ConvertToString Example Syntax C-Sharp ASP.NET | C# ConvertToString | Source Code
ConvertToString Example Syntax C-Sharp ASP.NET | C# ConvertToString | Source Code
Summary: – Illustrates using ConvertToString with Source Code Syntax Example in C-Sharp ASP.NET.
Purpose:
Converts boolean, date, and numeric data types into String data type
Syntax:
Convert.ToString(expression)
Convert.ToString(expression)
Parameters | Description | expression | boolean, date, and numeric data types |
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Result Data Type | Description | String | 1. If boolean, returns string “True” or “False” 2. If date, returns A string containing a date value (date and time) in the short date format of your system 3. If number, returns a string representing the number |
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Quick Example | Dim myBool As Boolean = True Dim String1 As String = Convert.ToString(myBool) TextBox1.Text = String1.ToString() Returns True |
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Step 1: Click on cs to Cut-n-paste code into ConvertToString.aspx.cs
using System; using System.IO; using System.Data; //***************************************************************************************** // Purpose: Converts boolean, date, and numeric data types into String data type // // Syntax: Convert.ToString(expression) // // Parameter1: expression - boolean, date, and numeric data types // // Result: String - 1. If boolean, returns string "True" or "False" // 2. If date, returns A string containing a date value (date and time) in the short date // format of your system // 3. If number, returns a string representing the number // // Quick Example: Dim myBool As Boolean = True // Dim String1 As String = Convert.ToString(myBool) // TextBox1.Text = String1.ToString() // Returns True // // //**************************************************************************************** // This example is from http://idealprogrammer.com partial class _ConvertToString : System.Web.UI.Page { protected void Page_Load(object sender, System.EventArgs e) { Label1.Text = "Example #1: Convert.ToString(myBool) "; bool myBool = true; string String1 = Convert.ToString(myBool); TextBox1.Text = String1; // Returns True Label2.Text = "Example #2: Convert.ToString(myDate) "; DateTime myDate = Convert.ToDateTime("10/21/2011"); string String2 = Convert.ToString(myDate); TextBox2.Text = String2; // Returns 10/21/2011 Label3.Text = "Example #3: Convert.ToString(5.5)"; string String3 = Convert.ToString(5.5); TextBox3.Text = String3; // Returns 5.5 } } |
Step 2: Click on XML to Cut-n-paste code into ConvertToString.aspx
< %@ Page Language="VB" AutoEventWireup="false" CodeFile="ConvertToString.aspx.cs" Inherits="_ConvertToString" %> < !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:
- 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 “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “ConversionFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: ConversionFunctions
- Add New subfolder named “TypeConversionFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: TypeConversionFunctions
- Add Web Form Named ConvertToString 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 ConvertToString
- Click on cs in step 1 at the top of this page to copy code into code-behind ConvertToString.aspx.cs
- Click on XML in step 2 above to copy code into web form ConvertToString.aspx
- Right-click on ConvertToString.aspx in solution explorer and select view in browser