C-Sharp Mid Example | ASP.NET C# Mid Syntax | Source Code
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C-Sharp Mid Example | ASP.NET C# Mid Syntax | Source Code
Purpose: – Here is a Mid Example that illustrates the C# Syntax in ASP.NET.
Step 1: Click on C# to Cut-n-paste code into Mid.aspx.cs
| C# | | copy code | | ? |
using System; |
using System.Collections.Generic; |
using System.Linq; |
using System.Web; |
using System.Web.UI; |
using System.Web.UI.WebControls; |
// This example is from http://idealprogrammer.com |
// It shows how you can use Mid syntax in C-Sharp ASP.NET |
//**************************************************************************************** |
// Example #1: Mid(string, startIndex[, length]) |
// Returns the specified number of characters from the string starting |
// at the specified position. If the length is not specified, all of the |
// characters to the end of the string are returned |
//**************************************************************************************** |
public partial class StringManipulation_Mid : System.Web.UI.Page |
{ |
protected void Page_Load(object sender, EventArgs e) |
{ |
Label1.Text = "Example #1: Mid(strField, 2, 3) "; |
string strField = "123456"; |
Label2.Text = strField.Substring(1, 3); //Returns 234 |
} |
} |
Step 2: Click on XML to Cut-n-paste code into Mid.aspx
| XML | | copy code | | ? |
< %@ Page Language="C#" AutoEventWireup="true" CodeFile="Mid.aspx.cs" Inherits="StringManipulation_Mid" %> |
< !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:label ID="Label2" runat="server" Text="Label"></asp:label><br /> |
</div> |
</form> |
</body> |
</html> |
Prerequistes:
- Install Visual Web Developer 2010
- Install SQL Server Express
- Download Northwind and Pubs Databases
- Attach Northwind Database to Databases in Sql Express
- 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:
 |
 |
- Use Visual Web Developer 2010
- 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.
- Add New folder named "StringManipulation"
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: StringManipulation
- Add Web Form Named Mid.aspx to StringManipulation folder
- Right-click StringManipulation folder;
- add new item;
- Select Web Form
- Check place code behind in separate file
- Web Form name could be Mid.aspx
- Click on C-Sharp in step 1 at the top of this page to copy code into web form Mid.aspx
- Click on XML in step 2 above to copy code into code-behind Mid.aspx.cs
- Right-click on Mid.aspx in solution explorer and select view in browser
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