在基于Ajax搜索的Web控件上实现分页功能
我目前正在使用带updatemode条件的UpdatePanel构建搜索功能。 这个updatepanel的触发器是我的searchPhrase TextBox。 当TextChanged触发时，我的面板得到更新并显示正确的搜索结果。 然而，我不知道如何实现分页功能，它可以处理我的搜索结果。 我希望在部分页面更新中显示分页链接，并且我希望分页器也更新我的searchResults（只想在一个页面上显示3个结果）。 我如何正确设置它？
这是我的代码（ascx）
<div class="filterBox">
<asp:PlaceHolder ID="filterOnePlaceholder"
RUNAT = “服务器”>
<div class="filterBox">
<asp:PlaceHolder ID="filterTwoPlaceholder"
runat =“server”> PaginaMarker DIV：
<script type="text/javascript">
function ClientCallbackFunction(args)
{
}
</script>
<asp:Button ID="btnBackwards" Text="Vorige"
OnClick =“MyServerCall（this.value）”/>
<asp:DropDownList ID="DropDownListChoice" runat="server"
onChange =“MyServerCall（this.value）”>选择1选择2选择3选择4
（CS）
//需要存储searchResults列表validSearchResults = new List（）;
private List<string> listOneSelectedItems = new
名单（）; 私人列表listTwoSelectedItems =新列表（）;
private string currentCategoryPath = string.Empty;
private string _callbackArgs;
/// <summary>
/// Raises the <see cref="E:System.Web.UI.Control.Init"/>
事件。 /// ///包含事件数据的对象。 protected override void OnInit（EventArgs e）{base.OnInit（e）;
this.UpdateSelectedItemLists();
this.currentCategoryPath = Sitecore.Context.Item.Paths.FullPath;
this.searchPhrase.TextChanged += new
事件处理程序（searchPhrase_TextChanged）;
this.filterOneCbl.SelectedIndexChanged
+ =新的EventHandler（filterOneCbl_SelectedIndexChanged）; this.filterTwoCbl.SelectedIndexChanged + = new EventHandler（filterTwoCbl_SelectedIndexChanged）; this.ProductRepeater.ItemDataBound + = new RepeaterItemEventHandler（ProductRepeater_ItemDataBound）; }
private void UpdateScreen()
{
// update the list of selectedItems for use with the
从索引中选择新的项目this.UpdateSelectedItemLists（）; this.GetSearchResults（）;
ProductRepeater.DataSource = validSearchResults;
ProductRepeater.DataBind();
ProductenUpdate.Update();
}
void btnSearch_Click(object sender, EventArgs e)
{
// update the list of selectedItems for use with the
从索引中选择新的项目this.UpdateSelectedItemLists（）; this.GetSearchResults（）;
ProductRepeater.DataSource = validSearchResults;
ProductRepeater.DataBind();
ProductenUpdate.Update();
}
private void ProductRepeater_ItemDataBound(object
sender，RepeaterItemEventArgs e）{Item dataItem =（Item）e.Item.DataItem;
// if there is a dataItem
if (dataItem != null)
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType
== ListItemType.Item）{Sitecore.Web.UI.WebControls.Text Titel =（Sitecore.Web.UI.WebControls.Text）e.Item.FindControl（“Titel”）; Sitecore.Web.UI.WebControls.Text Auteur =（Sitecore.Web.UI.WebControls.Text）e.Item.FindControl（“Auteur”）; Sitecore.Web.UI.WebControls.Text Intro =（Sitecore.Web.UI.WebControls.Text）e.Item.FindControl（“Intro”）; Sitecore.Web.UI.WebControls.Image Thumb =（Sitecore.Web.UI.WebControls.Image）e.Item.FindControl（“Thumb”）;
if (Thumb != null)
{
Thumb.Item = dataItem;
}
if (Titel != null)
{
Titel.Item = dataItem;
}
if (Auteur != null)
{
Auteur.Item = dataItem;
}
if (Intro != null)
{
Intro.Item = dataItem;
}
}
}
}
/// <summary>
/// Handles the TextChanged event of the searchPhrase control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance
包含事件数据。 private void searchPhrase_TextChanged（object sender，EventArgs e）{this.UpdateScreen（）; }
/// <summary>
/// Handles the SelectedIndexChanged event of the
filterTwoCbl控制。 /// ///事件的来源。 ///包含事件数据的实例。 private void filterTwoCbl_SelectedIndexChanged（object sender，EventArgs e）{this.UpdateScreen（）; }
/// <summary>
/// Handles the SelectedIndexChanged event of the
filterOneCbl控件。 /// ///事件的来源。 ///包含事件数据的实例。 private void filterOneCbl_SelectedIndexChanged（object sender，EventArgs e）{this.UpdateScreen（）; }
/// <summary>
/// Updates the selected item lists.
