StrConv() Example Syntax VB.NET ASP.NET | StrConv() | Source Code
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StrConv Example Syntax VB.NET ASP.NET | StrConv | Source Code
Summary: – Illustrates using StrConv with Source Code Syntax Example in VB.NET ASP.NET.
*** 2. StrConv Syntax ***
Purpose:
returns string converted as specified
Syntax:
StrConv(string1,conversion,LocalId)
Parameters |
Description |
string1 |
Required. String expression to be converted.
|
conversion |
Required. VbStrConv member. The enumeration
value specifying the type of conversion to perform.
Enumeration(member) Description()
VbStrConv.None() Performs no conversion
VbStrConv.LinguisticCasing() Uses linguistic rules for casing, rather than File System
(default). Valid with VbStrConv.UpperCase and VbStrConv.LowerCase only.
VbStrConv.Uppercase() Converts the string to uppercase characters.
VbStrConv.Lowercase() Converts the string to lowercase characters.
VbStrConv.ProperCase() Converts the first letter of every word in string to uppercase.
VbStrConv.Wide* Converts narrow (half-width) characters in the string to wide
(full-width) characters.
VbStrConv.Narrow* Converts wide (full-width) characters in the string to narrow
(half-width) characters.
VbStrConv.Katakana** Converts Hiragana characters in the string to Katakana characters.
VbStrConv.Hiragana** Converts Katakana characters in the string to Hiragana characters.
VbStrConv.SimplifiedChinese* Converts Traditional Chinese characters to Simplified Chinese.
VbStrConv.TraditionalChinese* Converts Simplified Chinese characters to Traditional Chinese.
* – Chinese locales only
** – Japanese locales only
|
LocalId |
Optional. The LocaleID value, if different from the system LocaleID value.
(The system LocaleID value is the default.)
|
Result Data Type |
Description |
string |
Converted string expression
|
*** 3. StrConv – Quick Example ***
|
Dim strString1 As String = “Hello”
TextBox1.Text = StrConv(strString1, VbStrConv.Lowercase) ‘Returns hello
|
*** 4. StrConv – Full Example ***
StrConv Example Output Screenshot
Step 1: Click on Visual Basic to Cut-n-paste code into StrConv.aspx.vb
Imports System
Imports System.IO
Imports System.Data
' This example is from http://idealprogrammer.com
' It shows how you can use StrConv syntax in VB.NET ASP.NET
'****************************************************************************************
' Purpose: returns string converted as specified
'
' Syntax: StrConv(string1,conversion,LocalId)
'
' Parameter1: string1 - Required. String expression to be converted.
'
' Parameter2: conversion - Required. VbStrConv member. The enumeration
' value specifying the type of conversion to perform.
' Enumeration(member) Description()
' VbStrConv.None() Performs no conversion
' VbStrConv.LinguisticCasing() Uses linguistic rules for casing, rather than File System
' (default). Valid with VbStrConv.UpperCase and VbStrConv.LowerCase only.
' VbStrConv.Uppercase() Converts the string to uppercase characters.
' VbStrConv.Lowercase() Converts the string to lowercase characters.
' VbStrConv.ProperCase() Converts the first letter of every word in string to uppercase.
' VbStrConv.Wide* Converts narrow (half-width) characters in the string to wide
' (full-width) characters.
' VbStrConv.Narrow* Converts wide (full-width) characters in the string to narrow
' (half-width) characters.
' VbStrConv.Katakana** Converts Hiragana characters in the string to Katakana characters.
' VbStrConv.Hiragana** Converts Katakana characters in the string to Hiragana characters.
' VbStrConv.SimplifiedChinese* Converts Traditional Chinese characters to Simplified Chinese.
' VbStrConv.TraditionalChinese* Converts Simplified Chinese characters to Traditional Chinese.
' * - Chinese locales only
' ** - Japanese locales only
'
' Parameter3: LocalId - Optional. The LocaleID value, if different from the system LocaleID value.
' (The system LocaleID value is the default.)
'
' Result: string - Converted string expression
'
' Quick Example: Dim strString1 As String = "Hello"
' TextBox1.Text = StrConv(strString1, VbStrConv.Lowercase) 'Returns hello
'
'****************************************************************************************
Partial Class _StrConv
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Label1.Text = "Example #1: StrConv(string1,conversion,LocalId) "
Dim strString1 As String = "Hello"
TextBox1.Text = Microsoft.VisualBasic.StrConv(strString1, VbStrConv.Lowercase) 'Returns hello
End Sub
End Class |
Imports System
Imports System.IO
Imports System.Data
' This example is from http://idealprogrammer.com
' It shows how you can use StrConv syntax in VB.NET ASP.NET
'****************************************************************************************
' Purpose: returns string converted as specified
'
' Syntax: StrConv(string1,conversion,LocalId)
'
' Parameter1: string1 - Required. String expression to be converted.
'
' Parameter2: conversion - Required. VbStrConv member. The enumeration
' value specifying the type of conversion to perform.
' Enumeration(member) Description()
' VbStrConv.None() Performs no conversion
' VbStrConv.LinguisticCasing() Uses linguistic rules for casing, rather than File System
' (default). Valid with VbStrConv.UpperCase and VbStrConv.LowerCase only.
' VbStrConv.Uppercase() Converts the string to uppercase characters.
' VbStrConv.Lowercase() Converts the string to lowercase characters.
' VbStrConv.ProperCase() Converts the first letter of every word in string to uppercase.
' VbStrConv.Wide* Converts narrow (half-width) characters in the string to wide
' (full-width) characters.
' VbStrConv.Narrow* Converts wide (full-width) characters in the string to narrow
' (half-width) characters.
' VbStrConv.Katakana** Converts Hiragana characters in the string to Katakana characters.
' VbStrConv.Hiragana** Converts Katakana characters in the string to Hiragana characters.
' VbStrConv.SimplifiedChinese* Converts Traditional Chinese characters to Simplified Chinese.
' VbStrConv.TraditionalChinese* Converts Simplified Chinese characters to Traditional Chinese.
' * - Chinese locales only
' ** - Japanese locales only
'
' Parameter3: LocalId - Optional. The LocaleID value, if different from the system LocaleID value.
' (The system LocaleID value is the default.)
'
' Result: string - Converted string expression
'
' Quick Example: Dim strString1 As String = "Hello"
' TextBox1.Text = StrConv(strString1, VbStrConv.Lowercase) 'Returns hello
'
'****************************************************************************************
Partial Class _StrConv
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Label1.Text = "Example #1: StrConv(string1,conversion,LocalId) "
Dim strString1 As String = "Hello"
TextBox1.Text = Microsoft.VisualBasic.StrConv(strString1, VbStrConv.Lowercase) 'Returns hello
End Sub
End Class
Step 2: Click on XML to Cut-n-paste code into StrConv.aspx
< %@ Page Language="VB" AutoEventWireup="false" CodeFile="StrConv.aspx.vb" Inherits="_StrConv" %>
< !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> |
< %@ Page Language="VB" AutoEventWireup="false" CodeFile="StrConv.aspx.vb" Inherits="_StrConv" %>
< !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 Visual Basic for Language
- name of Web Site could be VBNET_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 StrConv 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 StrConv
- Click on Visual Basic in step 1 at the top of this page to copy code into code-behind StrConv.aspx.vb
- Click on XML in step 2 above to copy code into web form StrConv.aspx
- Right-click on StrConv.aspx in solution explorer and select view in browser
|