代码剖析-自学记录！

目录：

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01
z02Setup
ADD-EDIT-COPY&ADD-DELETE-FILTER-REFRESH
2011/12/12 8:48

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02
Z10FileTrack

DELETE-FILTER-SELECTION
8:37
--未看--
Reverse

Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
***********************************
'Private' is an access modifier.

Sub - it indicates a procedure. A sub will not return a value, it will only perform an action ( as opposed to, say, a function which will generally
return something).

Sub = Public Sub

ByVal means it is passing the variable by value.

sender is an object of generic type System.Object. All objects in .NET inheirit from System.Object, as such it is passing the control that is casuing
the event to fire.

e is an object o ftype System.EventArgs where EventArgs is the generic Class for event arguments or, the arguments the event is passed.

ByVal <> ByRef By value by reference.

System.Object and System.EventArgs are the type of Objects System class provides.

sender is an instance of System.Object, e is instance of System.EventArgs
***************************************
--未看的--
cls02Period.InitSqlCode()
pAfterAddRefresh()

'If InStr("ABCDEF", UCase(PriceGroup), CompareMethod.Binary) > 0 Then
' vpSearchItem7 = PriceGroup
'Else
' vpSearchItem7 = "A"
'End If

txtAge.Text = DateDiff(DateInterval.Year, CDate(cls00Regional.Nothing_toString(ds.Tables(0).Rows(0)!DateBirth)), CDate(Now.Date))
算年龄

Math.Round(Format2Value(Me.txtFeeDue.Text), 2)

'Format2Value() .- 把()它们变成数字
'Math.Round(XX,2) - 保留两个小数