Hi there,

I check the display-property of the columns of a RadGrid on PreRender, but it isn't actual.

If I Hide/Show another Column or sort a column, the PreRender Function gives the correct display-property.

Here my code:

<%

 

@

Page

Language

="VB"

AutoEventWireup

="false"

CodeBehind

="Default.aspx.vb"

Inherits

="TelerikWebAppHideUnhideColBug._Default"

%>

 

<%

 

 

@

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">

 

 

 

 

<

title

></

title

>

 

</

 

 

 

head

>

 

<

 

 

 

body

>

 

 

 

 

<

form

id

="form1"

runat

="server">

 

 

 

 

<

script

type

="text/javascript">

 

 

 

 

function

RadGridCSC_ColumnHidden(sender, args) {

 

$find(

 

 

"<%= RadAjaxManager1.ClientID %>"

).ajaxRequest(

"ColumnHidden"

);

 

}

 

 

 

function

RadGridCSC_ColumnShown(sender, args) {

 

$find(

 

 

"<%= RadAjaxManager1.ClientID %>"

).ajaxRequest(

"ColumnShown"

);

 

}

 

 

 

function

RadGridCSC_ColumnRezised(sender, args) {

 

$find(

 

 

"<%= RadAjaxManager1.ClientID %>"

).ajaxRequest(

"ColumnRezised"

);

 

}

 

 

 

</

script

>

 

 

 

 

<

telerik

:

RadAjaxManager

ID

="RadAjaxManager1"

runat

="server">

 

 

 

 

</

telerik

:

RadAjaxManager

>

 

 

 

 

 

<

telerik

:

RadScriptManager

ID

="RadScriptManager1"

runat

="server"></

telerik

:

RadScriptManager

>

 

 

 

 

 

<

div

>

 

 

 

 

<

telerik

:

RadGrid

ID

="RadGrid1"

runat

="server"

AllowFilteringByColumn

="True"

 

 

 

 

AllowPaging

="True"

PageSize

="50"

Width

="100%"

Height

="650"

AllowSorting

="True"

CellSpacing

="0"

 

 

 

 

EnableHeaderContextMenu

="true"

EnableHeaderContextFilterMenu

="true">

 

 

 

 

 

<

GroupingSettings

CaseSensitive

="false"></

GroupingSettings

>

 

 

 

 

<

MasterTableView

AutoGenerateColumns

="false"

AllowFilteringByColumn

="True"

CommandItemDisplay

="Top"

width

="100%"

ClientDataKeyNames

="ProductID">

 

 

 

 

<

PagerStyle

AlwaysVisible

="true"

Mode

="NextPrevAndNumeric"

/>

 

 

 

 

<

Columns

>

 

 

 

 

<

telerik

:

GridBoundColumn

DataField

="ProductID"

Visible

="true"

FilterControlWidth

="60%"

HeaderStyle-Width

="80"

ItemStyle-Width

="60"

HeaderText

="ProductID"

UniqueName

="Version2"

ColumnGroupName

="SoftwareInformation"

ItemStyle-HorizontalAlign

="Left"

HeaderStyle-HorizontalAlign

="Left"

/>

 

 

 

 

<

telerik

:

GridBoundColumn

DataField

="ProductName"

Visible

="true"

FilterControlWidth

="80%"

HeaderStyle-Width

="200"

ItemStyle-Width

="200"

HeaderText

="Product Name"

UniqueName

="ProductName"

ColumnGroupName

="SoftwareInformation"

ItemStyle-HorizontalAlign

="Left"

HeaderStyle-HorizontalAlign

="Left"

/>

 

 

 

 

<

telerik

:

GridBoundColumn

DataField

="UnitPrice"

 

 

 

 

Visible

="true"

DataType

="System.String"

FilterListOptions

="VaryByDataType"

 

 

 

 

FilterControlWidth

="80%"

HeaderStyle-Width

="270"

ItemStyle-Width

="270"

 

 

 

 

HeaderText

="UnitPrice"

 

 

 

 

UniqueName

="UnitPrice"

ColumnGroupName

="SoftwareInformation"

 

 

 

 

ItemStyle-HorizontalAlign

="Left"

HeaderStyle-HorizontalAlign

="Left"/>

 

 

 

 

<

telerik

:

GridBoundColumn

DataField

="ReorderLevel"

Visible

="true"

FilterControlWidth

="60%"

HeaderStyle-Width

="80"

ItemStyle-Width

="60"

HeaderText

="ReorderLevel"

UniqueName

="ReorderLevel"

ColumnGroupName

="SoftwareInformation"

ItemStyle-HorizontalAlign

="Left"

HeaderStyle-HorizontalAlign

="Left"

/>

 

 

 

 

<

telerik

:

GridBoundColumn

DataField

="Discontinued"

Visible

="true"

FilterControlWidth

="80%"

HeaderStyle-Width

="200"

ItemStyle-Width

="200"

