How To Bind Enum To DropDownList

This will set the dropdown text to the enum’s description and the value (int) from the enum.

SeverityType.cs (Enum)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

    /// <summary>
    /// Defines a type of Severity.
    /// </summary>
    public enum SeverityType
        [Description("1 - Injury free event, first aid, non recordable")]
        InjuryFreeEvent = 0,

        [Description("2 - Medical, restricted duty/transfer = <2 days")]
        MedResDutyLessTwoDays = 1,

        [Description("3 - Restricted duty/transfer = <= 10 days")]
        MedResDutyLessTenDays = 2,

        [Description("4 - Restricted duty/transfer = <30 days")]
        MedResDutyLessThirtyDays = 3,

        [Description("5 - Restricted duty/transfer =<60 days")]
        MedResDutyLessSixtyDays = 4,

        [Description("6 - Complete disabling or fatality")]
        DisablingOrFatality = 5


Page CodeBehind

            // Bind the Dropdown lists

            // Default first value in dropdown
            this.ddlPotentialSeverity.Items.Add(new ListItem() { Text = "Select one...", Value = "-1" });

            // Retrieve list of SeverityType's from enum
            List<SeverityType> SeverityTypes = new List<SeverityType>((SeverityType[])Enum.GetValues(typeof(SeverityType)));

                 (from severityType in SeverityTypes
                  select new ListItem()
                      Value = severityType.ToString(),
                      Text = Util.GetEnumDescription(severityType)

Util.cs (GetEnumDescription)

        /// <summary>
        /// Gets the enum description given enum value
        /// </summary>
        /// <param name="value">The value from enum.</param>
        /// <returns></returns>
        public static string GetEnumDescription(Enum value)
            FieldInfo fi = value.GetType().GetField(value.ToString());
            DescriptionAttribute[] attributes =
                  typeof(DescriptionAttribute), false);
            return (attributes.Length > 0) ? attributes[0].Description : value.ToString();

How To Embed A UserControl In A Repeater


<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true"
    CodeBehind="ControlInRepeater.aspx.cs" Inherits="com.dereksandbox.ui.Pages.ControlInRepeater" %>

<%@ Register Src="../Controls/EmbeddedControl.ascx" TagName="EmbeddedControl" TagPrefix="uc1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <asp:Repeater ID="Repeater1" runat="server" 
            <uc1:EmbeddedControl ID="EmbeddedControl1" runat="server" />

Page Code Behind

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using com.dereksandbox.ui.Controls;

namespace com.dereksandbox.ui.Pages
    public partial class ControlInRepeater : System.Web.UI.Page
        protected void Page_Load(object sender, EventArgs e)
            Repeater1.DataSource = PersonServiceManager.getPeople();

        protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
            // This event is fired each time a new Person control is created in the repeater

            EmbeddedControl ctrl = (EmbeddedControl)e.Item.FindControl("EmbeddedControl1");
            ctrl.Person = (PersonEntity)e.Item.DataItem;           


Control ASCX

<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="EmbeddedControl.ascx.cs"
    Inherits="com.dereksandbox.ui.Controls.EmbeddedControl" %>
<asp:Label ID="lblName" runat="server" Text="lblName"></asp:Label>
<asp:Label ID="lblWeight" runat="server" Text="lblAge"></asp:Label>
<br />

Control CodeBehind

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace com.dereksandbox.ui.Controls
    public partial class EmbeddedControl : System.Web.UI.UserControl
        public PersonEntity Person { get; set; }

        protected void Page_Load(object sender, EventArgs e)
            lblName.Text = Person.Name;
            lblWeight.Text = Person.Weight.ToString();


How to Hide/Show DIVs Client-Side Using JavaScript

<!-- Hazard & Controls -->
<a id="linkHazardsAndControls" class="HazardsAndControlslink" href="Javascript:void(0)"
    onclick="ShowHazardsAndControls(this);">Hazards &amp; Controls</a>

<div id="DIVHazardAndControls" style="display: none">
    What you want to hide or show in here

<script language="javascript" type="text/javascript">
    function ShowHazardsAndControls(linkReference) {
        if (linkReference.innerHTML == 'Hazards &amp; Controls') {
            document.getElementById('DIVHazardAndControls').style.display = 'inline';
            linkReference.innerHTML = 'Hide Hazards &amp; Controls';
        else {
            document.getElementById('DIVHazardAndControls').style.display = 'none';
            linkReference.innerHTML = 'Hazards &amp; Controls';


Deploying / Publishing ASP.NET Sites

  1. Delete all files from UI’s project /bin
  2. Set to Release mode configuration
  3. Build | Clean Solution
  4. Build | Build Solution
  5. Right click on UI project and select Publish
  6. Specify target location (Disk path: c:\publishedSite)
  7. Click Publish
  8. Upload all files in target location to FTP

Be cognizant of configuration files between environments (example web.config)

You can exclude /lib as well.

How To Add A Scrollbar to an MS AJAX ToolKit AutoCompleteExtender

Create a DIV with it styled with an overflow-y:scroll to allow for vertical scrolling and set the height you want the dropdown to be. Within the AutoCompleteExtender define the CompletionListElementID equal to the ID of the DIV you just created.

<asp:TextBox runat="server" ID="txtBarcodeProduct" Width="400px"
CssClass="barcodeInput" TabIndex="5"></asp:TextBox>

<div id="listPlacement" style="height:100px; overflow-y:scroll;" ></div>


Validate Date Entry In ASP.NET

  • Use the comparevalidator:
  • Set the ControlToValidate property to the conrol to validate
  • Set the Operator property to DataTypeCheck
  • Set the Type property to Date
 <asp:TextBox ID="tbPublishDateStart" runat="server"></asp:TextBox>

<asp:CompareValidator ID="cvPublishDateStart" runat="server" ErrorMessage="Please enter a valid start date" ControlToValidate="tbPublishDateStart" Operator="DataTypeCheck" Type="Date"></asp:CompareValidator>