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Old August 11th, 2012, 11:31 AM
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Smile Store update, insert, or delete statement affected an unexpected number of rows (0).

Hello all, I got suddenly a new error, I found for it at google but solutions seems entire different approach.

My code is below.

Code:
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="false"
        AllowSorting="True" DataSourceID="EntityDataSource1">
        <Columns>
            <asp:CommandField ShowDeleteButton="True" ShowEditButton="True" ItemStyle-Width="100px" />
            <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" ItemStyle-Width="200px" />
            <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" ItemStyle-Width="300px" />
            
            <asp:TemplateField HeaderText="User Name">
                <ItemTemplate>
                    <asp:Label ID="lblUsers" runat="server" Text='<%# GetUserName(Eval("UserId")) %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                <asp:DropDownList ID="ddlUsers" runat="server" DataSourceID="SqlDataSource1" DataTextField="UserName" DataValueField="UserId"
                        SelectedValue='<%# Bind("UserId") %>'>
                </asp:DropDownList>
                </EditItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>

    <asp:EntityDataSource ID="EntityDataSource1" runat="server"
        ConnectionString="name=ASPNETDBEntities"
        DefaultContainerName="ASPNETDBEntities" EnableDelete="True"
        EnableFlattening="False" EnableInsert="True" EnableUpdate="True"
        EntitySetName="Plots">
    </asp:EntityDataSource>

    <asp:SqlDataSource ID="SqlDataSource1" runat="server"
        ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
        SelectCommand="SELECT UserId,UserName FROM [aspnet_Users]"></asp:SqlDataSource>
and code behind is

Code:
protected string GetUserName(object userid)
    {
        string userName = (string)Membership.GetUser(userid).UserName;

        return userName;
    }
But I am getting error "Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries."

I am getting this error on Edit and Delete operation only, if I add a DetailsView to insert record then it works fine. Also if I don;t use AutoGenerateColumns=False, then also it works.

Please tell me what is issue and how I resolve it???
 
Old August 13th, 2012, 02:32 AM
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Smile

Guys, problem has been solved. Imar has provided solution here





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