异常详细信息: System.ArgumentException: 该行已经属于此表。

Code

   
      DataTable dt = new DataTable();
 DataRow dr = dt.NewRow(); 
 int i;
 dt.Columns.Add(new DataColumn("int", typeof(System.Int32)));
 dt.Columns.Add(new DataColumn("string", typeof(System.String)));
 dt.Columns.Add(new DataColumn("datatime", typeof(System.DateTime)));
 dt.Columns.Add(new DataColumn("boolean", typeof(System.Boolean)));

 for (i = 0; i < 9; i++)
 {
 
 dr[0] = i;
 dr[1] = "item" + i.ToString();
 dr[2] = System.DateTime.Now.ToShortDateString();
 if (i / 2 == 0)
 {
 dr[3] = true;
 }
 else
 {
 dr[3] = false;
 }

 dt.Rows.Add(dr);

 }
 this.GridView1.DataSource = dt;
 this.GridView1.DataBind();
 }

修改后：

 

Code

   
      DataTable dt = new DataTable();
 
 int i;
 dt.Columns.Add(new DataColumn("int", typeof(System.Int32)));
 dt.Columns.Add(new DataColumn("string", typeof(System.String)));
 dt.Columns.Add(new DataColumn("datatime", typeof(System.DateTime)));
 dt.Columns.Add(new DataColumn("boolean", typeof(System.Boolean)));

 for (i = 0; i < 9; i++)
 {
 DataRow dr = dt.NewRow();
 dr[0] = i;
 dr[1] = "item" + i.ToString();
 dr[2] = System.DateTime.Now.ToShortDateString();
 if (i / 2 == 0)
 {
 dr[3] = true;
 }
 else
 {
 dr[3] = false;
 }

 dt.Rows.Add(dr);

 }
 this.GridView1.DataSource = dt;
 this.GridView1.DataBind();
 }

实例化行应该放在循环当中。另外，在实例化一个行时候不能用new DataRow();而用dt.NewRow();