Remove ID from URL in ASP.net - asp.net

Question

I want to remove the ID from the URL in ASP.net 2010.
I tried to search in the net but I didn't get a clear solution.
Can you help me please or send me links for a clear solution to understand and apply in my website?
I have a simple datalist in the page Architecture.aspx. this datalist get info from SqlDataSource1 (see code below).
When I press in the LinkButton (Image1), a new page (ViewProject) opens, in the URL I have (http://localhost:51550/Portfolio/ViewProject.aspx?ID=1). I dont want to show the ID:
<asp:DataList ID="DataList1" runat="server" DataKeyField="ID"
DataSourceID="SqlDataSource1" RepeatColumns="4" RepeatDirection="Horizontal" style="margin-right: 0px"
EnableViewState="false">
<ItemTemplate>
<asp:Panel ID="Panel1" runat="server" BorderStyle = "None" Height="250px" Width="200px">
<table id="Table1" runat="server" style="height: 50px">
<tr >
<td style="color: #000000; width: 75%; font-weight: lighter" align="center">
<asp:LinkButton Width="145px" Height ="200px" ID="Image1" runat="server" CommandName="ViewDetails" CommandArgument='<%#Eval("ID") %>' OnCommand = "Click_LinkButton1" >
<div class ="pic">
<asp:Image ID = "im1" runat="server" ImageUrl= '<%# Eval("mainPic")%>' Width="150px" Height ="200px" BorderWidth="0px" />
</div>
</asp:LinkButton>
</td>
</tr>
<tr >
<td style="width: 75%; font-weight: lighter; padding-left:19px">
<asp:Label ID="lbl2" runat="server" Text='<%#Eval("title") %>' ForeColor="Gray" Font-Names="Lucida Sans Unicode" Font-Size="12px"></asp:Label>
</td>
</tr>
</table>
</asp:Panel>
</ItemTemplate>
</asp:DataList>
</div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:PortfolioConnectionString %>"
SelectCommand="SELECT [ID], [title], [mainPic] FROM [Project]">
</asp:SqlDataSource>
protected void Click_LinkButton1(object sender, CommandEventArgs e)
{
string url = "ViewProject.aspx?";
url += "ID=" + e.CommandArgument;
Response.Redirect(url);
}

Answer 1

You can use it as
protected void Click_LinkButton1(object sender, CommandEventArgs e)
{
string url = "ViewProject.aspx";
Session("ID") = e.CommandArgument;
Response.Redirect(url);
}
and can access it as on the page load event of another page
protected void Page_Load(object sender, System.EventArgs e)
{
String strID = Session("ID").ToString;
}
To learn more about sessions visit asp.net-tutorials.com/state/sessions/, MSDN Article ASP.NET Session State and How to: Read Values from Session State

Answer 2

haraman's implementation is not good. His implementation didn't check for missing "ID" in the session. That means if someone navigates directly to the page without having clicked on that link button, they're going to get a NullReferenceException. Why would they navigate directly there? Perhaps they bookmarked it. Or they refresh the page after their session expires. Or they share the link with a coworker.
Instead, you should pass the ID in the URL. There's nothing unprofessional about it. It's certainly preferable to the problems that not including it would cause. If you're concerned about the looks, you can make it look nicer. You don't have to utilize query string.
Query string example:
example.com/ViewProject.aspx?id=987
ASP.NET has a concept of routing, which you can utilize in your application for a clean URL. Using routing, your URL can look like this:
example.com/ViewProject/987
And with some additional tools, you can make it search engine/user friendly (Stack Overflow does this):
example.com/ViewProject/987/My-Fancy-Project