Questions on UI for ASP.NET AJAX Forum

1 answer

113 views

Radgrid frozen columns problem when grid in RadTab, on TabChange event

Hi,
I think I found a problem in the Asp Ajax Controls suite, but to reproduce it, is rather difficult. Here it is:

Add a RadTabStrip to a aspx page. Add two tabs. Bellow the tabs, add a RadMultiPage control, and inside add, for each tab, a RadPageView, so that when a tab changes the corresponded pageview will be selected.

Set first tab on radTabStrip as Selected = true.
Set 0 as a default selected tab index on the RadMultiPage (first tab is selected).

Now, on the second tab strip, add a radgrid. Set AutoGenerateColumns to false, and dinamically add some rad columns on Page_Init (so that they are persisted in viewstate, as was nicely described in the online help). In my example, I've added 41 columns, I need to show some data in a pivoted manner. On this pivoted view, i need to set the first column frozen, (so that the other 40 can slide), and so I did, at design time.

If you're still following :), here is the problem:
The page loads fine, with the first tab selected. When I select the second tab, the first column that should be frozen is not frozen but is sliding along with the others.
I've noticed that if I set that the second tab that contains the grid as selected by default when the page loads, the frozen column remains frozen and is acting as it should. Then if I select the first tab, and than reverse back to the second, the issue reapears.

I'm using the ASP.NET Ajax Controls, version Q2 2010.
Update: Forgot to mention: the bug appears only in IE7 and IE8 :).

Thanks for your help.
Lucian

Grid

answered on 18 Aug 2010

2 answers

159 views

How to grab ListTextField of GridDropDownColumn

Hi,

Can anyone help. I have a grid with a GridDropDownColumn as such:

<telerik:GridDropDownColumn UniqueName="CategoryName" HeaderText="Category" DataSourceID="DDL_DS" SortExpression="DC_Name" ListTextField="DC_Name" ListValueField="DC_Id" DataField="DC_Id" />

Grouping is enabled, and when a user drags the Category Header to the grouping pane, my grid groups fine. However, the group header displays the Id, not the Name. I've tried using ItemDataBound as below, but I just can't seem to grab that ListTextField.

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)

{

if (e.Item is GridGroupHeaderItem)

{

GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;

DataRowView groupDataRow = (DataRowView)e.Item.DataItem;

item.DataCell.Text =

"( " + groupDataRow["DC_Id"].ToString() + " ) " ;

}

}

Thanks in advance,
J

Grid

answered on 18 Aug 2010

1 answer

194 views

grid inside a treeview

Hi,

I would like to place a Grid inside a treeview ,treeview nodes are dynamic..

Click on a particular node , I have to show a grid/list to display values (like a matrix)..

Code that I am trying is below:-

Somehow the datatable is not binding to the grid & generating the script error

//creates a Node "Interventions"

RadTreeNode nodeInterventions = new RadTreeNode();

nodeInterventions.Text =

NodeConstants.InterventionNode;

//nodeInterventions.ContextMenuID = "MainContextMenu";

e.Node.Nodes.Add(nodeInterventions);

DataTable dtintervention=new DataTable();

dtintervention.Columns.Add(

"INTERVENTION");

dtintervention.Columns.Add(

"DISCIPLINE");

dtintervention.Columns.Add(

"FREQUENCY");

dtintervention.Columns.Add(

"DURATION_IN_WEEK");

foreach (DataRow row in data.Rows)

{

dtintervention.Rows.Add(row[

"INTERVENTION"].ToString(), row["DISCIPLINE"].ToString(), row["FREQUENCY"].ToString(), row["DURATION_IN_WEEK"].ToString());

}

//adding a dynamic grid to treeview

RadGrid rgrv_Interventions = new RadGrid();

rgrv_Interventions.DataSource = dtintervention;

rgrv_Interventions.DataBind();

//addign the control to the treenode

RadTreeNode nodeint = new RadTreeNode();

nodeint.Controls.Add(rgrv_Interventions);

nodeInterventions.Nodes.Add(nodeint);

}

Hi...
I am able to place a normal grid view..but why not a radgrid..

regards
Delia Joe

Grid

answered on 18 Aug 2010

1 answer

216 views

EnableAnimation when using RadDock1.Collapsed = True in code behind

When I collapse/expand my RadDock in code-behind using RadDock1.Collapsed = True, even if I have EnableAnimation="True" set in my RadDock1, it does not show the animation. Is there a way to do this?

