我写的第一段代码就有错

[catliang]

我想在载入窗体时就打开数据库连接
Private Sub Form_Load()
Dim mySqlConnection As String

mySqlConnection = "Data cource=localhost" & _
"Initial Catalog=try" & _
"user Id=sa;Password=;" & _
"Connect timeout=30"

Dim conn as New SqlConnection(mySqlConnection)
conn.Open()

End Sub

为什么提示语法错误啊？