CS中like问题
我在CS中根据关键字查找内容，语句如下：

string strsql = "select * form Item where Name like '% '+@GuanJianZhi+ '% ' ";


//SqlCommand myCommand = new SqlCommand(strsql, conn);
SqlDataAdapter ad = new SqlDataAdapter(strsql, conn);

string GuanJianZhi = TextBox1.Text.ToString();
ad.SelectCommand.Parameters.Add(new SqlParameter( "@GuanJianZhi ", SqlDbType.VarChar, 50));
ad.SelectCommand.Parameters[ "@GuanJianZhi "].Value = GuanJianZhi;

运行时提示Form附近有错误，问题出在哪？是我我的like '% '+@GuanJianZhi+ '% ' "这句写错吗？

[解决办法]
string strsql = "select * from Item where Name like '%@GuanJianZhi% ' ";


5555555555，我今天怎么这么大意阿