Unable to cast object of type 'Telerik.Web.UI.RadGrid' to type 'Telerik.Web.UI.GridTableView'. When i use the filterbycolumn

[Ilber]

Hi you all,

I got this error whe i filter on my rad grid. Before the opening of this thread i read all the other threads that talk about this error but nothing helps me to resolve the problem.

This is my grid:

'<telerik:RadGrid  AllowPaging="True" ID="dgLista" runat="server" Skin="Office2007" OnNeedDataSource="dgLista_NeedDataSource"

                         Font-Size="X-Small" AllowFilteringByColumn="True" AllowSorting="True" PageSize="18" PagerStyle-Mode="NextPrevAndNumeric" 

                         AutoGenerateColumns="False"

                         GridLines="None" OnItemCreated="dgLista_ItemCreated" 

                            >                           

                            <MasterTableView DataKeyNames="ID">

                               

                            </MasterTableView>

                            

                            <ItemStyle Font-Size="X-Small"  BackColor="AliceBlue" />

                            <PagerStyle Font-Size="Smaller" />

                            <HeaderStyle Font-Size="Smaller" />

                            <AlternatingItemStyle Font-Size="X-Small" BackColor="Lavender" BorderColor="Transparent" />

                            <FilterMenu EnableTheming="True">

                                <CollapseAnimation Type="OutQuint" Duration="200">

                                </CollapseAnimation>

                            </FilterMenu>

                        </telerik:RadGrid>'

and this is the function the populate the rid columns:

'private void CreaColonne(Hashtable TabellaConRicerca)

        {

            // BoundField ColonnaConteggio;

            Metodi.StrutturaRicerca Record = new Metodi.StrutturaRicerca();

            GridBoundColumn myColumn;

            string sCampiSelect = string.Empty;

            #region Sezione per il pulsante visualizza

            GridButtonColumn imgCol = new GridButtonColumn();

            //dgLista.MasterTableView.Columns.Add(imgCol);

            dgLista.Columns.Add(imgCol);

            imgCol.HeaderText = "VIEW";

            imgCol.ImageUrl = "~/Images/WebView.gif";

            imgCol.UniqueName = "View";

            imgCol.Resizable = false;

            imgCol.Reorderable = false;

            imgCol.ButtonType = GridButtonColumnType.ImageButton;

            

            

            

            #endregion

            #region Sezione per colonne IMG,SPO,FAS

            //Controllo se nelle impostazioni sono attivi 

            if (Metodi.RicavaValoreDiDefault(Cost_Impostazioni.VEDINDOC, _iIdUtente, int.Parse(Metodi.Decripta(Session[Cost_Sessioni.DATABASE_ID].ToString())), Metodi.Decripta(Session[Cost_Sessioni.CONNESSIONE_DA_MASTER].ToString())) == Cost_Impostazioni.IMPOSTAZIONE_ATTIVA)

            {

                //ILIB_Aggiunto controllo Telerik

                myColumn = new GridBoundColumn();

                //dgLista.MasterTableView.Columns.Add(myColumn);

                dgLista.Columns.Add(myColumn);

                myColumn.DataField = "IMG";

                myColumn.SortExpression = "IMG_NUMBER";

                myColumn.HeaderText = "IMG";

                myColumn.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                myColumn.ItemStyle.Width = Unit.Pixel(40);

                myColumn.AllowFiltering = false;

                myColumn.Reorderable = true;

            }

            if (Metodi.RicavaValoreDiDefault(Cost_Impostazioni.VEDINSPOOL, _iIdUtente, int.Parse(Metodi.Decripta(Session[Cost_Sessioni.DATABASE_ID].ToString())), Metodi.Decripta(Session[Cost_Sessioni.CONNESSIONE_DA_MASTER].ToString())) == Cost_Impostazioni.IMPOSTAZIONE_ATTIVA)

            {

                //ILIB_ Aggiunto controllo Telerik

                myColumn = new GridBoundColumn();

                //dgLista.MasterTableView.Columns.Add(myColumn);

                dgLista.Columns.Add(myColumn);

                myColumn.DataField = "SPO";

                myColumn.SortExpression = "SPO_NUMBER";

                myColumn.HeaderText = "SPO";

                myColumn.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                myColumn.ItemStyle.Width = Unit.Pixel(40);

                myColumn.AllowFiltering = false;

                myColumn.Reorderable = true;

