Form_Booking

Option Compare Database Private Sub Command22_Click()
On Error GoTo Err_Command22_Click

'declaring modular variables

Dim stDocName As String
Dim stLinkCriteria As String

'wizard decleared: button that opens a Rooms Available form

stDocName = "Rooms  Available" DoCmd.OpenForm stDocName, , , stLinkCriteria

Exit_Command22_Click: Exit Sub

Err_Command22_Click: MsgBox Err.Description
Resume Exit_Command22_Click

End Sub
Private Sub Command26_Click()
On Error GoTo Err_Command26_Click Dim stDocName As String

stDocName = "Rooms Query"
DoCmd.OpenQuery stDocName, acNormal, acEdit

Exit_Command26_Click: Exit Sub

Err_Command26_Click: MsgBox Err.Description
Resume Exit_Command26_Click

End Sub
Private Sub Delete_Record_Click()
On Error GoTo Err_Delete_Record_Click


DoCmd.DoMenuItem acFormBar, acEditMenu, 8, , acMenuVer70 DoCmd.DoMenuItem acFormBar, acEditMenu, 6, , acMenuVer70

Exit_Delete_Record_Click: Exit Sub

Err_Delete_Record_Click: MsgBox Err.Description
Resume Exit_Delete_Record_Click

End Sub
Private Sub Command32_Click()
On Error GoTo Err_Command32_Click

DoCmd.GoToRecord , , acNewRec Exit_Command32_Click:
Exit Sub

Err_Command32_Click: MsgBox Err.Description
Resume Exit_Command32_Click

End Sub
Private Sub Command33_Click()
On Error GoTo Err_Command33_Click

DoCmd.GoToRecord , , acNext Exit_Command33_Click:
Exit Sub

Err_Command33_Click: MsgBox Err.Description
Resume Exit_Command33_Click

End Sub
Private Sub Command34_Click()
On Error GoTo Err_Command34_Click

DoCmd.GoToRecord , , acPrevious Exit_Command34_Click:
Exit Sub

Err_Command34_Click: MsgBox Err.Description
Resume Exit_Command34_Click

End Sub
Private Sub Command45_Click()
On Error GoTo Err_Command45_Click

Dim stDocName As String
Dim stLinkCriteria As String

stDocName = "Menu"
DoCmd.OpenForm stDocName, , , stLinkCriteria

Exit_Command45_Click: Exit Sub

Err_Command45_Click: MsgBox Err.Description
Resume Exit_Command45_Click

End Sub
Private Sub Command52_Click()
On Error GoTo Err_Command52_Click

'to reset all inputs on the form

Dim ctlC As Control
For Each ctlC In Me.Controls
If ctlC.ControlType = acTextBox _
Or ctlC.ControlType = acComboBox Then ctlC = Null Next ctlC

DoCmd.RunCommand acCmdRefresh Exit_Command52_Click:
Exit Sub

Err_Command52_Click: MsgBox Err.Description
Resume Exit_Command52_Click End Sub

Visual basic (VB.net) Online Compiler

Write, Run & Share VB.net code online using OneCompiler's VB.net online compiler for free. It's one of the robust, feature-rich online compilers for VB.net language, running on the latest version 16. Getting started with the OneCompiler's VB.net compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as VB.net. OneCompiler also has reference programs, where you can look for the sample code to get started with.

Read input from STDIN in VB.net

OneCompiler's VB.net online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample VB.net program which takes name as input and prints hello message with your name.

Public Module Program
	Public Sub Main(args() As string)
	 Dim name as String = Console.ReadLine()    ' Reading input from STDIN
   Console.WriteLine("Hello " & name)           ' Writing output to STDOUT
	End Sub
End Module

About VB.net

Visual Basic is a event driven programming language by Microsoft, first released in the year 1991.

Key Features

  • Beginner's friendly language.
  • Simple and object oriented programming language.
  • User friendly language and easy to develop GUI based applications.

Syntax help

Variables

Variable is a name given to the storage area in order to identify them in our programs.

Simple syntax of Variable declaration is as follows

Dim variableName [ As [ New ] dataType ] [ = initializer ]

Variable initialization

variableName = value

Conditional Statements

1. If

If condition-expression Then 
    'code
End If

2. If-else

If(conditional-expression)Then
   'code if the conditional-expression is true 
Else
  'code if the conditional-expression is false 
End If

3. If-else-if ladder

If(conditional-expression)Then
   'code if the above conditional-expression is true 
Else If(conditional-expression) Then
        'code if the above conditional-expression is true 
    Else
        'code if the above conditional-expression is false 
End If

4. Nested-If

If(conditional-expression)Then
   'code if the above conditional-expression is true
   If(conditional-expression)Then
         'code if the above conditional-expression is true 
   End If
End If

5. Select Case

Select [ Case ] expression
   [ Case expressionlist
      'code ]
   [ Case Else
      'code ]
End Select

Loops

1. For..Next

For counter [ As datatype ] = begin To end [ Step step ]
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ counter ]

2. For..Each

For Each element [ As datatype ] In group
   'code
   [ Continue For ]
   'code
   [ Exit For ]
   'code
Next [ element ]

3. While

While conditional-expression
   'Code 
   [ Continue While ]
   'Code
   [ Exit While ]
   'Code
End While

4. Do-while

Do { While | Until } conditional-expression
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop

Do
   'Code
   [ Continue Do ]
   'Code
   [ Exit Do ]
   'Code
Loop { While | Until } conditional-expression

Procedures

Procedure is a sub-routine which contains set of statements. Usually Procedures are written when multiple calls are required to same set of statements which increases re-usuability and modularity.

Procedures are of two types.

1. Functions

Functions return a value when they are called.

[accessModifiers] Function functionName [(parameterList)] As returnType
   'code
End Function

2. Sub-Procedures

Sub-procedures are similar to functions but they don't return any value.

Sub ProcedureName (parameterList)
'Code
End Sub