关于GridView1_SelectedIndexChanged的问题

[zenggao]

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
{
this.prodid.Value = this.GridView1.SelectedValue.ToString();
this.qnt.Value = ((TextBox)this.GridView1.SelectedRow.Cells[6].FindControl("TextBox1")).Text.ToString();

this.SqlDataSource1.Insert();

}

其中this.SqlDataSource1.Insert();执行的是一个存储过程

我遇到的问题是每按一次选择按钮调用以上方法时会执行两次存储过程，为什么？怎样解决？

存储过程如下：
CREATE PROCEDURE Buyprod
@IDcard varchar(50),
@prodid varchar(50),
@qnt int
as
if exists(select * from cartbox where prodID=@prodid and IDcard=@IDcard and status=0)
begin
update cartbox set qnt=qnt+@qnt where prodID=@prodid and IDcard=@IDcard and status=0
end
else
begin
insert into cartbox(IDcard,prodid,qnt) values(@IDcard,@prodid,@qnt)
end
GO

[andywiliang]

帮你顶高手来



请高手坐阵本群管理员
C C++ C# JAVA编程交流群:11713348

[viki117]

数据刷新引起的2次吧。。。就凭怎么点代码不好判断到底是怎么回事啊

[zenggao]

没有高手吗？有没有人遇过这个问题？

[mohugomohu]

SelectedIndexChanged在加载数据的时候也会触发．
用SelectionChangeCommitted事件试试

[hery2002]

检查你的代码,跟踪一下,估计是你在其他地方调用了.
http://forums.asp.net/p/1119144/1745402.aspx.

[一品梅]

SelectionChangeCommited event is fired only when user changes the selected item (through UI), while SelectedIndexChanged and SelectedValueChanged can also be fired when currently displayed item is changed from code.

Comes in handy when you need to track user changes only and ignore changes you're doing through code.

[一品梅]

哦,明白了,你的声明语句和后台代码中都定义了该事件,将声明语句中的删除.

[一品梅]

看看你的声明语句里有没有GridView1_SelectedIndexChanged

[zenggao]

SelectionChangeCommitted 在哪？我找不到，我用的是GridView1控件

[一品梅]

请参考5,7,8楼.

[zhierhi]

遇到下面的错误：GridView1_SelectedIndexChanged”不是“ASP.usermanage_rolemanage_aspx”的成员
怎么办？