Dock

answered on 18 Aug 2010

2 answers

92 views

[Solved] Export functionality now working in Appointment context menu.

Hi telerik team

I am very pleased with your constant support over my problems but i m stuck with new problem.

I need to add "Export to iCal" link in Appointment context menu.
like:

<appointmentcontextmenus>

<telerik:RadSchedulerContextMenu runat="server" ID="SchedulerAppointmentContextMenu">

<Items>

<telerik:RadMenuItem Text="Edit" Value="CommandEdit" />

<telerik:RadMenuItem IsSeparator="True" />

<telerik:RadMenuItem Text="Export" Value="Export" />

</Items>

</telerik:RadSchedulerContextMenu>

</appointmentcontextmenus>

but on "AppointmentContextMenuItemClicking" event is not working as required. In debugging mode it never comes to this event. incase of "CommandEdit" it automatically opens the Edit form (i.e. Advanced Edit template).

protected void RadScheduler1_AppointmentContextMenuItemClicking(object sender, AppointmentContextMenuItemClickingEventArgs e)

{

if (e.MenuItem.Text.Contains("Export"))

{

WriteCalendar(RadScheduler.ExportToICalendar(e.Appointment));

e.Cancel = true;

}

Is there any way to call "WriteCalendar(String data)" method through appointment context menu?
please help me to solve this problem.

Regards
Manmeet Singh

Scheduler

answered on 18 Aug 2010

1 answer

239 views

Custom File Browser

Hi There,

Im trying to implement a custom datasource / provider for the filebrowser control.
I've looked at the related samples but am unsure which route to follow;

Subclassing the existing Telerik.Web.UI.Widgets.FileSystemContentProvider and only overriding methods that need changed.
Implementing a new Telerik.Web.UI.Widgets.FileBrowserContentProvider

Any help / pointers / sample code on how to achieve this would be much appreciated!
Below is sample code that is used to retrieve files from a remote machine (Linux) and bind it to a treeview. Also include is the accosiated XML RPC wrapper class.

Usage:

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

'set root path to browse on remote system

Dim RootPath As String = "/dcinvol2/jobs"

'create root node for treeview

Dim RootNode As New TreeNode(RootPath)

'instantiate new XML RPC class

Dim XmlRpc As New Magic.XML_RPC

If XmlRpc.IsRunning Then

'return all files and folders

Dim FilesAndFolders As New ArrayList()

FilesAndFolders.AddRange(XmlRpc.GetFolders(RootPath, False, True, 1))

If FilesAndFolders.Count > 0 Then

'add each file or folder to rootnode

For Each FileOrFolder As String In FilesAndFolders

Dim ChildNode As New TreeNode(FileOrFolder)

RootNode.ChildNodes.Add(ChildNode)

Next

'add rootnode to treeview

TreeView1.Nodes.Add(RootNode)

End If

End Sub

Class:

Imports CookComputing.XmlRpc

Namespace Magic

Public Class XML_RPC

Private _iproxy As XmlRpcInt

Public Sub New()

_iproxy = CType(XmlRpcProxyGen.Create(GetType(XmlRpcInt)), XmlRpcInt)

End Sub

''' <summary>

''' Check if service is running.

''' </summary>

''' <returns>True if service is running, otherwise False.</returns>

Public Function IsRunning() As Boolean

Dim strRet As String

Try

strRet = _iproxy.IsServerRunning()

Catch ex As Exception

Return False

End Try

If strRet.Length > 0 And strRet <> Nothing Then Return True

Return False

End Function

''' <summary>

''' Gets all sub folders under the path specified.

''' <param name="path">Path to query.</param>

''' <param name="fullPath">Optional - return the full path</param>

''' <param name="returnFiles">Optional - return the files in a dir</param>

''' <param name="drill_to_level_x">Optional - return a depth of dirs</param>

''' </summary>

''' <returns>Array of paths.</returns>

Function GetFolders(ByVal path As String, Optional ByVal fullPath As Boolean = True, Optional ByVal returnFiles As Boolean = False, Optional ByVal drill_to_level_x As Integer = 0) As Array

Dim al As New ArrayList

Try

Dim a As Array = Nothing

a = _iproxy.GetFolders(path, fullPath, returnFiles, drill_to_level_x)

For Each s As String In a

'Perform clean up

If s = "." Then Continue For

If s.StartsWith(".") Then s = s.TrimStart(".")