            }

            if (Metodi.RicavaValoreDiDefault(Cost_Impostazioni.VEDINFASCICOLO, _iIdUtente, int.Parse(Metodi.Decripta(Session[Cost_Sessioni.DATABASE_ID].ToString())), Metodi.Decripta(Session[Cost_Sessioni.CONNESSIONE_DA_MASTER].ToString())) == Cost_Impostazioni.IMPOSTAZIONE_ATTIVA)

            {

                //ILIB_Aggiunto controllo Telerik

                myColumn = new GridBoundColumn();

                //dgLista.MasterTableView.Columns.Add(myColumn);

                dgLista.Columns.Add(myColumn);

                myColumn.DataField = "FAS";

                myColumn.SortExpression = "FAS_NUMBER";

                myColumn.HeaderText = "FAS";

                myColumn.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                myColumn.ItemStyle.Width = Unit.Pixel(40);

                myColumn.AllowFiltering = false;

                myColumn.Reorderable = true;

            }

            #endregion

            //int iColonne = Convert.ToInt32(Request.QueryString.Get("NCampi"));

            for (int i = 0; i <= _iColonna; i++)

            {

                foreach (DictionaryEntry Elemento in TabellaConRicerca)

                {

                    Record = (Metodi.StrutturaRicerca)Elemento.Value;

                    Record.TabellaLookup = Record.TabellaLookup + string.Empty;

                    if (Record.Ordinamento == i)

                    {

                        switch (Record.Tipo)

                        {

                            case Cost_Common.TIPO_LCK_TESTO:

                            case Cost_Common.TIPO_LCK_NUMERICO:

                                #region Colonne di Lookup

                                //BoundField ColonnaLookup;

                                GridBoundColumn LookUpCol;

                                //Estraggo il codice del lookup soltanto se è attiva la voce nella tabella impostazioni

                                if (Metodi.RicavaValoreDiDefault(Cost_Impostazioni.VEDICODELOOKUP, _iIdUtente, int.Parse(Metodi.Decripta(Session[Cost_Sessioni.DATABASE_ID].ToString())), Metodi.Decripta(Session[Cost_Sessioni.CONNESSIONE_DA_MASTER].ToString())) == Cost_Impostazioni.IMPOSTAZIONE_ATTIVA)

                                {

                                    

                                    LookUpCol = new GridBoundColumn();

                                    //dgLista.MasterTableView.Columns.Add(LookUpCol);

                                    dgLista.Columns.Add(LookUpCol);

                                    LookUpCol.DataField = Record.NomeCampo;

                                    LookUpCol.SortExpression = Record.NomeCampo;

                                    LookUpCol.HeaderText = Record.NomeCampo;

                                    LookUpCol.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                                    LookUpCol.ItemStyle.Width = Unit.Pixel(100);

                                    LookUpCol.Resizable = true;

                                    LookUpCol.AllowFiltering = true;

                                    LookUpCol.Reorderable = true;

                                }

                                //ILIB_Aggiunto Controllo Telerik

                                LookUpCol = new GridBoundColumn();

                                //dgLista.MasterTableView.Columns.Add(LookUpCol);

                                dgLista.Columns.Add(LookUpCol);

                                LookUpCol.DataField = Record.DescrLookup;

                                LookUpCol.SortExpression = Record.DescrLookup;

                                LookUpCol.HeaderText = Record.DescrLookup;

                                LookUpCol.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                                LookUpCol.ItemStyle.Width = Unit.Pixel(100);

                                LookUpCol.Resizable = true;

                                LookUpCol.AllowFiltering = true;

                                LookUpCol.Reorderable = true;

                                break;

                                #endregion

                            case Cost_Common.TIPO_DATA:

                                #region Colonne di Tipo Data

                                GridBoundColumn DataCol = new GridBoundColumn();

                                //dgLista.MasterTableView.Columns.Add(DataCol);

                                dgLista.Columns.Add(DataCol);

                                DataCol.DataField = "DV_" + Record.NomeCampo;

                                DataCol.SortExpression = "DO_" + Record.NomeCampo;

                                DataCol.HeaderText = Record.NomeCampo;

                                DataCol.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                                DataCol.ItemStyle.Width = Unit.Pixel(100);

                                DataCol.Resizable = true;

                                DataCol.AllowFiltering = true;

