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1 answer
169 views

Hello, I have an old project I am upgrading to the most recent Telerik Release and I'm running into issues while redirecting from a login page.

 

The code is pretty straight forwards,. the Default.aspx page looks something like this:

protected void Page_Load(object sender, EventArgs e)
        {           
            if (Context.Session != null)
            {
                if (Session.IsNewSession)
                {
                    string szCookieHeader = Request.Headers["Cookie"];
                    if ((null != szCookieHeader) && (szCookieHeader.IndexOf("ASP.NET_SessionId") >= 0))
                    {
                        Response.Redirect("/Login.aspx");
                    }
                }
            }
             
            if (!Convert.ToBoolean(Session["UserIsAdmin"]))
            {
                //Acquire appropriate redirect path from database
                 
                Response.Redirect(redirectPath);
 
            }
            else
            {
                Response.Redirect("/Modules/Admin/UserSetup.aspx");
            }           
        }

 

and the login page has a username and password field with a log in button that looks like so:

 

protected void bLogin_Click(object sender, EventArgs e)
        {
            try
            {
                if (allowLogin)
                {
                    UserClass userAuthenticationClass = new UserClass(eUsername.Text, ePassword.Text);
                    if (userAuthenticationClass.IsValidUser)
                    {
                        string s = FormsAuthentication.DefaultUrl;
                        Session["User"] = userAuthenticationClass;
                        Session["UserID"] = userAuthenticationClass.UserID;
                        Session["Username"] = userAuthenticationClass.Username;
                        Session["UserMasterID"] = userAuthenticationClass.UserMasterID;
                        Session["UserIsAdmin"] = (eUsername.Text.ToUpper() == "ADMINISTRATOR") ? "True" : "False"
                        Session["UserType"] = userAuthenticationClass.UserType;
                        Session["EmailAddress"] = userAuthenticationClass.EmailAddress;
                        Session["SessionID"] = Guid.NewGuid().ToString();
 
                        Session.Timeout = 1440;
 
                        AppCode.SessionStatistics.InsertStatistic(Session["SessionID"].ToString(), Session["UserID"].ToString());
 
                        RadAjaxPanel1.Redirect("/Default.aspx");
                        //FormsAuthentication.RedirectFromLoginPage(eUsername.Text, false);
                        //Response.Redirect("/Default.aspx", false);
                        //Server.Transfer("/Default.aspx", false);
                        //Server.Execute("/Default.aspx", true);
                         
                    }
                    else
                    {
                        LabelMessage.Text = "Could Not Authenticate User";
                    }
                }
            }
            catch (Exception ex)
            {
                LabelMessage.Text = ex.Message;
            }           
        }

 

So Here's where it gets odd. When debugging from Visual Studio, this works correctly. when running on my local web server (set up on my development machine) this also works correctly. but when deployed to a test server, the login button just does not redirect. (it clicks, authenticates the user, then returns to the login page)

 

I was wondering if it's possible that there is something happening that would cause the Session variables to be lost when using RadAjaxPanel.Redirect?

 

Keep in mind, this method works perfectly fine on the development environment. Is there anything I need to install/set up on the test environment for this to work?

Patrick | Technical Support Engineer, Senior
Telerik team
 answered on 23 Nov 2016
1 answer
139 views

i'm cascading dropdownbox (radcombobox) with clientdatasource but i'm a having challenges when changing the main combobox in hopes of having oncustomparameter to fire again.

ComboBox

<telerik:RadComboBox runat="server" EmptyMessage="Function" ID="RcbFun" Width="80px" OnClientLoad="Rcb_OnClientLoad" DataTextField="Code" DataValueField="Functions" AppendDataBoundItems="True" ClientDataSourceID="CdsFunc" ItemsPerRequest="15" Filter="Contains"  EnableLoadOnDemand="true" ShowMoreResultsBox="true" EnableVirtualScrolling="true" OnClientSelectedIndexChanged="Rcb_OnClientSelectedIndexChanged"></telerik:RadComboBox>
 
<telerik:RadComboBox runat="server" EmptyMessage="Sub-Function" ID="RcbSubF" Width="80px" OnClientLoad="Rcb_OnClientLoad"  DataTextField="Code" DataValueField="SubFunction" AppendDataBoundItems="True" ClientDataSourceID="CdsSubF" ItemsPerRequest="15" Filter="Contains" HighlightTemplatedItems="true" OnClientSelectedIndexChanged="Rcb_OnClientSelectedIndexChanged" EnableLoadOnDemand="true"></telerik:RadComboBox>

 

 

