'System.String' does not contain a property - asp.net

Question

<asp:Repeater ID="rptProducts1" runat="server">
<ItemTemplate>
<div class="product_header">
<asp:Label ID="prodLabels" runat="server" >
<p><h4><%#Eval("Name") %></h4></p>
</asp:Label>
</div>
<div class="left-col">
<div class="img_product">
<asp:Image ID="imgProduct" runat="server" ImageUrl='<%# Eval("Picture") %>' Width="200px" Height="200px"/>
</div>
</div>
</ItemTemplate>
</asp:Repeater>
Code Behind:
List<ProductModel> _prodObj = new List<ProductModel>();
_prodObj = response.Content.ReadAsAsync<List<ProductModel>>().Result;
_prodObj.Where(x => x.PictureId != 0).Select(v => v.Picture = "data:image/png;base64," + Convert.ToBase64String(v.PictureBinary));
var _prodname = _prodObj.Where(x=>x.Id!=0).Select(i => i.Name=""+i.Name);
try
{
rptProducts1.DataSource = _prodname;
rptProducts1.DataBind();
}
catch (Exception ex)
{
throw;
}
Issue while fetching data from the database.Want to display name and image of the product.While fetching records 'System.String' does not contain a property error is thrown.
Thanks in advance.

Answer 1

You are databinding your repeater to a list of String as far as I can see.
This line will fetch a list of strings:
var _prodname = _prodObj.Where(x=>x.Id!=0).Select(i => i.Name=""+i.Name);
=> _prodname will be equal to a list of names.
And then, when you databind, you have this line:
Eval("Id")
Which is essentially saying: take the current object (which is a String) and print the Id property here. But since it's a String, it has no ID property, hence your exception.
So in short: bind to the list of products you want to display (the full objects, not just the names), or change your view to not use any properties that simply aren't there.
UPDATE
If you just want to display the one product, I'd advise you to select the right product server-side before databinding your control, like this for instance:
var _prodname = _prodObj.Where(x=>x.Id!=0 && x.Id == myId).FirstOrDefault().Select(i => i.Name=""+i.Name);
... where "myId" is of course the Id you're searching for.
And then, you should use a repeater to show the data. You can just use a Label like this:
<asp:Label ID="myLabel" runat="server" />
// and server side you would do this:
myLabel.Text = _prodName;

Answer 2

prodObj.Where(x=>x.Id!=0)
I suspect this is failing because x is a string and not what you expect it to be.
You need to do some debugging to identify what type x is, and then trace back to find where it stops being what you expect it to be.
Also,
_prodObj.Where(x => x.PictureId != 0).Select(v => v.Picture = "data:image/png;base64," + Convert.ToBase64String(v.PictureBinary));
LINQ is evaluated lazily, unless something enumerates the result of the above expression nothing will be executed.