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8.0

Gridview update does not trigger / session loss on an update

Asked by biodooms in Programming for ASP.NET, C# Programming Language

Tags: ASP.NET, C#, Firstfox, IE6, IE7

Hey,

 
As you can see I have 2 problems.

 

The first is a gridview with an auto generated edit and delete button. All events work except for the update event. I set a breakpoint to confirm the not triggering of my update command (It is more like it just postbacks). The html of my gridview is on the code snippit.

I already tried to replace the autogenerated edit and delete buttons with custom made buttons. I had to add validaterequest="false" and Enableeventvalidation="false" to get it runnable without errors. But still with the same problem. Any solution?

 

The second is a custom made resource editor. I update the  resource with the code shown below the gridview code. What happens is that I start editing one row. And press the update button. The row gets update just fine but my session is gone afther the postback. So I get kicked out of the admin part of the website. And there is no Session.clear or remove to be found in my website.
 

Thank you in advanced,

With kind regards,

Kevin Hendricks. 
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<asp:GridView ID="Productgv" runat="server" AutoGenerateColumns="false" AutoGenerateEditButton="true" AutoGenerateDeleteButton="true"
            OnRowDeleting="Product_Deleting" OnRowEditing="Product_Editing"
            DataKeyNames="ID" OnRowCancelingEdit="Product_CancelEditing" OnRowUpdating="Product_Updating">
            <Columns>
            <asp:TemplateField HeaderText="ID" Visible="False">
                <ItemTemplate>
                    <asp:HiddenField ID="IDif" runat="server" Value='<%# Eval("ID") %>' />
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:HiddenField ID="IDif" runat="server" Value='<%# Eval("ID") %>' />
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Image alt">
                <ItemTemplate>
                    <asp:Label ID="ImageAlterlbl" runat="server" Text='<%# Eval("ImageAlter") %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="ImageAltertb" runat="server" Text='<%# Eval("ImageAlter") %>'></asp:TextBox>
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Image url">
                <ItemTemplate>
                    <img src='<%# Eval("ImageUrl") %>' alt='<%# Eval("ImageAlter") %>' />
                    <asp:HiddenField ID="ImageUrlhf" runat="server" Value='<%# Eval("ImageUrl") %>' />
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:HiddenField ID="ImageUrlhf" runat="server" Value='<%# Eval("ImageUrl") %>' />
                    <table>
                    <tr>
                        <td><asp:Label ID="Changelbl" runat="server" Text="Change picture:"></asp:Label></td>
                        <td><asp:CheckBox ID="Changecb" runat="server" /></td>
                    </tr>
                    <tr>
                        <td colspan="2"><asp:Label ID="Validationlbl" runat="server" Text="" Visible="false" ForeColor="red"></asp:Label></td>
                    </tr>
                    <tr>
                        <td><asp:Label ID="apImageUrllbl" runat="server" Text="Select Image:"></asp:Label></td>
                        <td><asp:FileUpload ID="apImageUrlfu" runat="server" /></td>
                    </tr>
                    <tr>
                        <td><asp:Label ID="Existslbl" runat="server" Text="Overwrite:"></asp:Label></td>
                        <td><asp:CheckBox ID="Existscb" runat="server" /></td>
                    </tr>
                    </table>
                    <img src='<%# Eval("ImageUrl") %>' alt='<%# Eval("ImageAlter") %>' />
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Product Title">
                <ItemTemplate>
                    <asp:Label ID="Titlelbl" runat="server" Text='<%# Eval("Title") %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="Titletb" runat="server" Text='<%# Eval("Title") %>'></asp:TextBox>
                </EditItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Product Info">
                <ItemTemplate>
                    <asp:Label ID="Informationlbl" runat="server" Text='<%# Eval("Information") %>'></asp:Label>
                </ItemTemplate>
                <EditItemTemplate>
                    <asp:TextBox ID="Informationtb" runat="server" Text='<%# Eval("Information") %>'></asp:TextBox>
                </EditItemTemplate>
            </asp:TemplateField>
            </Columns>
            </asp:GridView>     
 
 
 protected void ResourceGridView_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        Label lbl = (Label)ResourceGridview.Rows[e.RowIndex].FindControl("Label1");
        TextBox TextBox1 = (TextBox)ResourceGridview.Rows[e.RowIndex].FindControl("TextBox1");
 
        XmlDocument loResource = new XmlDocument();
        loResource.Load(Server.MapPath("~/App_GlobalResources/" + ResourceListDropdownlist.SelectedItem.ToString()));
 
        XmlNode loRoot = loResource.SelectSingleNode("root/data[@name='" + lbl.Text + "']/value");
 
        if (loRoot != null)
        {
            loRoot.InnerText = TextBox1.Text;
            loResource.Save(Server.MapPath("~/App_GlobalResources/" + ResourceListDropdownlist.SelectedItem.ToString()));
        }
        ResourceGridview.EditIndex = -1;
        ResourceGridviewFill();
    }
[+][-]08/12/08 01:23 AM, ID: 22210923Accepted Solution

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About this solution

Zones: Programming for ASP.NET, C# Programming Language
Tags: ASP.NET, C#, Firstfox, IE6, IE7
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Solution Provided By: biodooms
Participating Experts: 1
Solution Grade: A
 
[+][-]05/16/08 06:18 AM, ID: 21582388Expert Comment

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[+][-]08/12/08 04:38 AM, ID: 22211854Expert Comment

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