RadClientDataSource

<telerik:RadClientDataSource ID="CdsFunc" runat="server">
          <DataSource>
              <WebServiceDataSourceSettings BaseUrl="LibraryService.svc/">
                  <Select Url="GetFunctions" DataType="JSON" RequestType="Get" ContentType="application/json; charset=utf-8" />
              </WebServiceDataSourceSettings>
          </DataSource>
          <Schema DataName="d">
          </Schema>
      </telerik:RadClientDataSource>
      <telerik:RadClientDataSource ID="CdsSubF" runat="server">
          <ClientEvents OnCustomParameter="ParamMap" />
          <DataSource>
              <WebServiceDataSourceSettings BaseUrl="LibraryService.svc/">
                  <Select Url="RcbGetSubFunctions" DataType="JSON" RequestType="Get" ContentType="application/json; charset=utf-8" />
              </WebServiceDataSourceSettings>
          </DataSource>
          <Schema DataName="d"></Schema>
      </telerik:RadClientDataSource>

 

OnCustomParameter Method

1.function ParamMap(sender, args) {
2.    if (RcbFun.get_value() != "") {
3.        if (args.get_type() == "read" && args.get_data()) {
4.              args.set_parameterFormat({ paramFunction: RcbFun.get_value() });
5.        }
6.   }
7.}

 

Loading items into RcbSubF after selecting the a value RcbFun for the first time is not a problem. The issues lies in selecting another value in RcbFun. The OnCustomParameter event "ParamMap" will not fire again. Any suggestion? 

Please be advised that these controls are in side a RadPanelBar.

Ivan Danchev
Telerik team
 answered on 23 Nov 2016
3 answers
90 views

I am currently hiding several gridbound columns on load by setting Display="False".

User can display/hide columns using the column header context menu.

All works fine accept that when a user maximizes the browser window all the hidden columns are displayed. 

It doesn't happen every time, though most times.

Tested with same issue on Edge and Firefox.

Any help would be greatly appreciated.

 

Konstantin Dikov
Telerik team
 answered on 23 Nov 2016
5 answers
234 views

I have a telerik RadGrid. I have applied Manual CRUD operations in it. I am using In-Place editing mode. The problem is, when I am trying to Insert or Update the records, i am getting null values by this method 

e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);

Same thing happening in both RadGrid_UpdateCommand and â€‹RadGrid_​InsertCommand

Following is my ASPX code

<telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
                    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
                    <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server">
                        <AjaxSettings>
                            <telerik:AjaxSetting AjaxControlID="rGrid">
                                <UpdatedControls>
                                    <telerik:AjaxUpdatedControl ControlID="rGrid" LoadingPanelID="RadAjaxLoadingPanel1" />
                                </UpdatedControls>
                            </telerik:AjaxSetting>
                        </AjaxSettings>
                    </telerik:RadAjaxManager>
                    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1" />
                    <telerik:RadFormDecorator ID="RadFormDecorator1" runat="server" DecorationZoneID="demo" EnableRoundedCorners="false" DecoratedControls="All" />
 
                    <telerik:RadGrid ID="rGrid" runat="server" AllowPaging="True" PageSize="10"
                    AllowSorting="True" AutoGenerateColumns="false"
                    AllowFilteringByColumn="True" CellSpacing="0" GridLines="None"
                    OnNeedDataSource="rGrid_NeedDataSource" OnItemCreated="rGrid_ItemCreated"
                    OnPreRender="rGrid_PreRender" OnInsertCommand="rGrid_InsertCommand"
                    OnUpdateCommand="rGrid_UpdateCommand" ondeletecommand="rGrid_DeleteCommand">
                    <PagerStyle Mode="NextPrevAndNumeric" />
                    <GroupingSettings CaseSensitive="false" />
                    <MasterTableView DataKeyNames="ID" EditMode="InPlace" CommandItemDisplay="Top" InsertItemPageIndexAction="ShowItemOnCurrentPage">
                        <Columns>
                            <telerik:GridEditCommandColumn ButtonType="ImageButton" UniqueName="EditCommandColumn" HeaderText="Edit">
                            </telerik:GridEditCommandColumn>
                            <telerik:GridBoundColumn DataField="ID" UniqueName="ID" HeaderText="ID" ColumnEditorID="GridTextBoxEditor1" ReadOnly="true">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="Name" UniqueName="Name" HeaderText="Name" ColumnEditorID="GridTextBoxEditor1">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="ContactPerson" UniqueName="ContactPerson" HeaderText="Contact Person" ColumnEditorID="GridTextBoxEditor2">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="Address" UniqueName="Address" HeaderText="Address" ColumnEditorID="GridTextBoxEditor3">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="Country" UniqueName="Country" HeaderText="Country" ColumnEditorID="GridTextBoxEditor4">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="City" UniqueName="City" HeaderText="City" ColumnEditorID="GridTextBoxEditor5">
                            </telerik:GridBoundColumn
                            <telerik:GridBoundColumn DataField="Phone" UniqueName="Phone" HeaderText="Phone" ColumnEditorID="GridTextBoxEditor6">
                            </telerik:GridBoundColumn>
                            <telerik:GridBoundColumn DataField="Email" UniqueName="Email" HeaderText="Email" ColumnEditorID="GridTextBoxEditor7">
                            </telerik:GridBoundColumn>
                            <telerik:GridClientDeleteColumn HeaderText="Delete" ButtonType="ImageButton">
                            <%--<telerik:GridButtonColumn ConfirmText="Delete this product?" ConfirmDialogType="RadWindow"
                            ConfirmTitle="Delete" ButtonType="ImageButton" CommandName="Delete" />--%>
                            <HeaderStyle Width="70px" />
                        </telerik:GridClientDeleteColumn>
                        </Columns>
                        <EditFormSettings>
                            <EditColumn ButtonType="ImageButton" />
                        </EditFormSettings>
                    </MasterTableView>
                <ClientSettings>
                    <ClientEvents OnUserAction="UserAction" />
                </ClientSettings>
                </telerik:RadGrid>

