repeater实现统计问题

[xinyouf]

protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
int sum1 = 0;
int sum2 = 0;
int sum3 = 0;
int sum4 = 0;
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
sum1 =sum1+ Convert.ToInt32((e.Item.FindControl("Label1") as Label).Text);
sum2 += Convert.ToInt32((e.Item.FindControl("Label2") as Label).Text);
sum3 += Convert.ToInt32((e.Item.FindControl("Label3") as Label).Text);
sum4 += Convert.ToInt32((e.Item.FindControl("Label4") as Label).Text);
}

else if (e.Item.ItemType == ListItemType.Footer)
{
(e.Item.FindControl("LitSum1") as Literal).Text=sum1.ToString();
JScript.Alert(sum1);
}
JScript.Alert(sum2);
}

为什么数据累加不了呢

[q107770540]

单步调试

[丰云]

你的容器变量定义在Repeater方法里面，
每次进入方法都会从新初始化，
那样能累加吗？

[wuyq11]

设置断点，单步调试数据
protected void Repeater1_ItemCreated(object sender, RepeaterItemEventArgs e)
{
if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)
{
DataRowView drv = e.Item.DataItem as DataRowView;
if (drv != null)
{
Sum += Convert.ToInt32(drv["s"]);
}
}else if (e.Item.ItemType == ListItemType.Footer)
{
Literal lit=e.Item.FindControl("lit") as Literal;
if (lit != null)
{
lit.Text = Sum.ToString();
}

}

}

[koukoujiayi]

将变量声明放在方法外面,如:
int sum1 = 0;
int sum2 = 0;
int sum3 = 0;
int sum4 = 0;
protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
////.............
}