Sql 单击按钮创建动态数据库

我面临的一个问题是，当我在vb.net中开发应用程序的安装文件时，数据库文件将不会附加到它，作为解决方案，我希望通过以下代码在应用程序的第一次运行时创建数据库

Dim myCommand As String
Dim myConnectionString As SqlConnection = New SqlConnection("Data Source=(local)\SQLEXPRESS;Initial Catalog=soft_billing;Integrated Security=True;Pooling=False")
        myCommand = "CREATE database soft_billing"
        Dim cmd As SqlCommand = New SqlCommand(myCommand, myConnectionString)
        Try
           cmd.Connection.Open()
           cmd.ExecuteNonQuery()
           cmd.Connection.Close()
        Catch
            MsgBox(" Already installed database", MsgBoxStyle.Critical, " MaS InfoTech- Warning")

        End Try

它不会生成所需的数据库，

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请帮帮我，提前谢谢

如果您正试图创建一个数据库，那么初始目录怎么可能是“软账单”呢？谢谢jmchiliney。。我弄错了

Dim myCommand As String
Dim myConnectionString As SqlConnection = New SqlConnection("Data Source=(local)\SQLEXPRESS;Initial Catalog=master;Integrated Security=True;Pooling=False")
        myCommand = "CREATE database soft_billing"
        Dim cmd As SqlCommand = New SqlCommand(myCommand, myConnectionString)
        Try
           cmd.Connection.Open()
           cmd.ExecuteNonQuery()
           cmd.Connection.Close()
        Catch
            MsgBox(" Already installed database", MsgBoxStyle.Critical, " MaS InfoTech- Warning")

        End Try