更改页面时Gridview消失 [英] Gridview dissapears when changing page

问题描述

当我改变页面时，我的gridview消失了

 受保护 < span class =code-keyword> Sub  GridPrevistos_PageIndexChanging（ ByVal  sender  As  对象， ByVal  e  As  GridViewPageEventArgs）句柄 GridPrevistos.PageIndexChanging 
 GridPrevistos.PageIndex = e.NewPageIndex 
 GridPrevistos.DataBind（）
  End   Sub  

请提醒你使用vb.net和asp.net

ty all：）

解决方案

请检查设计中的事件，我认为pageIndexChanging事件未被处理..



错误信息已明确说明..

在你的pageindexchanging事件中你写了以下几行

 GridPrevistos.PageIndex = e.NewPageIndex 
 GridPrevistos.DataBind（ ）
 

但是在编写GridPreVistos.DataBind（）时，你需要再次指定数据源（因为你可能有）首次绑定此网格时提供的。）



简单来说，在为gridview指定当前pageIndex之后，需要再次将其与dataSource绑定。这次它将在e.NewPageIndex中显示新页面的价值。





希望这对你有帮助。

my gridview dissapears when i change page

Protected Sub GridPrevistos_PageIndexChanging(ByVal sender As Object, ByVal e As GridViewPageEventArgs) Handles GridPrevistos.PageIndexChanging
        GridPrevistos.PageIndex = e.NewPageIndex
        GridPrevistos.DataBind()
    End Sub

pls remind that um using vb.net and asp.net
ty all :)

解决方案

Hi,

Please check the event in the design, i think the pageIndexChanging event is not handled..

The error message is clearly stated..

In your pageindexchanging event you wrote following lines

GridPrevistos.PageIndex = e.NewPageIndex
GridPrevistos.DataBind()

But when writing GridPreVistos.DataBind(), you need to specify the data source again (as you may have provided when you bound this grid for the first time).

in simple words, after you specified the current pageIndex for the gridview you need to bind it again with dataSource. This time it will show the new page as value in e.NewPageIndex.


Hope this will help you.

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