                                DataCol.Reorderable = true;

                                

                                break;

                                #endregion

                            default:

                                #region Colonna Generica

                                GridBoundColumn GenericCol = new GridBoundColumn();

                                //dgLista.MasterTableView.Columns.Add(GenericCol);

                                dgLista.Columns.Add(GenericCol);

                                GenericCol.DataField = Record.NomeCampo;

                                GenericCol.SortExpression = Record.NomeCampo;

                                GenericCol.HeaderText = Record.NomeCampo;

                                GenericCol.HeaderStyle.HorizontalAlign = HorizontalAlign.Left;

                                GenericCol.ItemStyle.Width = Unit.Pixel(100);

                                GenericCol.Resizable = true;

                                GenericCol.AllowFiltering = true;

                                GenericCol.ShowFilterIcon = true;

                                GenericCol.ShowSortIcon = true;

                                GenericCol.Reorderable = true;

                                break;

                                #endregion

                        }

                        //Forzo l'uscita appena trovo l'ordinamento corretto 

                        break;

                    }

                }

            }

        }'

i have the xhtmlConformance mode set to Transitional. 

Can you halp me please?

Thanks in advance,

Ilber

[Ilber]

Can anyblody help me please!!

[Rosen]

Hi,

Indeed such problem may appear if xhtmlConformance is set to Legacy. Can you please check if removing the attribute at all will address this and check if there is not nested webconfigs with xhtmlConformanceset to Legacy . You may refer to this blog post by ScottGu for more information.

All the best,
Rosen
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Ilber]

Hi Rosen ,

thank you for your response.

My xhtmlConformanceset is set to Transitional. I try removing it but nothing changes.... I try all the things that i read on this form but nothing of this helps me.

Another suggestion?


Thanks a lot,

Ilber

[Rosen]

Hello,

Can you please provide your webconfig (please use the Format Code Block button on the Editor to paste the code). Also can you please verify that you are using only single webconfig and there is no others nested into the website's structure.

All the best,
Rosen
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Ilber]

<?xml version="1.0"?>
<configuration>
  <configSections>
    <sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
      <sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
        <section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />
        <sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
          <section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="Everywhere" />
          <section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />
          <section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" requirePermission="false" allowDefinition="MachineToApplication" />
        </sectionGroup>
      </sectionGroup>
    </sectionGroup>
  </configSections>
  <appSettings>

  </appSettings>
  <connectionStrings>

  </connectionStrings>
  <system.web>
    <pages>
      <controls>
        <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </controls>
    </pages>
    <!--
          Set compilation debug="true" to insert debugging
          symbols into the compiled page. Because this
          affects performance, set this value to true only
          during development.
    -->
    <compilation debug="true">
      <assemblies>
        <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
        <add assembly="System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="Microsoft.Web.UI.WebControls, Version=1.0.2.226, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
        <add assembly="System.Web, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Design, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System.Drawing, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
        <add assembly="System.Xml, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Windows.Forms, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
        <add assembly="System.Drawing.Design, Version=2.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />

      </assemblies>
    </compilation>
    <httpHandlers>
      <remove verb="*" path="*.asmx" />
      <add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" validate="false" />
      <add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
    </httpHandlers>
    <httpModules>
      <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </httpModules>
    <!--  CUSTOM ERROR MESSAGES
          Set customError mode values to control the display of user-friendly
          error messages to users instead of error details (including a stack trace):

