Question

I have a nestedGridTemplate which contains one object of a list.

            this.Gridparent.MasterTableView.NestedViewTemplate = new Custom14NestedTemplate(this.model.Material.First());

This calls my class public class Custom14Template.

This class calls :

    public void InstantiateIn(System.Web.UI.Control container)
    {
        var myPage = new Page();
        Control c = myPage.LoadControl("~/Custom14/Templates/View.ascx");
        container.Controls.Add(c);

        var x = new Label();
        x.Text = string.Format("qty : {0}.<br />", this.MyMaterial.Quantity);
        container.Controls.Add(x);
    }

Right now, my ascx contains only this :

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="View.ascx.cs" Inherits="*snip*.Templates.View" %>

hello there

Everything is displayed correctly

  [grid start]
  [item 1 : expanded]
     hello there qty : 23.
  [/item 1]
  [item 2 /]
  [item 3 /]
  [/grid]

I’d like to pass my object to my ASCX, to build my html display from there using… The old equivalent of <%= html.EditorFor() %> (Asp.Net MVC). Instead of creating elements like my label and adding them to the container (building html in c# feels painful). Is that doable? How?

Answer 1

I adapted this answer to my need (no ICustomControl) :

The calling file contains the following :

    public void InstantiateIn(System.Web.UI.Control container)
    {

       Page myPage = new Page();
       Control userControl = myPage.LoadControl("~/Templates/Edit.ascx");

       //this is the important part
       if (userControl is Edit)
       {
           Edit customControl = userControl as Edit;
           customControl.MyObject= this.PersistedObject;
       }

        container.Controls.Add(userControl);
    }

The .ascx.cs was also modified a bit :

public partial class Edit : System.Web.UI.UserControl
{

    public Produit MyObject { get; set; }

    protected void Page_Load(object sender, EventArgs e)
    {
        this.product.Text = MyObject.ProductName;
        this.Production.Text = MyObject.Production.ToString();

    }
}

And the ascx just contains two plains, regulars asp:textbox (ID= product and production).