DataTable Dt = new DataTable("cart");
DataColumn dc1 = new DataColumn("KeyWords", Type.GetType("System.String"));
dt.Columns.Add(dc1);
//以上代码完成了DataTable的构架,但是里面是没有任何数据的
DataRow dr = dt.NewRow();
dr["KeyWords"] = "东风";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "联合卡车";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "皮卡";
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "商用车";
dt.Rows.Add(dr);
我想把上面Datatable中的数据按照dr["KeyWords"]的长度进行排序,求助各位帮忙啊
dt.DefaultView.Sort="len(keywords)"
DataTable dtTemp = dt.DefaultView.ToTable();
DataTable dt = new DataTable("cart");
DataColumn dc1;
dc1= new DataColumn("KeyWords", Type.GetType("System.String"));
dt.Columns.Add(dc1);
dc1 = new DataColumn("LegthNum", Type.GetType("System.Int32"));
dt.Columns.Add(dc1);
//以上代码完成了DataTable的构架,但是里面是没有任何数据的
DataRow dr = dt.NewRow();
dr["KeyWords"] = "东风";
dr["LegthNum"] = dr["KeyWords"].ToString().Length;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "联合卡车";
dr["LegthNum"] = dr["KeyWords"].ToString().Length; dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "皮卡";
dr["LegthNum"] = dr["KeyWords"].ToString().Length;
dt.Rows.Add(dr);
dr = dt.NewRow();
dr["KeyWords"] = "商用车";
dr["LegthNum"] = dr["KeyWords"].ToString().Length;
dt.Rows.Add(dr); //this.GridView1.DataSource = dt;
//this.GridView1.DataBind();
//return; DataView dv = dt.DefaultView;
dv.Sort = "LegthNum desc";
DataTable dtTemp = dv.ToTable(); this.GridView1.DataSource = dtTemp;
this.GridView1.DataBind();
return;