HeaderText

="Discontinued"

UniqueName

="Discontinued"

ColumnGroupName

="SoftwareInformation"

ItemStyle-HorizontalAlign

="Left"

HeaderStyle-HorizontalAlign

="Left"

/>

 

 

 

 

</

Columns

>

 

 

 

 

</

MasterTableView

>

 

 

　

 

 

<

ClientSettings

AllowColumnsReorder

="true"

ReorderColumnsOnClient

="false">

 

 

 

 

<

DataBinding

Location

="http://demos.kendoui.com/service/Northwind.svc"

ResponseType

="JSONP">

 

 

 

 

<

DataService

TableName

="Products"

Type

="OData"

/>

 

 

 

 

</

DataBinding

>

 

 

 

 

<

Scrolling

 

 

 

 

AllowScroll

="true"

 

 

 

 

UseStaticHeaders

="true"

 

 

 

 

ScrollHeight

="300px"

/>

 

 

 

 

<

ClientEvents

OnColumnShowing

="RadGridCSC_ColumnShown"

OnColumnHidden

="RadGridCSC_ColumnHidden"

/>

 

 

 

 

</

ClientSettings

>

 

 

 

 

</

telerik

:

RadGrid

>

 

 

 

 

</

div

>

 

 

 

 

</

form

>

 

</

 

 

 

body

>

 

</​

 

 

 

html

>

 

​

Imports

 

 

Telerik.Web.UI

 

 

Partial

 

 

Class

_Default

 

 

 

 

Inherits

System.Web.UI.

Page

 

 

 

 

Private

Sub

RadGrid1_PreRender(sender

As

Object

, e

As

System.

EventArgs

)

Handles

RadGrid1.PreRender

 

 

 

 

Dim

col

As

Telerik.Web.UI.

GridBoundColumn

 

 

col = RadGrid1.Columns.FindByUniqueName(

 

"Version2"

)

 

 

 

 

Debug

.Print(col.UniqueName +

":"

+ col.di.Display.ToString)

 

 

 

 

End

Sub

 

End

 

 

 

Class​

 

 

 

​​​​​​​
If I toogle the hide/show a column the Output are:

Version2:True

Version2:False

Version2:False

Version2:False

Version2:False

Version2:False

How can I get the actual display of a Column?

Thanks
Thomas

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It seems the controls can still be used in older .NET versions as I can paste code for the controls into my .apsx files in my .NET 4 project and they seem to work OK.

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Our OData Service returns "2014-03-14T23:00:00" with version 3 while the older version returns dates like /Date(1394838000000)/

Can you confirm that this is a bug on your end?  We are using the 2014 Q1 update which allowed us to upgrade our OData service to Version 3.

I have 3 dropdowncolumns in this radGrid.
The first one "Pnum" is working well, I can select the value and save it, and the saved value is visible in the grid when not in edit mode. If I open the record in edit mode the dropdown stays on the selected value unless I select a new value.
The other two dropdowncolumns are giving me problems. The selected value is saved to the db but is not visible when the grid is not in edit mode and if I open the record in edit mode after having saved it,  the dropdown value is on the default value.

How can I have the two dropdowncolumns "minutes" and "hours" acting like the "Pnum" column? Why they are acting in a different way?

I mean after selecting the value and update the record have the value shown in the grid. 

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Hi,

I am using the Q3 1114 2013 version of your AJAX for ASP .NET controls.
I am using the Rad Grid and have added a checkbox to each Group Header in the grid.  I do that in ItemDataBound...

The users can then check the checkbox and click a Save button that I've put in the CommandItemTemplate.

I have code in the ItemCommand event handler that should loop through all of the GroupHeaders, and get the state of that checkbox (along with other information I've put in the GroupHeader).

MY PROBLEM:
When my code loops through the GroupHeaders of the grid (in the ItemCommand event), the DataRowView is Nothing.
My code is as follows (which is basically the same code that works when I create the checkbox in ItemDataBound):

For Each headerItem As GridGroupHeaderItem In theRadGrid.MasterTableView.GetItems(GridItemType.GroupHeader)
  Dim groupDataRow As DataRowView = CType(headerItem.DataItem, DataRowView)
Dim chk As CheckBox = headerItem.FindControl(GetGroupHeaderParentCheckboxName(groupDataRow("ParentAppType").ToString(), groupDataRow("ObjectTypeID").ToString(), groupDataRow("ParentID").ToString()))
  If (chk.Checked) Then
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  End If
Next

In the code above, the groupDataRow variable is Nothing.  Can you tell me what I'm doing wrong?

I have other code in this same method that loops through all of the data rows in the grid and gets information from the data rows, and it works fine.

Why can I not access the DataRowView of the GroupHeader?

Thanks,
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Hello, i need help to export data from a RadGrid to an Excel File template. This file already has format, has freeze rows, formulas in some cells...

I can't find a property or option that allow me to define a template to use in the export action.
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Thank you!

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