If s.StartsWith("/") Then s = s.TrimStart("/")

al.Add(s)

Next

Catch ex As Exception

Return al.ToArray

End Try

Return al.ToArray

End Function

''' <summary>

''' Looks for file specified and returns file in binary format.

''' </summary>

''' <param name="filename">The full path to file, including filename.</param>

''' <returns>Array in bytecode format.</returns>

Function GetBinaryFile(ByVal filename As String) As Array

Dim a As Array = Nothing

Try

a = _iproxy.GetBinaryFile(filename)

Catch ex As Exception

Return a

End Try

Return a

End Function

''' <summary>

''' Checks if given path exists.

''' </summary>

''' <param name="path">The full path to folder/file.</param>

''' <param name="folder">Check folder or file exists.</param>

''' <returns>True if path exists, False otherwise.</returns>

Function PathExists(ByVal path As String, Optional ByVal folder As Boolean = True) As Boolean

Try

Return _iproxy.PathExists(path, folder)

Catch ex As Exception

Return False

End Try

End Function

''' <summary>

''' Returns number of files in given path, currently this descends into sub folders.

''' </summary>

''' <param name="path">The full path to folder.</param>

''' <returns>Number of files in the path.</returns>

Function GetNumberOfFiles(ByVal path As String) As Integer

Dim i As Integer = 0

Try

i = CInt(_iproxy.GetNumberOfFiles(path))

Catch ex As Exception

Return i

End Try

Return i

End Function

''' <summary>

''' Returns number of kilobytes in given path.

''' </summary>

''' <param name="path">The full path to folder.</param>

''' <returns>Number of kilobytes in the path.</returns>

Function GetByteSize(ByVal path As String) As Integer

Dim i As String = 0

Try

i = CInt(_iproxy.GetByteSize(path))

Catch ex As Exception

Return i

End Try

Return i

End Function

End Class

End Namespace

Thanks,
Gordon

FileExplorer

answered on 18 Aug 2010

0 answers

59 views

Example of [Telerik.Web.ClientControlMethod(true)] ?

Hi all,

It looks like this server-side method attribute allows the server method to be controlled somehow through client scripting.

Is this correct? If so can a short example be provided please?

I tried just calling the function in script and got an 'Object was expected' null reference error.

Thanks :)

Ajax

asked on 18 Aug 2010

5 answers

776 views

EnableLinqExpressions throwing exception

Hello,

Im having an issue with the RadGrid and allowing Column Filtering. Basicly what has happened is that we had a grid. we had filtering on it and the filtering worked for awhile. we updated our controls to .1314, afterwards filtering started throwing an exception "no property or field 'username' exist in object". from my understanding this was an issue nearly a year ago and hotfix was applied.

to make things worse is that through searching the forums i found out setting the EnableLinqExpressions = false will allow the filtering to happen without throwing an exception, but when i set that property to false, the paging on the grid no longer works. the telerik pager, defaults to page 1, but when you click page 3, the pager is saying page 3 but the grid itself is still displaying records from page 1.

for awhile i believed it to be an ajax problem and i disabled all the ajax on the page and the problem still persist.

so, in a nutshell, if EnableLinqExpression is not set to False, we cannot use the Filtering provided in the control, if we do set EnableLineExpression to False, the pager does not work appropriately.

any help at all would be appreciated.

    
            public partial class esAdmin_test : System.Web.UI.Page 
        
            { 
        
                public RadPane gridPane; 
        
                private UserBE.SelectionTypes _selectType = 0; 
        
                //public RadAjaxManager RadAjaxManager1; 
        
                //public RadAjaxLoadingPanel RadAjaxLoadingPanel1; 
        
                public UserBE.SelectionTypes SelectType 
        
                { 
        
                    set { _selectType = value; } 
        
                    get { return _selectType; } 
        
                } 
        
                protected void Page_Load(object sender, EventArgs e) 
        
                { 
        
                    RadSplitter mpSplitter = (RadSplitter)Master.FindControl("NestedSplitter"); 
        
                    if (mpSplitter != null) 
        
                    { 
        
                        ArrayList panes = mpSplitter.GetPanes(); 
        
                        RadPane pane = (RadPane)panes[2]; 
        
                        gridPane = (RadPane)panes[1]; 
        
