Using the class of a user control in code-behind : The Official Microsoft ASP.NET Forums

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aazizorg

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3 Points

7 Posts

Re: Using the class of a user control in code-behind

May 22, 2009 03:08 PM|LINK

Okay, I figured it out (with help to you guys, of course!). The namespace is "ASP" for this website. I don't know why, but it is. I'll give a little background. I started at this company in October, and I didn't start working on the web application until February. The software is a subscriber based web application spread across multiple server farms. It was originally done in classic ASP, and only a few new parts are being coded in ASP.NET (my Crystal Reports module is one of them). Everyone has a copy of the webapp in there local IIS folder, so I connect to the website under localhost IIS. It has a lot of .asp and other files, so it's not a deployed project. I save the pages I work on, then browse to http://localhost/apage.aspx to test.

There is no namespace in the code-behind files. From your post it sounds likes the ASP namespace is the default namespace for controls referenced. Anyways, this works for me. I'll post the relevant code. You won't be able to run it, there's some framework objects there that are just to complicated to post.

Here's the page:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ReferencingControlsIncodeBehind.aspx.cs" Inherits="_test_ReferencingControlsIncodeBehind" %>
<%@ Reference Control="~/_test/WebUserControlInline.ascx" %>
<%@ Reference Control="~/_test/WebUserControlCodebehind.ascx" %>
<%@ Reference Control="~/controls/reports/ScheduledReports.ascx" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:PlaceHolder ID="placeholder" runat="server"></asp:PlaceHolder>
    </div>
    </form>
</body>
</html>

And the code behind:

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

using ASP;

public partial class _test_ReferencingControlsIncodeBehind : System.Web.UI.Page
{
    protected override void OnInit(EventArgs e)
    {
        WebUserControlInline inline = (WebUserControlInline)LoadControl("WebUserControlInline.ascx");
        inline.Text = "INLINE";
        placeholder.Controls.Add(inline);

        WebUserControlCodebehind codebehind = (WebUserControlCodebehind)LoadControl("WebUserControlCodebehind.ascx");
        codebehind.Text = "CODE BEHIND";
        placeholder.Controls.Add(codebehind);

        ScheduledReports scheduledReports = (ScheduledReports)LoadControl("~/controls/reports/ScheduledReports.ascx");
        XmlReportScheduler scheduler = new XmlReportScheduler(Application["app_imagingserver1"].ToString(), 479);
        scheduler.oabcode = 0;
        scheduledReports.LoadSchedules(scheduler, 479);
        placeholder.Controls.Add(scheduledReports);

        base.OnInit(e);
    }
}

And the ReportScheduler.ascx

<%@ Control Language="C#" AutoEventWireup="false" CodeFile="ScheduledReports.ascx.cs" Inherits="controls_reports_ScheduledReports" ClassName="ScheduledReports"%>
<asp:Repeater ID="reportList" runat="server">
    <HeaderTemplate>
        <table>
        <tr>
            <td>Scheduled Report <em>(Click to modify)</em></td>
            <td>Created By</td>
            <td>Last Modified</td>
            <td>Last Ran</td>
            <td>Delete</td>
        </tr>
    </HeaderTemplate>
	<ItemTemplate>
		<tr>
		    <td><asp:LinkButton ID="editLink" CommandName="edit" CommandArgument="<%# ((ScheduledReport)Container.DataItem).File %>" runat="server"><%# ((ScheduledReport)Container.DataItem).File.Replace(".xml", "") %></asp:LinkButton></td>
		    <td><%# ((ScheduledReport)Container.DataItem).UserId %></td>
		    <td><%# ((ScheduledReport)Container.DataItem).Modified.ToString(XmlReportScheduler.LIF_DATE_FORMAT) %></td>
		    <td><%# ((ScheduledReport)Container.DataItem).LastRan > DateTime.MinValue ? ((ScheduledReport)Container.DataItem).LastRan.ToString(XmlReportScheduler.LIF_DATE_FORMAT) : "Never" %></td>
		    <td><asp:LinkButton ID="deleteLink" CommandName="delete" CommandArgument="<%# ((ScheduledReport)Container.DataItem).File %>" runat="server">Delete</asp:LinkButton></td>
		</tr>
	</ItemTemplate>
	<FooterTemplate>
	    <tr>
	        <td colspan="5">Total scheduled reports: <%# Container.ItemIndex %></td>
	    </tr>
		</table>
	</FooterTemplate>
</asp:Repeater>

And it's code behind:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

public partial class controls_reports_ScheduledReports : System.Web.UI.UserControl
{
    public event CommandEventHandler EditSchedule;
    public event CommandEventHandler DeletedSchedule;

    protected override void OnLoad(EventArgs e)
    {
        reportList.ItemCommand += new RepeaterCommandEventHandler(reportList_ItemCommand);
        base.OnLoad(e);
    }

    public void LoadSchedules(XmlReportScheduler scheduler, int mabcode)
    {
        List<ScheduledReport> reports = scheduler.GetScheduledReportSummaries(mabcode);

        if (reports.Count < 1)
        {
            reportList.Controls.Clear();
            reportList.DataSource = null;
        }
        else
        {
            reportList.DataSource = reports;
            reportList.DataBind();
        }
    }

    private void reportList_ItemCommand(object source, RepeaterCommandEventArgs e)
    {
        if (e.CommandName == "edit")
        {
            if (EditSchedule != null)
            {
                EditSchedule(this, new CommandEventArgs("filename", e.CommandArgument));
            }
        }
        else if (e.CommandName == "delete")
        {
            if (DeletedSchedule != null)
                DeletedSchedule(this, new CommandEventArgs("filename", e.CommandArgument));
        }

    }
}

blog.aaziz.org

Edited by aazizorg on May 22, 2009 03:18 PM
Marked as answer by aazizorg on May 22, 2009 03:44 PM

aazizorg

Re: Using the class of a user control in code-behind

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