因为项目中要用, 而AspNetPager又必须要用商业授权, 所以干脆自己先写个用了.
[DefaultProperty("Text")]
[ToolboxData("<{0}:WebFormsPager runat=server></{0}:WebFormsPager>")]
public class WebFormsPager : WebControl, IPostBackEventHandler
{
#region Property
[Bindable(true)]
[Category("Appearance")]
[DefaultValue("10")]
[Localizable(true)]
public int PageSize
{
get
{
int pageSize = 0;
object o = ViewState["PageSize"];
if (o == null)
pageSize = 1;
else
int.TryParse(o.ToString(), out pageSize);
return pageSize;
}
set
{
ViewState["PageSize"] = value;
}
}
[DefaultValue("1")]
public int CurrentPageIndex
{
get
{
int curPageIndex = 0;
object o = ViewState["CurrentPageIndex"];
if (o == null)
curPageIndex = 1;
else
int.TryParse(o.ToString(), out curPageIndex);
return curPageIndex;
}
set
{
ViewState["CurrentPageIndex"] = value;
}
}
public int RecordCount
{
get
{
int curPageIndex = 0;
object o = ViewState["RecordCount"];
if (o == null)
curPageIndex = 1;
else
int.TryParse(o.ToString(), out curPageIndex);
return curPageIndex;
}
set
{
ViewState["RecordCount"] = value;
}
}
public int PageCount
{
get
{
return (RecordCount / PageSize) + (RecordCount % PageSize > 0 ? 1 : 0);
}
}
#endregion
private static readonly object ClickKey = new object();
public event EventHandler PageChanged
{
add
{
Events.AddHandler(ClickKey, value);
}
remove
{
Events.RemoveHandler(ClickKey, value);
}
}
protected virtual void OnClick(EventArgs e)
{
EventHandler clickEventDelegate = (EventHandler)Events[ClickKey];
if (clickEventDelegate != null)
{
clickEventDelegate(this, e);
}
}
protected override void RenderContents(HtmlTextWriter output)
{
if (this.CurrentPageIndex != 1)
{
AddHypeLink(output, "<<", LinkButtonDescriminate.FirstButton);
AddHypeLink(output, "<", LinkButtonDescriminate.PreviousButton);
}
if (this.CurrentPageIndex != this.PageCount)
{
AddHypeLink(output, ">", LinkButtonDescriminate.NextButton);
AddHypeLink(output, ">>", LinkButtonDescriminate.LastButton);
}
output.Write(string.Format("{0}/{1}", this.CurrentPageIndex, this.PageCount));
}
void AddHypeLink(HtmlTextWriter output, string linkName, LinkButtonDescriminate discriminate)
{
output.Write(string.Format("<a href=\"{0}\" title=\"Move to {2} page\"> {1} </a>", Page.ClientScript.GetPostBackClientHyperlink(this, discriminate.ToString()), linkName, discriminate.ToString().Replace("Button", string.Empty)));
}
public void RaisePostBackEvent(string eventArgument)
{
LinkButtonDescriminate eventArg = LinkButtonDescriminate.DefaultValue;
Enum.TryParse(eventArgument, out eventArg);
switch (eventArg)
{
case LinkButtonDescriminate.FirstButton:
this.CurrentPageIndex = 1;
break;
case LinkButtonDescriminate.PreviousButton:
this.CurrentPageIndex--;
break;
case LinkButtonDescriminate.NextButton:
this.CurrentPageIndex++;
break;
case LinkButtonDescriminate.LastButton:
this.CurrentPageIndex = this.PageCount;
break;
default:
break;
}
OnClick(EventArgs.Empty);
}
}
public enum LinkButtonDescriminate
{
DefaultValue,
FirstButton,
PreviousButton,
NextButton,
LastButton
}
调用方式:
前台代码
<%@ Register Assembly="DemoControl" Namespace="DemoControl" TagPrefix="cc1" %>
<cc1:WebFormsPager ID="WebFormsPager1" runat="server" PageSize="10"
onpagechanged="WebFormsPager1_PageChanged" />
后台代码
private void BindGridView()
{
this.WebFormsPager1.RecordCount = MockData.GetData().Count;
this.gvTest.DataSource = MockData.GetData().Skip(this.WebFormsPager1.PageSize * (this.WebFormsPager1.CurrentPageIndex - 1)).Take(this.WebFormsPager1.PageSize);
this.gvTest.DataBind();
}
protected void WebFormsPager1_PageChanged(object sender, EventArgs e)
{
BindGridView();
}
因为时间的原因,文章未排版。
参考文章: http://www.cnblogs.com/clingingboy/archive/2006/08/02/466180.html