Vb.net Datatable上的筛选器表达式问题

我的过滤器表达式有问题，它不工作。我只是想返回CompanyID为mCurrentID的行。objts是一个数据表

Dim mCurrentID As String = lookupInTrenCustomer.EditValue
        'populate grid here
        Dim mFilter As String = "CompanyID=" & mCurrentID
        Dim sortOrder As String = "RegionalBarn DESC"
        objts.Select(mFilter, sortOrder)


        objta.Fill(objts)
        objGridControl.DataSource = objts

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如果CompanyID不是数值，则需要用引号将其括起来

Dim mFilter为String=“CompanyID=”&mCurrentID&“