datagrid| Pagination | The problem with the recent Web site has encountered a strange problem, in the DataGrid for paging, unable to respond to the PageIndexChanged event.
I have also consulted a lot of articles about this, but I still haven't got the solution. Found the crux of the discussion with others
First, I'll post the code here:
The following is the HTML code for the Datagird control (does not contain field bindings)
<asp:datagrid id= "Searchgrid" runat= "Server" width= "100%" autogeneratecolumns= "False" enableviewstate= "true" allowpaging= "True" pagesize= "3" pagerstyle-mode= "NumericPages" pagerstyle-horizontalalign= "right" Pagerstyle-pagebuttoncount= "5" onpageindexchanged= "searchgrid_pageichanged" >
Here is the post code:
Private Sub Page_Load (ByVal sender as System.Object, ByVal e as System.EventArgs) Handles MyBase.Load
If not IsPostBack Then
Bindgrid ()
End If
End Sub
Public Sub searchgrid_pageichanged (ByVal s as Object, ByVal e as DataGridPageChangedEventArgs)
Searchgrid.currentpageindex = E.newpageindex
Bindgrid ()
End Sub
Public Sub Bindgrid ()
Searchgrid.datasource = (bind your data source)
Searchgrid.databind ()
End Sub
For the code above, the first load page can get the correct display results and number of pages, but when you switch pages, you can't respond to paging events.
After the tracking program found that the switch page to call pageload every time, I moved DataBind out of is notpostback, pagination can be normal
Shows that the DataGrid is loaded with data every time it is sent back, taking into account that the DataGrid is set to EnableViewState false
The DataGrid data is not preserved, causing the DataGrid to be unbound only after each load to achieve a normal paging status.
Therefore, setting the EnableViewState to true solves the problem.
