gridview中 各种事件中 获得行“主键”的方法

1.后台任意一个位置

获取GridView行的主键值

foreach (GridViewRow row in GridView1.Rows)

{     string order_Id=this.GridView1.DataKeys[row.RowIndex]["orders_Id"].ToString(); }

红色标注的是主键的字段

2.

我们最常用的，当然就是RowDataBound方法了

在 GridView1_RowDataBound中获取主键的值 protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {     int index = GridView1.DataKeys[e.Row.RowIndex].Value; }

其次就是删除事件

在 GridView1_RowDeleting中获取主键的值 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)  {     int index=GridView1.DataKeys[e.RowIndex].Value;  }

分页事件

在 GridView1_PageIndexChanging中获取主键的值

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)  {     int index=GridView1.DataKeys[e.NewPageIndex].Value;  }

还有其它几个不常用的：

在 GridView1_RowCommand中获取主键的值：

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)  {        int index = GridView1.DataKeys[Convert.ToInt32(e.CommandArgument)].Value;  }

 

在 GridView1_RowEditing中获取主键的值 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)  {      int index = GridView1.DataKeys[e.NewEditIndex].Value;  }

在 GridView1_RowUpdating中获取主键的值

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)  {      int index = GridView1.DataKeys[e.RowIndex].Value;  }