ConvertToDateTime Example Syntax C-Sharp ASP.NET | C# ConvertToDateTime | Source Code

Posted by on Tuesday, May 17, 2011 · Leave a Comment 

ConvertToDateTime Example Syntax C-Sharp ASP.NET | C# ConvertToDateTime | Source Code

Summary: – Illustrates using with in C-Sharp ASP.NET.


View Other C-Sharp ASP.NET Type Conversion Function Examples


Purpose:
Converts any valid date and time into date data type

Syntax:
Convert.ToDateTime(expression)

Parameters Description
expression any valid representation of date and time

Result Data Type Description
date returns date

Quick Example
Dim date1 As Date = Convert.ToDateTime(“September 12, 2011”)
TextBox1.Text = date1 Returns 9/12/2011 12:00:00 AM

Step 1: Click on cs to Cut-n-paste code into ConvertToDateTime.aspx.cs

using System;
using System.IO;
using System.Data;
 
//****************************************************************************************
// Purpose: Converts any valid date and time into date data type
//
// Syntax: 	Convert.ToDateTime(expression)
//
// Parameter1: expression - any valid representation of date and time
//
// Result: date - returns date
//
// Quick Example:   Dim date1 As Date = Convert.ToDateTime("September 12, 2011")
//        TextBox1.Text = date1 // Returns 9/12/2011 12:00:00 AM
//
//
//****************************************************************************************
// This example is from http://idealprogrammer.com
// It shows how you can use CDate syntax in C-Sharp ASP.NET
 
 
partial class _ConvertToDateTime : System.Web.UI.Page
{
 
    protected void Page_Load(object sender, System.EventArgs e)
    {
 
        Label1.Text = "Example #1: 	Convert.ToDateTime(expression) ";
 
        DateTime date1 = Convert.ToDateTime("September 12, 2011");
 
        TextBox1.Text = date1.ToString(); // Returns 9/12/2011 12:00:00 AM
 
        Label2.Text = "Example #2: 	Convert.ToDateTime(expression) ";
 
        DateTime date2 = Convert.ToDateTime("3:08:40 PM");
 
        TextBox2.Text = date2.ToString(); // Returns currentdate 3:08:40 PM
 
        Label3.Text = "Example #3: 	Convert.ToDateTime(expression)";
 
        DateTime date3 = Convert.ToDateTime("September 12, 2011 3:08:40 PM");
 
        TextBox3.Text = date3.ToString(); // Returns September 12, 2011 3:08:40 PM
 
 
    }
 
 
}

Step 2: Click on XML to Cut-n-paste code into ConvertToDateTime.aspx

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="ConvertToDateTime.aspx.cs" Inherits="_ConvertToDateTime" %>
 
< !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></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h1><asp:label ID="Label1" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox1" runat="server"></asp:textbox><br />
          <h1><asp:label ID="Label2" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox2" runat="server"></asp:textbox><br />
          <h1><asp:label ID="Label3" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox3" runat="server"></asp:textbox><br />
 
 
 
    </div>
    </form>
</body>
</html>

Prerequistes:

  1. Install Visual Web Developer 2010
  2. Install SQL Server Express
  3. Download Northwind and Pubs Databases
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • You can build your own library of syntax examples by using same web site over and over and just add new web forms to it.

Instructions:

C-Sharp ASP.NET Syntax Functions ConversionFunctions ConvertToDateTime
  1. Use Visual Web Developer 2010
  2. Create new web site;
    • Click File/New Web Site
    • Select ASP.NET Website Template
    • Select C-Sharp for Language
    • name of Web Site could be CSharp_ASPNET_Syntax.
  3. Add New folder named “Functions”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: Functions
  4. Add New subfolder named “ConversionFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: ConversionFunctions
  5. Add New subfolder named “TypeConversionFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: TypeConversionFunctions
  6. Add Web Form Named ConvertToDateTime to TypeConversionFunctions folder
    • Right-click TypeConversionFunctions folder;
    • add new item;
    • Select Web Form
    • Check place code behind in separate file
    • Web Form name could be ConvertToDateTime
  7. Click on cs in step 1 at the top of this page to copy code into code-behind ConvertToDateTime.aspx.cs
  8. Click on XML in step 2 above to copy code into web form ConvertToDateTime.aspx
  9. Right-click on ConvertToDateTime.aspx in solution explorer and select view in browser

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