COMMENT UTILISER UN DATATABLE AVEC UN DATAGRID

// dans le fichier .aspx

<asp:datagrid id="dgDest" style="Z-INDEX: 107; LEFT: 32px; POSITION: absolute; TOP: 368px" runat="server" Height="244px" Width="719px" AutoGenerateColumns="False" PageSize="4" AllowPaging="True" ShowFooter="True" AllowSorting="True">
	<Columns>
		<asp:TemplateColumn HeaderText="&lt;B&gt;Nom&lt;/B&gt;">
			<ItemTemplate>
				<asp:Label id=lblText runat="server" Width="289px" Height="25px" Text='<%# DataBinder.Eval(Container, "DataItem.Name") %>'></asp:Label>
			</ItemTemplate>
			<FooterTemplate>
				<asp:TextBox id="txtNewDestName" runat="server" ForeColor="#0000C0" Width="289px" Height="31px"></asp:TextBox>
			</FooterTemplate>
		</asp:TemplateColumn>
		<asp:TemplateColumn HeaderText="&lt;B&gt;Adresse&lt;/B&gt;">
			<ItemTemplate>
				<asp:Label id=Label3 runat="server" Height="25px" Width="329px" Text='<%# DataBinder.Eval(Container, "DataItem.Address") %>'></asp:Label>
			</ItemTemplate>
			<FooterTemplate>
				<asp:TextBox id="txtNewDestAddress" runat="server" Height="33px" Width="329px" ForeColor="#0000C0" TextMode="MultiLine"></asp:TextBox>
			</FooterTemplate>
		</asp:TemplateColumn>
		<asp:TemplateColumn>
			<ItemTemplate>
				<asp:Button id="cmdDelete" runat="server" ForeColor="#0000C0" Width="73px" Font-Bold="True" Text="Supprimer" CommandName="Delete"></asp:Button>
			</ItemTemplate>
			<FooterTemplate>
				<asp:Button id="cmdAdd" runat="server" ForeColor="#0000C0" Width="73px" Font-Bold="True" Text="Ajouter" CommandName="Insert"></asp:Button>
			</FooterTemplate>
		</asp:TemplateColumn>
	</Columns>
	<PagerStyle Mode="NumericPages"></PagerStyle>
</asp:datagrid>

// dans le code behind

private void Page_Load(object sender, System.EventArgs e)
{
	if(!IsPostBack)
	{
		DataTable dt = new DataTable();
 
		dt.Columns.Add(new DataColumn("Name", typeof(string)));
		dt.Columns.Add(new DataColumn("Address", typeof(string)));
 
		dgDest.DataSource = new DataView(dt);
		dgDest.DataBind();

		ViewState.Add("dt", dt);
	}
}

private void dgDest_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
	dgDest.CurrentPageIndex = e.NewPageIndex;
	dgDest.DataSource = new DataView((DataTable)ViewState["dt"]);
	dgDest.DataBind();
}

private void dgDest_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
	((DataTable)ViewState["dt"]).Rows[e.Item.ItemIndex].Delete();
	dgDest.DataSource = new DataView((DataTable)ViewState["dt"]);
	dgDest.DataBind();
}

private void dgDest_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
	if(e.CommandName == "Insert")
	{
		TextBox tName = (TextBox)(e.Item.FindControl("txtNewDestName"));
		TextBox tAddr = (TextBox)(e.Item.FindControl("txtNewDestAddress"));
			
		DataRow dr;
		dr = ((DataTable)ViewState["dt"]).NewRow();
		dr[0] = tName.Text;
		dr[1] = tAddr.Text.Replace("\r\n", "<BR>");
		((DataTable)ViewState["dt"]).Rows.Add(dr);

		tName.Text = "";
		tAddr.Text = "";

		dgDest.DataSource = new DataView((DataTable)ViewState["dt"]);
		dgDest.DataBind();
	}
}