjaxSettings>
</telerik:RadAjaxManager>

hllLove is in default.aspx and hence no issues. However btnFriendship, rcbAnger and rcbSmile are in 1.ascx loaded within pageview 1.

Assuming if 2.ascx has an overlapping set of controls in this same name would it give an issue or RadAjaxManager would smartly take care of the same?

[P.S.: The names of the controls have been fictitiously provided because I can not give the exact names as in my current project]

Ajax

answered on 08 Dec 2011

2 answers

71 views

Will Telerik ever bother to solve Tabclick first time event issue?

the Tabstrip click tab_click event handler does not get executed. It does only on at least after some postback in the contained page views.

I have been seeing the variants of this thread http://www.telerik.com/community/forums/aspnet-ajax/tabstrip/rad-tab-click-event-not-firing-the-first-time.aspx where there had been kind and creeds of laments to rant on this issue and a kind of callous and/or lack of response/bug fix from telerik team.

Can some one help out please?

TabStrip

answered on 08 Dec 2011

4 answers

202 views

[Solved] Chart Dpi settings

Is there a way to set the DPI settings for the chart image. I did notice an internal property for BitmapResolution;however I did not see anyway thru the control to set that.

While I could use the code below to save a 300dpi image of the chart, isn't the source images (the generated chart) dpi set to the chart defaults?

System.Drawing.Bitmap image = RadChart1.GetBitmap() as System.Drawing.Bitmap;

image.SetResolution(300, 300);

image.Save(@"C:\myimage.png");

I would not want to take at 96dpi image and convert it into a 300dpi image, where are those extra dpi's gonna come from? I think of that like taking a 200px X 200px image and resizing to 400px X 400px, which would not produce the same quality image I would get pixelation.

I have created a Chart generator control where the user can enter data etc.. and generate the chart from the data. Then I want to allow them to save the generated chart image at a minimum of 300dpi since this will be added to a print ready pdf. I would want a high quality image produced since this is for printing.

I appreciate any information or advice on this matter.

Thank you!

Chart (Obsolete)

answered on 08 Dec 2011

2 answers

169 views

[Solved] LoadingPanel and jquery SlideUp

Afternoon everyone, I have a strange issue, when I use the jquery slidup function on a div that contains my 'search' fields and the grid in its own div, everything works fine except the loading panel. it creates its loading panel in side the grid as it should but when search fields div 'slides up' the rest of the html moves up as it should, except the loading panel...

here is some pseudo mark up to explain what i am talking about...

<script>

function hideSearchFields(){

$("#searchDiv").slideUp('medium');

}

</script>

<telerik:RadAjaxManager ID="radAjaxManager" runat="server">

<%--<ClientEvents OnResponseEnd="RadAjaxManagerResponseEnd" />--%>

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="SearchLinkButton">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="ResultsRadGrid" LoadingPanelID="RadAjaxLoadingPanel1" />

</UpdatedControls>

</AjaxSettings>

</telerik:RadAjaxManager>

</telerik:AjaxSetting>

<div id="searchDiv">

labels textboxes drop downs etc....

<asp:linkbutton id="SearchLinkButton" runat="server" OnClientClick="hideSearchFields();" OnClick="search" />

</div>

<div>

<telerik:radgrid id="ResultsRadGrid runat="server">

my grid

</telerik:radgrid>

</div>

<div>

a bunch more html

</div>

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Simple">

</telerik:RadAjaxLoadingPanel>

Any help would be greatly appreciated!

Ajax

answered on 08 Dec 2011

1 answer

161 views

Scriptmanager error while using RenderControl

Hi,

I have a asp .net page which has RadGrid inside the page. My objective is: on click of a button on the page, i need to get the rendered html of the radgrid so that i can do more processing (for printing/taking screenshots of the grid alone).

