改变 TreeView 的背景 Private Declare Function SendMessage Lib "User32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Long) As Long Private Declare Function GetWindowLong Lib "User32&qu…
昨天使Linq To SQLite 支持VB,今天在VB中写了几条Linq语句,发现了几个问题: 1.在Linq To SQLite中的Linq语句查询后并不是得到的匿名数据类,而是将Linq转换为SQL语言?例如: Dim tempProvince = From cust In db.AddressProvinces Select cust 执行后得到的tempProvince并不是一个匿名数据类,而是: 所以,Linq To SQlite查询执行后的结果不能直接绑定控件,而是要.ToList…
Private Sub numDuration_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles numDuration.KeyUp numDuration.Value = numDuration.Value End Sub Private Sub numDuration_ValueChanged(ByVal sender As Object, ByVal e As System…
Sub可以理解为执行一个过车,一个操作. Function在执行完过后,还要返回一个结果. Sub:过程:Function:函数,可以带返回值. 语法: Sub SubName(参数1,参数2,...) ... End Sub Function FunctionName(参数1,参数2,...) ... FunctionName=返回值 End Function 调用时: Sub 只能用: SubName(参数1,参数2,...) 变量=FunctionName(参数1…