<div> text: <asp:TextBox runat="server"></asp:TextBox> <asp:Button runat="server" Text="查 询"/> </div> <div> <asp:GridView runat="server" AutoGenerateColumns="true"></asp:GridView> <uc1:PagerControl runat="server" /> </div>
测试分页控件的后台代码：
private const string dtSourceViewStateKey = "dtSourceViewStateKey";
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
BindData(true);
}
Pager.OnPageChanged += OnPageChanged;
}
private void BindData(bool bindRecordCount)
{
DataTable dtSource = GetDataSource();
var source = dtSource.AsEnumerable();
if (!string.IsNullOrEmpty(txtContent.Text.Trim()))
{
source = source.Where(w => w.Field<string>("text").Contains(txtContent.Text.Trim()));
}
if (bindRecordCount)
{
Pager.RecordCount = source.Count();
Pager.CurrentPageIndex = 1;
Pager.DataBind();
}
gvList.DataSource = source
.Skip((Pager.CurrentPageIndex - 1) * Pager.PageSize)
.Take(Pager.PageSize)
.Select(r => new { id = r["id"].ToString(), text = r["text"].ToString() })
.ToList();
gvList.DataBind();
}
private void OnPageChanged()
{
BindData(false);
}
private DataTable InitDataTable()
{
DataTable dtSource = new DataTable();
DataColumn id = new DataColumn("id");
id.AutoIncrement = true;
id.AutoIncrementSeed = 1;
dtSource.Columns.Add(id);
dtSource.Columns.Add("text");
for (int i = 1; i <= 1000; i++)
{
DataRow dr = dtSource.NewRow();
dr["text"] = "内容" + i;
dtSource.Rows.Add(dr);
}
return dtSource;
}
private DataTable GetDataSource()
{
if (ViewState[dtSourceViewStateKey] == null)
{
ViewState[dtSourceViewStateKey] = InitDataTable();
}
return ViewState[dtSourceViewStateKey] as DataTable;
}
protected void btnQuery_Click(object sender, EventArgs e)
{
BindData(true);
}
在Page_Load中注册翻页后的事件。