Server Error in '/RepVirtuel2' Application.

---

 

Data keys must be specified on GridView 'GridView1' before the selected data keys can be retrieved.  Use the DataKeyNames property to specify data keys.

code de la page Country.aspx:

<%@ Page Language="VB" MasterPageFile="~/Default.master" Title="Your Name Here | Admin"

CodeFile="Country.aspx.vb" Inherits="Admin_Country_aspx" %>

<asp:content id="Content1" contentplaceholderid="Main" runat="server">

<div class="shim column"></div>

<div class="page" id="admin-country">

<div id="sidebar">

<p>

&nbsp;</p>

<p>

&nbsp;</p>

         <asp:SqlDataSource ID="SqlDataSource3" runat="server" ConnectionString="<%$          ConnectionStrings:VALEOConnectionString %>"

InsertCommandType="StoredProcedure" DeleteCommandType="StoredProcedure" UpdateCommandType="StoredProcedure"

DeleteCommand="RemoveCountry" InsertCommand="AddCountry" UpdateCommand="EditCountry"

OldValuesParameterFormatString="original_{0}"

SelectCommand="SELECT * FROM [Country] WHERE ([Trashbin] = @Trashbin)"

CacheDuration="20">

<SelectParameters>

<asp:Parameter DefaultValue="False" Name="Trashbin" Type="Boolean" />

</SelectParameters>

<DeleteParameters>

<asp:ControlParameter ControlID="GridView1" ConvertEmptyStringToNull="False" Direction="Output"

Name="id" PropertyName="SelectedValue" Type="Int16" />

</DeleteParameters>

</asp:SqlDataSource>

&nbsp;

<p>

&nbsp;</p>

<p>

&nbsp;</p>

<p>

&nbsp;</p>

<p>

&nbsp;</p>

<h3>Add New Country</h3>

<p>Before up

&nbsp;loading your pictures, create an album to organize your pictures.</p>

<p>

&nbsp;</p>

<p>

<-- LE FORM WIEV MARCHE JE TE L'AI MIS VU K TU MAS DEMANDER TOUT LE CODE MAIS JE PENSE QUE TU PEUT REGARDER DIRECT LE GRID VIEW QUI MARCHE PAS...-->
<asp:FormView ID="FormView1" Runat="server"

DataSourceID="SqlDataSource3" DefaultMode="Insert"

BorderWidth="0px" CellPadding="0" style="position: relative; left: 9px; top: -13px;" Width="257px" Height="139px">

<InsertItemTemplate>

<asp:TextBox ID="nameTextBox" runat="server" Text='<%# Bind("name") %>'>

</asp:TextBox><br />

<asp:TextBox ID="FKregionTextBox" runat="server" Text='<%# Bind("FKregion") %>'>

</asp:TextBox><br />

<asp:FileUpload ID="FileUpload1" runat="server" FileBytes='<%# Bind("flag") %>'>

</asp:FileUpload>

<br />

<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert"

Text="Insert">

</asp:LinkButton>

<asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel"

Text="Cancel">

</asp:LinkButton>

</InsertItemTemplate>

<ItemTemplate>

<asp:Label ID="nameLabel" runat="server" Text='<%# Bind("name") %>'></asp:Label><br />

<asp:Label ID="idLabel" runat="server" Text='<%# Eval("id") %>'></asp:Label><br />

<asp:Label ID="FKregionLabel" runat="server" Text='<%# Bind("FKregion") %>'></asp:Label><br />

<asp:CheckBox ID="TrashbinCheckBox" runat="server" Checked='<%# Bind("Trashbin") %>'

Enabled="false" /><br />

<asp:Label ID="flagLabel" runat="server" Text='<%# Bind("flag") %>'></asp:Label><br />

<asp:LinkButton ID="EditButton" runat="server" CausesValidation="False" CommandName="Edit"

Text="Edit">

</asp:LinkButton>

<asp:LinkButton ID="DeleteButton" runat="server" CausesValidation="False" CommandName="Delete"

