Implementation of GridView paging and instances of custom page style functionality

Implementation of GridView paging

 
 Want to be in GridView add  
// Implement paging  
AllowPaging="true" 
//1 Page data 10 line  
PageSize="10" 
//  Events that are triggered when paging  
OnPageIndexChanging="gvwDesignationName_PageIndexChanging" 

In the server event

 
protectedvoid gvwDesignationName_PageIndexChanging(object sender, GridViewPageEventArgs e) 
{ 
gvwDesignationName.PageIndex=e.newIndex; 
bingDesignatioonName(); 
} 

Here I present a common template for displaying pagination.

 
<PagerTemplate> 
 The current first : 
//((GridView)Container.NamingContainer) To get the current control  
<asp:Label ID="LabelCurrentPage" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageIndex + 1 %>"></asp:Label> 
 page / A total of : 
// Gets the total number of paginated pages  
<asp:Label ID="LabelPageCount" runat="server" Text="<%# ((GridView)Container.NamingContainer).PageCount %>"></asp:Label> 
 page  
// If the page is the first page, the connection is not displayed . At the same time corresponding to the built-in identification of the command parameters CommandArgument 
<asp:LinkButton ID="LinkButtonFirstPage" runat="server" CommandArgument="First" CommandName="Page" 
Visible='<%#((GridView)Container.NamingContainer).PageIndex != 0 %>'> Home page </asp:LinkButton> 
<asp:LinkButton ID="LinkButtonPreviousPage" runat="server" CommandArgument="Prev" 
CommandName="Page" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>'> on 1 page </asp:LinkButton> 
// If the page is the last page, the connection is not displayed  
<asp:LinkButton ID="LinkButtonNextPage" runat="server" CommandArgument="Next" CommandName="Page" 
Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'> Under the 1 page </asp:LinkButton> 
<asp:LinkButton ID="LinkButtonLastPage" runat="server" CommandArgument="Last" CommandName="Page" 
Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'> back </asp:LinkButton> 
 Turn to the first  
<asp:TextBox ID="txtNewPageIndex" runat="server" Width="20px" Text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>' /> page  
// There will be CommandArgument Even if you click the button e.newIndex  A value of 3 
<asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-2" 
CommandName="Page" Text="GO" /> 
</PagerTemplate> 

The code in the event should be

 
protected void gvwDesignationName_PageIndexChanging(object sender, GridViewPageEventArgs e) 
{ 
//  Get the control  
GridView theGrid = sender as GridView; 
int newPageIndex = 0; 
if (e.NewPageIndex==-3) 
{ 
// Click on the Go button  
TextBox txtNewPageIndex = null; 
//GridView a DataGrid More API , which can be used to get the paging block BottomPagerRow  or TopPagerRow Of course, it has increased HeaderRow and FooterRow 
GridViewRow pagerRow = theGrid.BottomPagerRow; 
if (pagerRow != null) 
{ 
// get text controls  
txtNewPageIndex = pagerRow.FindControl("txtNewPageIndex") as TextBox; 
} 
if ( txtNewPageIndex!= null) 
{ 
// Get the index  
newPageIndex = int.Parse(txtNewPageIndex.Text) - 1; 
} 
} 
else 
{ 
// Click the other button  
newPageIndex = e.NewPageIndex; 
} 
// Prevent new index overflow  
newPageIndex = newPageIndex < 0 ? 0 : newPageIndex; 
newPageIndex = newPageIndex >= theGrid.PageCount ? theGrid.PageCount - 1 : newPageIndex; 
// Get a new value  
theGrid.PageIndex = newPageIndex; 
// rebind  
bingDesignatioonName(); 
}