                        int paneIndex = pane.Index; 
        
                        mpSplitter.Items.RemoveAt(paneIndex); 
        
                    } 
        
                    //RadAjaxManager1 = (RadAjaxManager)Master.FindControl("RadAjaxManager1"); 
        
                    //RadAjaxLoadingPanel1 = (RadAjaxLoadingPanel)Master.FindControl("RadAjaxLoadingPanel1"); 
        
                    //RadAjaxManager.GetCurrent(this.Page).AjaxSettings.AddAjaxSetting(this.RadAjaxManager1, this.RadGrid1, RadAjaxLoadingPanel1); 
        
                    //RadAjaxManager.GetCurrent(this.Page).AjaxSettings.AddAjaxSetting(this.RadGrid1, this.RadGrid1, RadAjaxLoadingPanel1); 
        
                } 
        
                protected void RadGrid1_OnNeedDataSource(object source, Telerik.Web.UI.GridNeedDataSourceEventArgs e) 
        
                { 
        
                    SessionManager _session = new SessionManager(); 
        
                    ObjectContainerDataSource _datasource = new ObjectContainerDataSource(); 
        
                    _datasource.DataObjectTypeName = "Peminic.Business.BusinessEntities.UserBE"; 
        
                    _datasource.DataSource = UserBE.GetBySelectionType(UserBE.Context.AreoOfResponsibility, _session.UserID, SelectType); 
        
                    RadGrid1.DataSource = _datasource; 
        
                } 
        
                protected void rdoSelectUser_SelectedIndexChanged(object sender, EventArgs e) 
        
                { 
        
                    SelectType = (UserBE.SelectionTypes)Convert.ToInt32(rdoSelectUser.SelectedValue); 
        
                    RadGrid1.CurrentPageIndex = 0; 
        
                    RadGrid1.Rebind(); 
        
                } 
        
                protected override void RaisePostBackEvent(IPostBackEventHandler sourceControl, string eventArgument) 
        
                { 
        
                    //RadGrid1.Rebind(); 
        
                    base.RaisePostBackEvent(sourceControl, eventArgument); 
        
                    if (sourceControl is RadAjaxManager) 
        
                    { 
        
                        if (eventArgument == "Rebind") 
        
                        { 
        
                            RadGrid1.MasterTableView.SortExpressions.Clear(); 
        
                            RadGrid1.MasterTableView.GroupByExpressions.Clear(); 
        
                            RadGrid1.Rebind(); 
        
                        } 
        
                        if (eventArgument == "ChangePageSize") 
        
                        { 
        
                            Session["itemsCount"] = this.RadGrid1.Items.Count; 
        
                            //Depending on the paticular scenario this value may vary. 
        
                            int rows = (Int32.Parse(this.gridPane.Height.Value.ToString()) - 20) / 32; 
        
                            if (rows >= 1) 
        
                            { 
        
                                RadGrid1.PageSize = rows; 
        
                                // Check whether the CurrentPageIndex is correct. 
        
                                if (Session["itemsCount"] != null) 
        
                                { 
        
                                    int itemsCount = (int)Session["itemsCount"]; 
        
                                    int pageCount = (int)Math.Ceiling(((double)itemsCount / rows)); 
        
                                    if (RadGrid1.MasterTableView.CurrentPageIndex > pageCount - 1) 
        
                                    { 
        
                                        RadGrid1.MasterTableView.CurrentPageIndex = pageCount - 1; 
        
                                    } 
        
                                } 
        
                                RadGrid1.Rebind(); 
        
                            } 
        
                        } 
        
                    } 
        
                } 
        
            }

    
            <asp:Content ID="Content3" runat="server" ContentPlaceHolderID="ContentPlaceHolderRuleNav"> 
        
                <div class="qsfexHeaderMain">Test Group Filter</div> 
        
                <asp:RadioButtonList ID="rdoSelectUser" runat="server" AutoPostBack="True"  
        