Text="Delete">

</asp:LinkButton>

<asp:LinkButton ID="NewButton" runat="server" CausesValidation="False" CommandName="New"

Text="New">

</asp:LinkButton>

</ItemTemplate>

</asp:FormView>

&nbsp;

</p>

</div>

<div id="content">

<h3>Country</h3>

<asp:GridView ID="GridView1" runat="server"

AllowPaging="True" AutoGenerateColumns="False" Style="position: relative; left: 0px; top: -5px;"

BackColor="White" BorderColor="#3366CC" BorderStyle="None" BorderWidth="1px"

CellPadding="4" Height="298px" PageSize="15" Width="279px"

DataSourceID="SqlDataSource3" DataKeyNames="id" >

                     <Columns>

             <---CETTE COLONNES MARCHE BIEN .. INSPIRER DU STARTER KIT POUR AFFOCHER DES IMAGES... DE MA BASE SQL AVEC UN HANDLER-->
                  <asp:TemplateField>

                  <ItemStyle Width="50px" />

                 <ItemTemplate>

               <table border="0" cellpadding="0" cellspacing="0" class="photo-frame">

              <tr>

             <td class="topx--"></td>

              <td class="top-x-"></td>

              <td class="top--x"></td>

             </tr>

            <tr>

            <td class="midx--"></td>

           <td>

           <img src="../Handler.ashx?id=<%# Eval("id") %>" class="photo_198" style="border:2px solid white;width:50px;" alt='Thumbnail of country <%# Eval("id") %>' /></a></td>

          <td class="mid--x"></td>

         </tr>

         <tr>

         <td class="botx--"></td>

        <td class="bot-x-"></td>

        <td class="bot--x"></td>

       </tr>

      </table>

       </ItemTemplate>

      </asp:TemplateField>

<asp:TemplateField>

<ItemStyle Width="280px" />

<ItemTemplate>

<div style="padding:8px 0;">

<br />

</div>

<div style="width:100%;text-align:right;">

<asp:imageButton ID="Imageedit" runat="Server" CommandName="Edit" skinid="editbutton" />

<asp:ImageButton ID="ImageButton3" Runat="server" CommandName="Delete" SkinID="delete" OnClick="ImageButton3_Click" />

</div>

</ItemTemplate>

<EditItemTemplate>

<div style="padding:8px 0;">

<asp:ImageButton ID="ImageButton4" Runat="server" CommandName="Update" SkinID="save" />

<asp:ImageButton ID="ImageButton5" Runat="server" CommandName="Cancel" SkinID="cancel" />

</div>

</EditItemTemplate>

</asp:TemplateField>

<asp:BoundField DataField="name" HeaderText="name" SortExpression="name" />

<asp:BoundField DataField="id" HeaderText="id" SortExpression="id" />

<asp:BoundField DataField="FKregion" HeaderText="region" SortExpression="FKregion" />

</Columns>

<FooterStyle BackColor="#99CCCC" ForeColor="#003399" />

<RowStyle BackColor="White" ForeColor="#003399" />

<SelectedRowStyle BackColor="#009999" Font-Bold="True" ForeColor="#CCFF99" />

<PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Left" />

<HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />

<EditRowStyle VerticalAlign="Middle" />

</asp:GridView>

<br />

<br />

</div>

&nbsp;

</asp:content>

 Encore merci beaucoup, VIVA CODES SOURCES , moi vivant je continurait à dire à toute personne voulant se formé sur un language .net il faut deux truc une connexion internet pour allé sur Msdn , et un compte sur codes sources pour le forum et ces tuto..

Je commence en ASP, fo excuser, j'ai décortiquer le starter kit pour comprendre la syntaxe et avoir des exemples me suis lis les bouquins Ms press Etape par Etape de Andrew Duthie, le manuel de Ref ,de Douglas Reilly et celui de Eni editions ASP.Net d'Olivier Dewitt et j'ai retourné MSDN mais là je comprends pas pourquoi tout marche sauf mon delete....