Following is Code behind

public partial class Suppliers : System.Web.UI.Page
   {
       protected void Page_Load(object sender, EventArgs e)
       {
           if (!IsPostBack)
           {
                
           }
       }
 
       protected void rGrid_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
       {
           Code.BLL.Suppliers objSuppliers = new Code.BLL.Suppliers();
           List<Code.BLL.Suppliers> lstSupplier = objSuppliers.Load();
 
           rGrid.DataSource = lstSupplier;
       }
 
       protected void rGrid_ItemCreated(object sender, Telerik.Web.UI.GridItemEventArgs e)
       {
 
       }​
 
       protected void rGrid_PreRender(object sender, EventArgs e)
       {
       }
 
       protected void rGrid_InsertCommand(object sender, GridCommandEventArgs e)
       {
           GridEditableItem editedItem = e.Item as GridEditableItem;
 
           Hashtable newValues = new Hashtable();
           e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);
           //editedItem.ExtractValues(newValues); I have tried both methods, but got null values from both
       }
 
       protected void rGrid_UpdateCommand(object sender, GridCommandEventArgs e)
       {
           GridEditableItem editedItem = e.Item as GridEditableItem;
 
           //Prepare new dictionary object
           Hashtable newValues = new Hashtable();
           e.Item.OwnerTableView.ExtractValuesFromItem(newValues, editedItem);
           editedItem.ExtractValues(newValues);I have tried both methods, but got null values from both
 
       }
 
       protected void rGrid_DeleteCommand(object sender, GridCommandEventArgs e)
       {
 
       }
   }

Dimo
Telerik team
 answered on 23 Nov 2016
3 answers
318 views

Hi,

I have a rad button in a rad window, with both client click and on server event. the page in which the rad window is there has a radajaxmanager and a rad grid. The server event handles the export of radgrid data to an excel, this is an ajax request. I do not want to use the gridexporting. The following code exports the file:

 using (ClosedXML.Excel.XLWorkbook wb = new ClosedXML.Excel.XLWorkbook())
        {
            var worksheet = wb.Worksheets.Add(datatable, fileName);
            worksheet.Tables.First().ShowAutoFilter = false;
            worksheet.Tables.First().Theme = ClosedXML.Excel.XLTableTheme.None;

httpContext.Response.Clear();
            httpContext.Response.Buffer = true;
            httpContext.Response.Charset = Encoding.UTF8.WebName;
            httpContext.Response.AddHeader("content-disposition", string.Format("{0}{1}", "attachment;filename=", fileName));
            httpContext.Response.ContentType = contentType;

using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream())

            {
                workbook.SaveAs(memoryStream);
                memoryStream.WriteTo(httpContext.Response.OutputStream);
                httpContext.Response.Flush();
                httpContext.Response.End();
            }

}

After exporting the file, the ClientEvents-OnResponseEnd of radajaxmanager is not firing in Safari browser on MAC, I want this event to be fired to hide an image. It is firing in IE and Chrome on both MAC and windows but not in Safari. Please suggest.

Thanks in advance.

Saravana

 

Konstantin Dikov
Telerik team
 answered on 23 Nov 2016
4 answers
348 views

I have an asp.net application hosted on IIS and while the site works perfectly on my local dev machine once I upload it to a web server running IIS, all the controls look wrong.

The runtime DLLs have been installed on the server also.

