GridView的RowCreated与RowDataBound事件

 

RowDataBound是数据绑定的时候才会触发，RowCreated是每次呈现的时候都要触发，RowCreated先于RowDataBound执行。

举个列，如果页面回发后发生过GridView.databind()，那么两个事件都会触发。如果没发生GridView.databind()，那么就只会触发RowCreated。

事件执行顺序：

一、GridView 显示绑定的数据顺序如下：

DataBinding ->RowCreated ->RowDataBound ->...... ->DataBound

 

      /// <summary>
        /// 初始化gridview时绑定编辑里的下拉框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void gdvCustomerList_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType == DataControlRowType.DataRow && ((e.Row.RowState & DataControlRowState.Edit) > 0))
            {
                string id = this.gdvCustomerList.DataKeys[e.Row.RowIndex].Value.ToString();
                //取得所属行业列表
                DataTable dtTrade = customerDetailBLL.GetTradeListByTypeName();
                //自定义下拉列表
                NewDropDownList ddl = new NewDropDownList(dtTrade);
                ddl.ID = "ddlss";
                ddl.DataTextField = "kindname";
                ddl.DataValueField = "kindid";
                ddl.DataSource = dtTrade;
                ddl.DataBind();
                ddl.SelectedValue = customerBLL.Trade(id).Rows[0][0].ToString();
                e.Row.Cells[10].Controls.Add(ddl);

            }
        }

        /// <summary>
        /// 初始化gridview时绑定编辑里的下拉框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void gdvCustomerList_RowCreated(object sender, GridViewRowEventArgs e)
        {
        
            //if (e.Row.RowType == DataControlRowType.DataRow && ((e.Row.RowState & DataControlRowState.Edit) > 0)) 
          //和下句的效果是一样的，编辑时偶数行，奇数行都可以添加到
            if ((e.Row.RowState & DataControlRowState.Edit) != 0)
            {
             
                    string id = this.gdvCustomerList.DataKeys[e.Row.RowIndex].Value.ToString();
                    //取得所属行业列表
                    DataTable dtTrade = customerDetailBLL.GetTradeListByTypeName();
                    //自定义下拉列表
                    NewDropDownList ddl = new NewDropDownList(dtTrade);
                    ddl.ID = "ddlss";
                    ddl.DataTextField = "kindname";
                    ddl.DataValueField = "kindid";
                    ddl.DataSource = dtTrade;
                    ddl.DataBind();
                    ddl.SelectedValue = customerBLL.Trade(id).Rows[0][0].ToString();
                    e.Row.Cells[10].Controls.Add(ddl);
              
            }

        }