          "On" Always display custom (friendly) messages
          "Off" Always display detailed ASP.NET error information.
          "RemoteOnly" Display custom (friendly) messages only to users not running
          on the local Web server. This setting is recommended for security purposes, so
          that you do not display application detail information to remote clients.
    -->
    <customErrors mode="RemoteOnly" defaultRedirect="edserror.aspx" />
    <!--  AUTHENTICATION
          This section sets the authentication policies of the application. Possible modes are "Windows", "Forms",
          "Passport" and "None"
    -->
    <authentication mode="Windows" />
    <!--  APPLICATION-LEVEL TRACE LOGGING
          Application-level tracing enables trace log output for every page within an application.
          Set trace enabled="true" to enable application trace logging.  If pageOutput="true", the
          trace information will be displayed at the bottom of each page.  Otherwise, you can view the
          application trace log by browsing the "trace.axd" page from your web application
          root.
    -->
    <trace enabled="false" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true" />
    <!--  SESSION STATE SETTINGS
          By default ASP .NET uses cookies to identify which requests belong to a particular session.
          If cookies are not available, a session can be tracked by adding a session identifier to the URL.
          To disable cookies, set sessionState cookieless="true".
    -->
    <sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=(local);user id=;password=" cookieless="false" timeout="20" />
    <!--  GLOBALIZATION
          This section sets the globalization settings of the application.
    -->
    <globalization requestEncoding="utf-8" responseEncoding="utf-8" />
    <browserCaps>
      <case match="^Mozilla/5\.0 \([^)]*\) (Gecko/[-\d]+)?Netscape[6|7]/(?'version'(?'major'\d+)(?'minor'\.\d+)(?'letters'\w*)).*">
                tagwriter=System.Web.UI.HtmlTextWriter
                browser=Netscape
                version=${version}
                majorversion=${major}
                minorversion=${minor}
                frames=true
                tables=true
                cookies=true
                javascript=true
                javaapplets=true
                ecmascriptversion=1.5
                w3cdomversion=1.0
                css1=true
                css2=true
                xml=true
            </case>
      <case match="^Mozilla/(?'version'(?'major'\d+)(?'minor'\.\d+)(?'letters'\w*)).*">
        <case match="^[5-9]\." with="${version}">
                    tagwriter=System.Web.UI.HtmlTextWriter
                </case>
      </case>
      <case match="Opera[ /](?'version'(?'major'\d+)(?'minor'\.\d+)(?'letters'\w*))">
        <filter match="[4-9]" with="${major}">
          <filter match="[5-9]" with="${major}">
                        tagwriter=System.Web.UI.HtmlTextWriter
                    </filter>
        </filter>
      </case>
    </browserCaps>
    <xhtmlConformance mode="Transitional" />
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules>
      <add name="ScriptModule" preCondition="integratedMode" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
    </modules>
    <handlers>
      <remove name="WebServiceHandlerFactory-Integrated" />
      <add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      <add name="Telerik_Web_UI_WebResource_axd" verb="*" preCondition="integratedMode" path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" />
    </handlers>
  </system.webServer>
</configuration>

I have only one config in my WebApplication... I have to make this thing works untill Monday, so please an you help me as soon as possible. Thanks a lot Rosen.

[Rosen]

Hi Ilber,

Unfortunately I'm unable to recreate the behavior locally using the provided information. Therefore please consider sending us a small sample project in which the behavior can be observed.

Sincerely yours,
Rosen
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Ilber]

Hi Rosen,

I think maybe is something that i have installed on my PC.  Is there any conflict with other Software or Driver?? 

thanks 

[Rosen]

Hello,

I'm afraid that we are not aware of such incompatibility issue. Are you getting the same behavior when running different projects on the same machine? Please consider sending us a small runnable project as this way we will be able to investigate the issue locally and provide you will more detailed answer.

Regards,
Rosen
the Telerik team

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[Ilber]

Hi Rosen,

I found what is the problem but i dont know how to resolve it. My page that contains the radgrid inherit from aa base class page Instead of inheriting from  System.Web.UI.Page. My base class page inherit from  System.Web.UI.Page.

If i inherti directly from  System.Web.UI.Page i dont have any problem but when i inherit from my base class page a get the error

Unable to cast object of type 'Telerik.Web.UI.RadGrid' to type 'Telerik.Web.UI.GridTableView' ...

did know of a way to solve this problem? please help me...

Thanks

[Rosen]

Hi Ilber,

Maybe you can share your base page code then?

Greetings,
Rosen
the Telerik team

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[Ilber]

hi Rosen,

i can't do it beacause there are a confidential data....

I don't now why of this issue? Why the grid try to cast in GridTableView??

I have to write somthing in my base page?!?!

Thanks...

[Rosen]

Hi ,

I'm afraid that there is not much that I can do without the code as it seems that there is where the problem is rooted. I can only suggest you that you verify that you are not modifying the id of the page/control or for example setting IdSeparator property manually.

Best wishes,
Rosen
the Telerik team

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Watch a video on how to optimize your support resource searches and check out more tips on the blogs.

[Ilber]

Hi Rosen,

You guessed the problem. I override the property IdSeparator and this was causing the problem.

I sincerely thank you and I wish you all good.

Bye