Not exactly sure why this is happening but I suspect it is some config issue.

See below for how it behaves.

Any idea on a fix?

 

Rumen
Telerik team
 answered on 23 Nov 2016
2 answers
169 views
When inserting an image via the Image Manager, the css for the height, width, border attributes that are chosen is properly generated.  However, for better compatibility with some email rendering clients, I also need to have these attributes exist as html image tag attributes (for example:  <img width="100" height="100" border="2" .)  When I manually add these attributes to the image tag, I find that the editor deletes the border attribute.  How can I prevent this deletion from occurring?  I have uploaded examples to show what I manually add and what the editor keeps/deletes.  Thank you.
Laurie
Top achievements
Rank 1
 answered on 22 Nov 2016
0 answers
93 views

Hello,

 

We are using Telerik windows control in our code and recently we upgraded to windows 10 anniversary version after the upgrade Telerik windows control grid is not working as expected (Grouping and drag and drop) feature, and we are able to use the same feature in other operating systems. could anybody please help me here, recently all our agents upgraded to windows 10 anniversary version so we have to find a way to fix this problem.

 

When i am researching about this issue i found some answers if we upgrade .1 Net Framework to another we have upgarde the Telerik Windows Control too, So i wanted to know same issue causing problems in our upgarde to Windows 10 just need your expertise. 

Thanks in Advance

Regards,

Mannava

mannava
Top achievements
Rank 1
 asked on 22 Nov 2016
2 answers
83 views

I am unable to exclude ajax enabled control (Button2) that resides inside panel (PanelButtons) as shown below. I tried to use the following code, I don't get any errors, but the button click is not working. I tried by using RadScriptManager's RegisterPostBackControl method. I also tried to disable AJAX via the OnRequestStart event as well as InitializeRequest event. None of them seems to work. So, is there any better solution for this scenario? Thanks.

  <asp:Content runat="server" ContentPlaceHolderID="Content1">
   <telerik:RadAjaxManagerProxy ID="RadAjaxManagerProxy1" runat="server">
   <AjaxSettings>
    <telerik:AjaxSetting AjaxControlID="RadGrid1">
     <UpdatedControls>             
      <telerik:AjaxUpdatedControl ControlID="RadWindow1" />    
      <telerik:AjaxUpdatedControl ControlID="PanelButtons" />
     </UpdatedControls>
    </telerik:AjaxSetting>
    </AjaxSettings>
 </telerik:RadAjaxManagerProxy>
  <telerik:RadGrid ID="RadGrid1" runat="server" OnNeedDataSource="RadGrid1_NeedDataSource">
    <MasterTableView>
     <Columns>                  
     </Columns>
    </MasterTableView>
    <ClientSettings EnablePostBackOnRowClick="false" >
     <Selecting AllowRowSelect="true" />
     <ClientEvents OnRowClick="openRadWindow" OnRowSelected="RadGrid1_RowSelect" />
    </ClientSettings>       
 </telerik:RadGrid>
  <telerik:RadWindow ID="RadWindow1" runat="server" >
   <ContentTemplate>
   <div>...</div>
      <asp:Panel ID="PanelButtons" runat="server">
     <telerik:RadButton ID="Button1" Text="Save" runat="server">
     <telerik:RadButton ID="Button2" Text="Save" runat="server" OnClientClicking="Button2_Click"
        OnClick="Button2_Click" AutoPostBack="false">
     <telerik:RadButton ID="Button3" Text="Save" runat="server">
     <telerik:RadButton ID="Button4" Text="Save" runat="server">
    </asp:Panel>
   </ContentTemplate>
 </telerik:RadWindow>
</asp:Content>
 <telerik:RadCodeBlock runat="server">       
 <script type="text/javascript">
  
 function pageLoad()
 {
  win = $find("<%= RadWindow1.ClientID %>");
 }
 function openRadWindow() {
  win.show(); 
 }
 
 function Button2_Click()
 {
  __doPostBack("<%= Button2.ClientID %>", "");
 }
 </script>
</telerik:RadCodeBlock>

Server side:

protected void Page_Load(object sender, EventArgs e)
{

   var mngr = RadScriptManager.GetCurrent(this.Page);   

     mngr.RegisterPostBackControl(Button2);

}

 

kevin
Top achievements
Rank 1
 answered on 22 Nov 2016
1 answer
97 views

Hi,

 

How can I have the dependent drop down n Grid filter, for example a grid contains Country , City , Train stations.and User select country,the filter is applied on grid but the city should also need to rebind with the country filter value.

This is my first time to use Telerik controls.

 

Regards,

 

 

 

Pavlina
Telerik team
 answered on 22 Nov 2016
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