任何人都可以解释下面的代码，它来自gridview_rowdatabound方法 [英] Can anyone explain the below code, which is from a gridview_rowdatabound method

问题描述

Dim tblIdTitleHdr = CType(e.Row.Parent, Table)

tblIdTitleHdr.Controls.AddAt(e.Row.RowIndex * 2 + 1, idTitleHdr)

我尝试过：



这里，idTitleHdr是一个新的GridViewRow。



基本上，本代码的作用是为Gridview中的每一行重复一个标题。守则工作正常。我只是想知道上面的代码行实际上是做什么的。任何帮助将不胜感激。



谢谢！

What I have tried:

Here, idTitleHdr is a new GridViewRow.

Basically, what this Code does is to repeat a header for each row in a Gridview. The Code's working fine. I just want to know what the above lines of Code do actually. Any help would be greatly appreciated.

Thanks!

推荐答案

它正在添加一个控件（idtitleHdr）另一个控件的子控件集合（可能是面板类型）。



只有你知道上下文：什么控制tblIdTitleHdr和idTitleHdr;以及其他控件在集合中导致标题插入范围（即...... * 2 + 1）。



控件添加到（父）集合的顺序会影响它们的呈现顺序。

It's adding a control (idtitleHdr) to another control's "child control" collection (probably a "panel" type).

Only you know the context: what controls tblIdTitleHdr and idTitleHdr are; and what OTHER CONTROLS are in the collection that cause the "headers" to be inserted over a "range" (i.e .... * 2 + 1).

The order in which controls are added to a (parent) collection influences to order in which they are rendered.

这篇关于任何人都可以解释下面的代码，它来自gridview_rowdatabound方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！