英文:
Data Type Mismatch on SQL statement
问题
我试图从表格中提取列数据到VBA中的计时器。在我的表格中，IntervalSeconds是一个数字。我试图查询秒数以确定要设置计数器的持续时间。
Dim timeRemaining As Long (表单变量) - 用于多个函数中
Private Sub Form_Open(Cancel As Integer)
Dim strSQL As String
Me.Visible = False
strSQL = "SELECT AccessControl.IntervalSeconds FROM AccessControl WHERE AccessControl.DatabaseName = '" & CurrentDb.Name & "'"
timeRemaining = CLng(strSQL)
DoCmd.OpenForm ("frmForceLogout")
End Sub
每次运行表单时，当我执行timeRemaining = cLng(strSQL)这一行时，都会出现类型不匹配错误。我漏掉了什么吗？
英文:
I am trying to pull in column data from a table into a timer in VBA. In my table I have IntervalSeconds as a number. I'm trying to query the number of seconds to determine how long to set my counter for.
Dim timeRemaining As Long (Form Variable) - used in multiple functionss
Private Sub Form_Open(Cancel As Integer)
Dim strSQL As String
Me.Visible = False
strSQL = "SELECT AccessControl.IntervalSeconds FROM AccessControl WHERE AccessControl.DatabaseName = '" & CurrentDb.Name & "'"
timeRemaining = CLng(strSQL)
DoCmd.OpenForm ("frmForceLogout")
End Sub
Every time I run the form I get a Type Mismatch error when I hit the timeRemaining = cLng(strSQL) line. Am I missing something?
答案1
得分: 1
你可以使用 DLookup 来执行这样简单的任务：
Private Sub Form_Open(Cancel As Integer)
Dim Criteria As String
Me.Visible = False
Criteria = "DatabaseName = '" & CurrentDb.Name & "'"
timeRemaining = DLookup("IntervalSeconds", "AccessControl", Criteria)
DoCmd.OpenForm ("frmForceLogout")
End Sub
英文:
You can use DLookup for such simple tasks:
Private Sub Form_Open(Cancel As Integer)
Dim Criteria As String
Me.Visible = False
Criteria = "DatabaseName = '" & CurrentDb.Name & "'"
timeRemaining = DLookup("IntervalSeconds", "AccessControl", Criteria)
DoCmd.OpenForm ("frmForceLogout")
End Sub
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