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The call is ambiguous between the folllowing methods or properties:

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Persistence Framework

This is a migrated thread and some comments may be shown as answers.

Gyan asked on 31 Dec 2013, 05:02 PM

Error.png

Hi

   I have a application in VS2010 in which I am using RadPersistenceManager but getting error when trying to save state of RadGrid. I have attached Error and posting the code. Please help me....

here is the asp code

<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="WebForm1.aspx.vb" Inherits="WebApplication3.WebForm1" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<!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 runat="server">
    <title></title>
    <style type="text/css">
        .qsf-demo-canvas
        {
            background: url(bg_img.jpg) no-repeat;
            height: 441px;
            width: 476px;
        }
        .demo-canvas-inner
        {
            height: 100%;
            margin-left: -11px;
            padding-top: 26px;
        }

        .controls-container
        {
            clear: both;
            padding-top: 40px;
            zoom: 1;
        }
        .controls-container:after
        {
            content: "";
            clear: both;
            display: block;
        }
        .controls-container .rlbItem
        {
            height: 20px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
        <telerik:RadPersistenceManager runat="server" ID="RadPersistenceManager1">
            <PersistenceSettings>
                <telerik:PersistenceSetting ControlID="rgdemo" />
            </PersistenceSettings>
        </telerik:RadPersistenceManager>
        <asp:Label ID="Label1" runat="server" />
        <br />
        <div style="margin-left: 40px" class="qsf-ib">
            <telerik:RadButton ID="SaveButton" runat="server" Text="Save state" OnClick="SaveButton_Click"
                Skin="Office2007" />
            <telerik:RadButton ID="ResetButton" runat="server" Text="Reset state" OnClick="ResetButton_Click"
                Skin="Office2007" />
            <telerik:RadButton ID="LoadButton" runat="server" Text="Load state" OnClick="LoadButton_Click"
                Enabled="false" Skin="Office2007" />
        </div>
        <div>
            <telerik:RadGrid runat="server" ID="rgdemo" EnableHeaderContextMenu="true" EnableHeaderContextAggregatesMenu="true"
                Skin="Office2007" EnableHeaderContextFilterMenu="true">
            </telerik:RadGrid>
        </div>
        <asp:HiddenField runat="server" ID="SessionID" />
    </div>
    </form>
</body>
</html>
---------------------------------------------------Here is the codbehind-------------------

Imports System.IO
Imports Telerik.Web.UI

Public Class WebForm1
    Inherits System.Web.UI.Page

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

    End Sub
    Public Function GetData() As DataTable
        Dim table As New DataTable()
        table.Columns.Add("ID")
        table.Columns.Add("ParentID")
        table.Columns.Add("Value")
        table.Columns.Add("Text")

        table.Rows.Add(New [String]() {"1", Nothing, "World_Continents", "World Continents"})
        table.Rows.Add(New [String]() {"2", Nothing, "World_Oceans", "World Oceans"})

        table.Rows.Add(New [String]() {"3", "1", "Asia", "Asia"})
        table.Rows.Add(New [String]() {"4", "1", "Africa", "Africa"})
        table.Rows.Add(New [String]() {"5", "1", "Australia", "Australia"})
        table.Rows.Add(New [String]() {"6", "1", "Europe", "Europe"})
        table.Rows.Add(New [String]() {"7", "1", "North_America", "North America"})
        table.Rows.Add(New [String]() {"8", "1", "South_America", "South America"})

        table.Rows.Add(New [String]() {"9", "2", "Arctic_Ocean", "Arctic Ocean"})
        table.Rows.Add(New [String]() {"10", "2", "Atlantic_Ocean", "Atlantic Ocean"})
        table.Rows.Add(New [String]() {"11", "2", "Indian_Ocean", "Indian Ocean"})
        table.Rows.Add(New [String]() {"12", "2", "Pacific_Ocean", "Pacific Ocean"})
        table.Rows.Add(New [String]() {"13", "2", "South_Ocean", "SouthOcean"})

        Return table
    End Function

    Protected Sub SaveButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        SessionID.Value = Guid.NewGuid().ToString()
        LoadButton.Enabled = True
        RadPersistenceManager1.StorageProviderKey = SessionID.Value
        RadPersistenceManager1.SaveState()
    End Sub

    Protected Sub LoadButton_Click(ByVal sender As Object, ByVal e As EventArgs)
        If File.Exists((Server.MapPath("~/App_Data") & "\") + SessionID.Value) Then
            RadPersistenceManager1.StorageProviderKey = SessionID.Value
            RadPersistenceManager1.LoadState()
        Else
            Label1.Text = "Please save some state before load it"
        End If
    End Sub
    Protected Sub ResetButton_Click(ByVal sender As Object, ByVal e As EventArgs)

    End Sub
    Protected Sub rgdemo_NeedDataSource(ByVal Sender As Object, ByVal e As GridNeedDataSourceEventArgs) Handles rgdemo.NeedDataSource
        rgdemo.DataSource = GetData()
    End Sub

End Class

5 Answers, 1 is accepted

answered on 15 Jan 2014, 10:15 AM

1.png

2.png

3.png

Hi Daniel,

Thank you for your valuable reply.

When I am trying to save the stale of grid and click on Save button then I am getting error "There was an error generating the XML document.". I am sending you screen shots step by step.

Please find the attachment.

thank you.

answered on 20 Jan 2014, 09:08 AM

video.zip

Hello Gyan,

Thanks for the screenshots. I'm sorry I'm unable to reproduce the issue locally. Please watch the attached video and then let me know if I'm missing something.

Regards,
Daniel
Telerik

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