给上次的DataGrid分页增加些功能!
类别: ASP.NET教程 
<html>
<script language=\"C#\" runat=\"server\">
ICollection CreateDataSource() {
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn(\"IntegerValue\", typeof(Int32)));
dt.Columns.Add(new DataColumn(\"StringValue\", typeof(string)));
dt.Columns.Add(new DataColumn(\"DateTimeValue\", typeof(string)));
dt.Columns.Add(new DataColumn(\"BoolValue\", typeof(bool)));
for (int i = 0; i < 200; i++) {
dr = dt.NewRow();
dr[0] = i;
dr[1] = \"Item \" + Int32.ToString(i);
dr[2] = DateTime.Now.ToShortDateString();
dr[3] = (i % 2 != 0) ? true : false;
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
return dv;
}
void Page_Load(Object sender, EventArgs e) {
if (chk1.Checked) {
MyDataGrid.PagerStyle.Visible=true;
}
else {
MyDataGrid.PagerStyle.Visible=false;
}
BindGrid();
}
void PagerButtonClick(Object sender, EventArgs e) {
//used by external paging UI
String arg = ((LinkButton)sender).CommandArgument;
switch(arg)
{
case (\"next\"):
if (MyDataGrid.CurrentPageIndex < (MyDataGrid.PageCount - 1))
MyDataGrid.CurrentPageIndex ++;
break;
case (\"prev\"):
if (MyDataGrid.CurrentPageIndex > 0)
MyDataGrid.CurrentPageIndex --;
break;
case (\"last\"):
MyDataGrid.CurrentPageIndex = (MyDataGrid.PageCount - 1);
break;
default:
//page number
MyDataGrid.CurrentPageIndex = arg.ToInt32();
break;
}
BindGrid();
}
void MyDataGrid_Page(Object sender, DataGridPageChangedEventArgs e) {
//used by built-in pager. CurrentPageIndex already set
BindGrid();
}
void BindGrid() {
MyDataGrid.DataSource = CreateDataSource();
MyDataGrid.DataBind();
ShowStats();
}
void ShowStats() {
lblCurrentIndex.Text = \"CurrentPageIndex is \" + MyDataGrid.CurrentPageIndex;
lblPageCount.Text = \"PageCount is \" + MyDataGrid.PageCount;
}
</script>
<body>
<h3><font face=\"Verdana\">Providing Alternate Paging UI</font></h3>
<form runat=server>
<ASP:DataGrid id=\"MyDataGrid\" runat=\"server\"
AllowPaging=\"True\"
PageSize=\"10\"
PagerStyle-Mode=\"NumericPages\"
PagerStyle-HorizontalAlign=\"Right\"
OnPageIndexChanged=\"MyDataGrid_Page\"
BorderColor=\"black\"
BorderWidth=\"1\"
GridLines=\"Both\"
CellPadding=\"3\"
CellSpacing=\"0\"
Font-Name=\"Verdana\"
Font-Size=\"8pt\"
HeaderStyle-BackColor=\"#aaaadd\"
AlternatingItemStyle-BackColor=\"#eeeeee\"
/>
<p>
<asp:LinkButton id=\"btnPrev\" runat=\"server\"
Text=\"Previous page\"
CommandArgument=\"prev\"
ForeColor=\"navy\"
Font-Name=\"verdana\" Font-size=\"8pt\"
OnClick=\"PagerButtonClick\"
/>
<asp:LinkButton id=\"btnNext\" runat=\"server\"
Text=\"Next page\"
CommandArgument=\"next\"
ForeColor=\"navy\"
Font-Name=\"verdana\" Font-size=\"8pt\"
OnClick=\"PagerButtonClick\"
/>
<asp:LinkButton id=\"btnPage8\" runat=\"server\"
Text=\"Go to Page 8\"
CommandArgument=\"7\"
ForeColor=\"navy\"
Font-Name=\"verdana\" Font-size=\"8pt\"
OnClick=\"PagerButtonClick\"
/>
<asp:LinkButton id=\"btnFirst\" runat=\"server\"
Text=\"Go to the first page\"
CommandArgument=\"0\"
ForeColor=\"navy\"
Font-Name=\"verdana\" Font-size=\"8pt\"
OnClick=\"PagerButtonClick\"
/>
<asp:LinkButton id=\"btnLast\" runat=\"server\"
Text=\"Go to the last page\"
CommandArgument=\"last\"
ForeColor=\"navy\"
Font-Name=\"verdana\" Font-size=\"8pt\"
OnClick=\"PagerButtonClick\"
/>
<p>
<asp:Checkbox id=\"chk1\" runat=\"server\"
Text=\"Show built-in pager\"
Font-Name=\"Verdana\"
Font-Size=\"8pt\"
AutoPostBack=\"true\"
/>
<p>
<table bgcolor=\"#eeeeee\" cellpadding=\"6\"><tr><td nowrap><font face=\"Verdana\" size=\"-2\">
<asp:Label id=\"lblCurrentIndex\" runat=\"server\" /><br>
<asp:Label id=\"lblPageCount\" runat=\"server\" /><br>
</font></td></tr></table>
</form>
</body>
</html>
作者:jspfuns
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