Question

I have a ASP.NET code, I use it to insert and view my data from a *.mdb file.
When I reload the browser reload, it insert the same old data.

    <asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" 
        DataKeyNames="user_id" DataSourceID="AccessDataSource1" Height="50px" 
        Width="125px" DefaultMode="Insert">
        <Fields>
            <asp:BoundField DataField="user_id" HeaderText="user_id" InsertVisible="False" 
                ReadOnly="True" SortExpression="user_id" />
            <asp:BoundField DataField="user_name" HeaderText="user_name" 
                SortExpression="user_name" />
            <asp:BoundField DataField="user_pass" HeaderText="user_pass" 
                SortExpression="user_pass" />
            <asp:BoundField DataField="user_email" HeaderText="user_email" 
                SortExpression="user_email" />
            <asp:CommandField ButtonType="Button" ShowInsertButton="True" />
        </Fields>
    </asp:DetailsView>

    <div ID="Div1" runat="server"></div>


    <asp:AccessDataSource ID="AccessDataSource1" runat="server" 
        DataFile="~/App_Data/esn.mdb" 
        SelectCommand="SELECT * FROM [user]"
        InsertCommand="INSERT INTO [user] ([user_name], [user_pass], [user_email]) VALUES (@user_name, @user_pass, @user_email)">
        <InsertParameters>
            <asp:Parameter Name="user_name" Type="String" />
            <asp:Parameter Name="user_pass" Type="String" />
            <asp:Parameter Name="user_email" Type="String" />
        </InsertParameters>
    </asp:AccessDataSource>





    <asp:GridView ID="GridView1" runat="server" 
        AutoGenerateColumns="False" DataKeyNames="user_id" 
        DataSourceID="AccessDataSource1">
        <Columns>
            <asp:BoundField DataField="user_id" HeaderText="user_id" InsertVisible="False" 
                ReadOnly="True" SortExpression="user_id" />
            <asp:BoundField DataField="user_name" HeaderText="user_name" 
                SortExpression="user_name" />
            <asp:BoundField DataField="user_pass" HeaderText="user_pass" 
                SortExpression="user_pass" />
            <asp:BoundField DataField="user_email" HeaderText="user_email" 
                SortExpression="user_email" />
        </Columns>
    </asp:GridView>

</form>

Answer 1

I think sendig user to a success insert page is an option!

Try look here:

detect duplicate insert

or here:

ASP.Net – Prevent Duplicate(Double) Inserts when Page is refreshed

How to Prevent Duplicate Record Insertion on Refresh Click in Browser in ASP.Net ?

Here a Microsoft article:

Trap the Browser Refresh