Grid:

<telerik:RadGrid ID="grid1" ShowFooter="true"

OnNeedDataSource="grid1_NeedDataSource" ShowStatusBar="true" runat="server" OnItemDataBound="GridCollateralDataBound"

AllowFilteringByColumn="false">

<ClientSettings AllowColumnsReorder="true" ReorderColumnsOnClient="true" AllowColumnHide="true" ColumnsReorderMethod="Reorder">

<Scrolling AllowScroll="true" SaveScrollPosition="true" UseStaticHeaders="false" />

</ClientSettings>

<Columns>

 

                      .......

</Columns>

</telerik:RadGrid>

I have the button which tries to get the render html for this page but it unfortunately fails.

void ButtonClick(object sender, EventArgs e)

{

System.IO.StringWriter stringWriter = new System.IO.StringWriter();

HtmlTextWriter htmlWriter = new HtmlTextWriter(stringWriter);

grid1.RenderControl(htmlWriter);

if (stringWriter != null)

stringWriter.Dispose();

if (htmlWriter != null)

htmlWriter.Dispose();

Here "grid1.RenderControl" code throws error that "Script control 'rghcMenu' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors().
Parameter name: scriptControl".

I tried setting grid1's RegisterWithScriptManager to false before calling rendercontrol and also tried adding the scriptmanager explicitly for grid1 (added a panel with scriptmanager at run-time and and then grid1 inside). All these options still were still throwing the same error.

Your help on this is appreciated.

Note: I am using the latest version of telerik radgrid: 2011.2.915.40

Regards,
Kishan G K

Grid

answered on 08 Dec 2011

3 answers

158 views

grid export to pdf, records per page

This is fairly easy to accomplish using the <?hard-pagebreak?>.

Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemCreated

If e.Item.ItemIndex Mod 7 = 0 AndAlso e.Item.ItemIndex > 1 AndAlso TypeOf e.Item Is GridDataItem Then

e.Item.Attributes.Add("pageBreak", "pageBreak")

End If

End Sub

This inserts a pageBreak="pageBreak" on the 8th <tr>...ie.. <tr pageBreak="pageBreak">

Then using pdfExporting you replace pagebreak="pagebreak" with closing the table, the hard pagebreak, opening the new table. It's hard to get the tags correct because I could not find any documentation about how this xhtml is fabricated, however I was able to save the raw xhtml to file and review it to get the replace correct and fix errors.

Protected Sub RadGrid1_PdfExporting(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridPdfExportingArgs) Handles RadGrid1.PdfExporting

Dim replacement As String = "</tbody></table><?hard-pagebreak?>" & _

"<table >" & _

"<colgroup>" & _

"<col />" & _

"</colgroup>" & _

"<thead>" & _

"<tr>" & _

"<th scope='col' > </th><th scope='col' >Print Column</th>" & _

"</tr>" & _

"</thead>" & _

"<tbody>" & _

"<tr "

e.RawHTML = e.RawHTML.Replace("<tr pageBreak=""pageBreak"""

, replacement)

Dim FILE_NAME As String = "c:\inetpub\PDFServer\file.html"

If System.IO.File.Exists(FILE_NAME) = True Then

Dim objWriter As New System.IO.StreamWriter(FILE_NAME)

objWriter.Write(e.RawHTML)

objWriter.Close()

End If

End Sub

This is a really great feature of radgrid as it makes fabricating these pdfs about as easy as writing html. I just wish there was more documentation on how to do this because it took me forever to find this information. I hope someone else can use these examples to speed up their development.

Grid

answered on 08 Dec 2011

5 answers

215 views

Multiline style

Can you guys please give me a .riMulti on the root when the textbox is in multi-line mode please? I need to style the multi differently than the normal textboxes

(in the .skin file)

So I know I can add a cssclass to the TBs in multline mode, but that means my developers will have to remember to do that, and they never will...but if I define it in the skin file, whenever they go into multiline mode it'll just be styled properly.

So my problem is the style I need to change is on the wrapper span, I know the regular is an input while multi is a textarea...

Input

answered on 08 Dec 2011