vb翻写成C#,简单!!!!
private DataView GetRy()
{
DataSet dstRy;
SqlConnection conRy;
SqlDataAdapter dadRy;
DataView dvwRy;
dvwRy =(DataView)Cache["Ry"];
if (dvwRy is nothing)
{
dstRy = new DataSet();
conRy = new SqlConnection(ConfigurationSettings.AppSettings["MyCon"]);
dadRy = new SqlDataAdapter("select * from mydbt",conRy);
dadRy.Fill(dstRy,"mydbt");
dvwRy = dstRy.Tables["ptt_ry"].DefaultView;
Cache["Ry"] = dvwRy;
}
return dvwRy;
}
该段代码总是通不过编译,问题出在dvwRy is nothing,这句是VB的语法,请问各位大侠c#中该怎么写?