网格视图中的标题文本已更改为零
本文关键字:文本 视图 标题 网格 | 更新日期: 2023-09-27 18:27:21
我使用以下代码在网格视图中获得DataField="Quantity"
的总和,并在网格视图页脚中显示结果
问题是HeaderText="Quantity"
变为零
protected void griddelverynote_RowDataBound(object sender, GridViewRowEventArgs e)
{
int TotalQuantity = 0;
if (e.Row.RowType == DataControlRowType.DataRow)
TotalQuantity += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Quantity"));
else if (e.Row.RowType == DataControlRowType.Footer)
e.Row.Cells[1].Text = "Total Quantity";
e.Row.Cells[2].Text = TotalQuantity.ToString();
}
代码中的问题是,绑定每一行时都会触发RowDataBound
事件。因此,对于每一行,TotalQuantity
被重新初始化为0
。在以下外部声明变量TotalQuantity
:-
int TotalQuantity = 0;
protected void griddelverynote_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
TotalQuantity += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Quantity"));
else if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[1].Text = "Total Quantity";
e.Row.Cells[2].Text = TotalQuantity.ToString();
}
}