/// </summary>
private void UpdateSelectedItemLists()
{
foreach (ListItem thisItem in filterOneCbl.Items)
{
if (thisItem.Selected)
{
if (!listOneSelectedItems.Contains(thisItem.Value.ToUpper()))
{
listOneSelectedItems.Add(thisItem.Value.ToUpper());
}
}
}
foreach (ListItem thisItem in filterTwoCbl.Items)
{
if (thisItem.Selected)
{
if (!listTwoSelectedItems.Contains(thisItem.Value.ToUpper()))
{
listTwoSelectedItems.Add(thisItem.Value.ToUpper());
}
}
}
}
/// <summary>
/// Gets the search results.
/// </summary>
private void GetSearchResults()
{
SearchResultRetreiver retriever = new
SearchResultRetreiver（ “productenSearch”）; IndexSearcher搜索器= null;
Hits mySearchResults = retriever.GetSearchResults(searchPhrase.Text.Trim(),
ref搜索者）;
if (mySearchResults != null)
{
for (int i = 0; i < mySearchResults.Length(); i++)
{
Item newItem = Sitecore.Data.Indexing.Index.GetItem(mySearchResults.Doc(i),
Sitecore.Context.Database）; string itemTitel = SitecoreHelper.ShowItemTitel（newItem）; bool addItem = true; if（itemTitel.StartsWith（“$”））addItem = false; if（itemTitel.StartsWith（“_”））addItem = false;
if (addItem)
{
this.validSearchResults.Add(newItem);
}
}
}
}
private void FilterSearchResults()
{
}
/// <summary>
/// Handles the Load event of the Page control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance
包含事件数据。 protected void Page_Load（object sender，EventArgs e）{Item contextItem = Sitecore.Context.Item; Item subwebsiteItem = contextItem.Axes.GetAncestors（）。其中（c => c.Axes.Level == 4）.FirstOrDefault（）;
Sitecore.Data.Fields.CheckboxField
filterOneSelected = subwebsiteItem.Fields [“Filter1Actief”]; Sitecore.Data.Fields.CheckboxField filterTwoSelected = subwebsiteItem.Fields [“Filter2Actief”];
if (filterOneSelected.Checked)
{
TitelTwo.Item = subwebsiteItem;
}
if (filterTwoSelected.Checked)
{
TitelOne.Item = subwebsiteItem;
}
if (!Page.IsPostBack)
{
string callbackRef = Page.ClientScript.GetCallbackEventReference(this,
“args”，“ClientCallbackFunction”，“”）;
string callbackScript = "function MyServerCall(args)" +
"{" + callbackRef + "}";
Page.ClientScript.RegisterClientScriptBlock(this.GetType(),
“MyServerCall”，callbackScript，true）;
filterOnePlaceholder.Visible = false;
filterTwoPlaceholder.Visible = false;
if (subwebsiteItem != null)
{
if (filterOneSelected.Checked)
{
filterOnePlaceholder.Visible = true;
Item filterOneLocation =
Sitecore.Context.Database.GetItem（subwebsiteItem.Paths.FullPath +“/ Filters / Filter1”）; 列表filterOneList = new List（）;
filterOneList = filterOneLocation.GetChildren().Where(c
=> c.TemplateName.ToLower（）==“filter”）。ToList（）;
foreach (Item filterItem in filterOneList)
{
ListItem thisItem = new
ListItem（filterItem [“Naam”]，filterItem.ID.ToGuid（）。ToString（））; this.filterOneCbl.Items.Add（thisItem）; }}
if (filterTwoSelected.Checked)
{
filterTwoPlaceholder.Visible = true;
Item filterTwoLocation =
Sitecore.Context.Database.GetItem（subwebsiteItem.Paths.FullPath +“/ Filters / Filter2”）; List filterTwoList = new List（）;
filterTwoList = filterTwoLocation.GetChildren().Where(c
=> c.TemplateName.ToLower（）==“filter”）。ToList（）;
foreach (Item filterItem in filterTwoList)
{
ListItem thisItem = new
ListItem（filterItem [“Naam”]，filterItem.ID.ToGuid（）。ToString（））; this.filterTwoCbl.Items.Add（thisItem）; }}}}
}
#region ICallbackEventHandler Members
/// <summary>
/// Returns the results of a callback event that targets a control.
/// </summary>
/// <returns>The result of the callback.</returns>
public string GetCallbackResult()
{
return this._callbackArgs;
}
/// <summary>
/// Processes a callback event that targets a control.
/// </summary>
/// <param name="eventArgument">A string that
表示传递给事件处理程序的事件参数。 public void RaiseCallbackEvent（string eventArgument）{this._callbackArgs = eventArgument; }
请看一看，并告诉我如何让我的解决方案为寻呼机工作。
我通过引入一个GetList（）方法和一个在彼此之后被调用的Update（）方法来解决这个问题。 在de GetList（）方法我会设置项目的总量，并在更新方法，然后我会调用另一个方法，将创建寻呼机。 这解决了我的问题。
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