objectlistview如何改变header组中的文字？

Question

我想更改组的名称 header 但我无法在文档或 google 上找到任何解决方案。

header中的文字应该是群里总结的时间

它应该是这样的：

Answer 1

the text in the header should be a time which is summed up in the group.

没问题:)

olv.AboutToCreateGroups += delegate(object sender, CreateGroupsEventArgs args) {
    foreach (OLVGroup olvGroup in args.Groups) {
        int totalTime = 0;

        foreach (OLVListItem item in olvGroup.Items) {
            // change this block accordingly
             MyRowObjectType rowObject = item.RowObject as MyRowObjectType;
             totalTime += rowObject.MyNumericProperty;
            // change this block accordingly
        }

        olvGroup.Header += String.Format(" (Total time = {0})", totalTime);
    }
};

objectlistview如何改变header组中的文字？

Objectlistview how to change the text in the group header?

c#

listview

sum

objectlistview