制作一个简单的服务器端控制 -pc6资讯

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制作一个简单的服务器端控制 时间：2004/10/7 19:18:00来源：本站整理作者：蓝点我要评论(0)

2000082805.aspx

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<%@ register="" tagprefix="CJ" namespace="cjServerControls">

<CJ:xmlDocReader listText="au_id" listValue="au_id" runat="server"

path="C:\Inetpub\wwwroot\myASP\tutorials\authors.xml" />

2000082805a.cs

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using System;

using System.Data;

using System.IO;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace cjServerControls

{

public class xmlDocReader : Control, INamingContainer

{

string _xmlPath;

string _listID;

string _listValue;

public string Path

{

get { return _xmlPath; }

set { _xmlPath = value; }

}

public string listText

{

get { return _listID; }

set { _listID = value; }

}

public string listValue

{

get {return _listValue; }

set {_listValue = value; }

}

//Were are creating a member here so we can access it throughout the class

DropDownList _DDL;

DataGrid _DG;

FileStream fs;

StreamReader sr;

DataSet ds;

protected override void PreRender()

{

if (Page.IsPostBack) {

DataView dv = new DataView(ds.Tables[0]);

dv.RowFilter = listValue + "='" + _DDL.SelectedItem.Text + "'";

_DG = new DataGrid();

_DG.DataSource = dv;

_DG.DataBind();

Controls.Add(_DG);

}

}

protected override void CreateChildControls()

{

fs = new FileStream(Path, FileMode.Open, FileAccess.Read);

sr = new StreamReader(fs);

ds = new DataSet();

ds.ReadXml(sr);

fs.Close();

_DDL = new DropDownList();

_DDL.DataTextField = listText;

_DDL.DataValueField = listValue;

_DDL.AutoPostBack = true;

_DDL.DataSource = ds.Tables[0].DefaultView;

_DDL.DataBind();

Controls.Add(_DDL);

}

}

}

authors.xml

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<schema id="DocumentElement" targetNamespace="" xmlns="http://www.w3.org/1999/XMLSchema"

xmlns:xdo="urn:schemas-microsoft-com:xml-xdo" xdo:DataSetName="DocumentElement">



























            .

            au_id







        000-00-0000

        Doe

        John

        foo

        One Microsoft Way

        Redmond

        CA

        98005

        True

        000-00-0123

        Millington

        John

        808 555-5555

        One Microsoft Way

        Redmond

        CA

        98005

        False

        172-32-1176

        White

        Johnson

        408 496-7223

        10932 Bigge Rd.

        Menlo Park

        CA

        94025

        True

        213-46-8915

        Green

        Marjorie

        415 986-7020

        309 63rd St. #411

        Oakland

        CA

        94618

        True

        238-95-7766

        Carson

        Cheryl

        415 548-7723

        589 Darwin Ln.

        Berkeley

        CA

        94705

        True

        267-41-2394

        O'Leary

        Michael

        408 286-2428

        22 Cleveland Av. #14

        San Jose

        CA

        95128

        True

        274-80-9391

        Straight

        Dean

        415 834-2919

        5420 College Av.

        Oakland

        CA

        94609

        True

        341-22-1782

        Smith

        Meander

        913 843-0462

        10 Mississippi Dr.

        Lawrence

        KS

        66044

        False

        409-56-7008

        Bennet

        Abraham

        415 658-9932

        6223 Bateman St.

        Berkeley

        CA

        94705

        True

        427-17-2319

        Dull

        Ann

        415 836-7128

        3410 Blonde St.

        Palo Alto

        CA

        94301

        True

        472-27-2349

        Gringlesby

        Burt

        707 938-6445

        PO Box 792

        Covelo

        CA

        95428

        True

        486-29-1786

        Locksley

        Charlene

        415 585-4620

        18 Broadway Av.

        San Francisco

        CA

        94130

        True

        527-72-3246

        Greene

        Morningstar

        615 297-2723

        22 Graybar House Rd.

        Nashville

        TN

        37215

        False

        648-92-1872

        Blotchet-Halls

        Reginald

        503 745-6402

        55 Hillsdale Bl.

        Corvallis

        OR

        97330

        True

        672-71-3249

        Yokomoto

        Akiko

        415 935-4228

        3 Silver Ct.

        Walnut Creek

        CA

        94595

        True

        712-45-1867

        del Castillo

        Innes

        615 996-8275

        2286 Cram Pl. #86

        Ann Arbor

        MI

        48105

        True

        722-51-5454

        DeFrance

        Michel

        219 547-9982

        3 Balding Pl.

        Gary

        IN

        46403

        True

        724-08-9931

        Stringer

        Dirk

        415 843-2991

        5420 Telegraph Av.

        Oakland

        CA

        94609

        False

        724-80-9391

        MacFeather

        Stearns

        415 354-7128

        44 Upland Hts.

        Oakland

        CA

        94612

        True

        756-30-7391

        Karsen

        Livia

        415 534-9219

        5720 McAuley St.

        Oakland

        CA

        94609

        True

        807-91-6654

        Panteley

        Sylvia

        301 946-8853

        1956 Arlington Pl.

        Rockville

        MD

        20853

        True

        846-92-7186

        Hunter

        Sheryl

        415 836-7128

        3410 Blonde St.

        Palo Alto

        CA

        94301

        True

        893-72-1158

        McBadden

        Heather

        707 448-4982

        301 Putnam

        Vacaville

        CA

        95688

        False

        899-46-2035

        Ringer

        Anne

        801 826-0752

        67 Seventh Av.

        Salt Lake City

        UT

        84152

        True

        998-72-3567

        Ringer

        Albert

        801 826-0752

        67 Seventh Av.

        Salt Lake City

        UT

        84152

        True

        999-99-9999

        Toe

        John

        808 444-4444

        21 Microsoft Way

        Redwood

        CA

        98005

        False

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