                    Font-Names="Verdana"   
        
                    style="margin-right: 61px"  
        
                    onselectedindexchanged="rdoSelectUser_SelectedIndexChanged"> 
        
                    <asp:ListItem Selected="True" Value="0">All</asp:ListItem> 
        
                    <asp:ListItem Value="1">Active</asp:ListItem> 
        
                    <asp:ListItem Value="2">Disabled</asp:ListItem> 
        
                    <asp:ListItem Value="3">Last 3 Months</asp:ListItem>          
        
                    <asp:ListItem Value="4">Locked Out</asp:ListItem> 
        
            </asp:RadioButtonList>                            
        
            </asp:Content> 
        
            <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolderMain" Runat="Server"> 
        
                    <asp:Panel ID="Panel" runat="server"> 
        
                        <telerik:RadGrid ID="RadGrid1" runat="server" PageSize="10" 
        
                             AllowPaging="True" GridLines="None" AutoGenerateColumns="False"  
        
                             AllowFilteringByColumn="true" EnableLinqExpressions="false" 
        
                             OnNeedDataSource="RadGrid1_OnNeedDataSource"> 
        
                            <PagerStyle Mode="NextPrevNumericAndAdvanced"> 
        
                            </PagerStyle> 
        
                            <MasterTableView DataKeyNames="UserID" AllowMultiColumnSorting="True"> 
        
                                <GroupByExpressions> 
        
                                </GroupByExpressions> 
        
                                <Columns> 
        
                                    <telerik:GridBoundColumn DataField="UserID" Visible="false" SortExpression="UserID"> 
        
                                    </telerik:GridBoundColumn> 
        
                                    <telerik:GridBoundColumn DataField="LastName" SortExpression="LastName" HeaderText="Last Name"> 
        
                                    </telerik:GridBoundColumn> 
        
                                    <telerik:GridBoundColumn DataField="FirstName" SortExpression="FirstName" HeaderText="First Name"> 
        
                                    </telerik:GridBoundColumn> 
        
                                    <telerik:GridBoundColumn DataField="Username" SortExpression="Username" HeaderText="User ID"> 
        
                                    </telerik:GridBoundColumn> 
        
                                    <telerik:GridBoundColumn DataField="Email" SortExpression="Email" HeaderText="Email"> 
        
                                    </telerik:GridBoundColumn> 
        
                                    <telerik:GridBoundColumn DataField="Status" SortExpression="Status" HeaderText="Status"> 
        
                                    </telerik:GridBoundColumn> 
        
                                </Columns> 
        
                            </MasterTableView> 
        
                            <ClientSettings > 
        
                                <Selecting AllowRowSelect="True"></Selecting> 
        
                                <Scrolling AllowScroll="True"></Scrolling> 
        
                                <ClientMessages /> 
        
                            </ClientSettings> 
        
                        </telerik:RadGrid> 
        
                    </asp:Panel> 
        
            </asp:Content>

Grid

answered on 18 Aug 2010

2 answers

205 views

[Solved] ListBoxItem checkbox not checked in edit mode

I have a RadListBox in an editable FormTemmplate inside a RadGrid. The ListBoxItems have checkboxes, and their data values are populated with a SQL DataSourceId. When I select a grid row to edit, and the form populates, the ListBoxItem that matches to the data record is highlighted (selected), but its checkbox is not checked as it should be. I've looked for a property to control this without luck. How can I bind the ListBox such that it will check 'on' the selected ListBoxItem(s)?

This is the html:

<telerik:RadGrid ID="rgTodos" runat="server" EnableAJAX="True" AllowAutomaticUpdates="False" OnItemCommand="rgTodos_ItemCommand">

<MasterTableView CommandItemDisplay="Bottom">

<EditFormSettings EditFormType="Template">

<FormTemplate>

<table style="width: 80%" align="center">

<telerik:RadListBox ID="listWho" runat="server" DataSourceID="dsTodoWho"

DataTextField="wholist" DataValueField="who" Height="100px" Width="169px"

Skin="Vista" CheckBoxes="true" SelectedValue='<%# Bind("who") %>'

SelectionMode="Multiple">

</telerik:RadListBox>

Thanks, Dan

Input

answered on 18 Aug 2010

1 answer

236 views

ASP.NET Ajax client-side framework failed to load

Hi,

Our application is hosted on IIS7 64-bit, It is working fine on IIS6 but from IIS7 we are facing some issues:

When trying to execute a code which has radconfirm we are getting following errors:

ASP.NET Ajax client-side framework failed to load
'Sys' is undefined
“Telerik.Web.UI” is undefined

I tried with all steps mentioned in http://www.telerik.com/help/aspnet-ajax/troubleshooting.html but of no use.

Please help.

Regards,
Sudhanva

Ajax

answered on 18 Aug 2010