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);

}

}