制作一个简单的服务器端控制
文章类别：
asp | 发表日期:2008-10-5 20:43:03
2000082805.aspx
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<%@ Register TagPrefix="CJ" Namespace="cjServerControls" %>
<html>
<head>
</head>
<body>
<form method="post" action="2000082605.aspx" runat="server">
<CJ:xmlDocReader listText="au_id" listValue="au_id" runat="server"
path="C:\Inetpub\wwwroot\myASP\tutorials\authors.xml" />
</form>
</body>
</html>
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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<root>
<schema id="DocumentElement" targetNamespace="" xmlns="http://www.w3.org/1999/XMLSchema"
xmlns:xdo="urn:schemas-microsoft-com:xml-xdo" xdo:DataSetName="DocumentElement">
<element name="Table">
<complexType content="elementOnly">
<element name="au_id" type="string"></element>
<element name="au_lname" type="string"></element>
<element name="au_fname" type="string"></element>
<element name="phone" type="string"></element>
<element name="address" minOccurs="0" type="string"></element>
<element name="city" minOccurs="0" type="string"></element>
<element name="state" minOccurs="0" type="string"></element>
<element name="zip" minOccurs="0" type="string"></element>
<element name="contract" type="boolean"></element>
</complexType>
<unique name="Constraint1" xdo:PrimaryKey="True">
<selector>.</selector>
<field>au_id</field>
</unique>
</element>
</schema>
<DocumentElement>
<Table>
<au_id>000-00-0000</au_id>
<au_lname>Doe</au_lname>
<au_fname>John</au_fname>
<phone>foo </phone>
<address>One Microsoft Way</address>
<city>Redmond</city>
<state>CA</state>
<zip>98005</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>000-00-0123</au_id>
<au_lname>Millington</au_lname>
<au_fname>John</au_fname>
<phone>808 555-5555</phone>
<address>One Microsoft Way</address>
<city>Redmond</city>
<state>CA</state>
<zip>98005</zip>
<contract>False</contract>
</Table>
<Table>
<au_id>172-32-1176</au_id>
<au_lname>White</au_lname>
<au_fname>Johnson</au_fname>
<phone>408 496-7223</phone>
<address>10932 Bigge Rd.</address>
<city>Menlo Park</city>
<state>CA</state>
<zip>94025</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>213-46-8915</au_id>
<au_lname>Green</au_lname>
<au_fname>Marjorie</au_fname>
<phone>415 986-7020</phone>
<address>309 63rd St. #411</address>
<city>Oakland</city>
<state>CA</state>
<zip>94618</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>238-95-7766</au_id>
<au_lname>Carson</au_lname>
<au_fname>Cheryl</au_fname>
<phone>415 548-7723</phone>
<address>589 Darwin Ln.</address>
<city>Berkeley</city>
<state>CA</state>
<zip>94705</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>267-41-2394</au_id>
<au_lname>O'Leary</au_lname>
<au_fname>Michael</au_fname>
<phone>408 286-2428</phone>
<address>22 Cleveland Av. #14</address>
<city>San Jose</city>
<state>CA</state>
<zip>95128</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>274-80-9391</au_id>
<au_lname>Straight</au_lname>
<au_fname>Dean</au_fname>
<phone>415 834-2919</phone>
<address>5420 College Av.</address>
<city>Oakland</city>
<state>CA</state>
<zip>94609</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>341-22-1782</au_id>
<au_lname>Smith</au_lname>
<au_fname>Meander</au_fname>
<phone>913 843-0462</phone>
<address>10 Mississippi Dr.</address>
<city>Lawrence</city>
<state>KS</state>
<zip>66044</zip>
<contract>False</contract>
</Table>
<Table>
<au_id>409-56-7008</au_id>
<au_lname>Bennet</au_lname>
<au_fname>Abraham</au_fname>
<phone>415 658-9932</phone>
<address>6223 Bateman St.</address>
<city>Berkeley</city>
<state>CA</state>
<zip>94705</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>427-17-2319</au_id>
<au_lname>Dull</au_lname>
<au_fname>Ann</au_fname>
<phone>415 836-7128</phone>
<address>3410 Blonde St.</address>
<city>Palo Alto</city>
<state>CA</state>
<zip>94301</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>472-27-2349</au_id>
<au_lname>Gringlesby</au_lname>
<au_fname>Burt</au_fname>
<phone>707 938-6445</phone>
<address>PO Box 792</address>
<city>Covelo</city>
<state>CA</state>
<zip>95428</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>486-29-1786</au_id>
<au_lname>Locksley</au_lname>
<au_fname>Charlene</au_fname>
<phone>415 585-4620</phone>
<address>18 Broadway Av.</address>
<city>San Francisco</city>
<state>CA</state>
<zip>94130</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>527-72-3246</au_id>
<au_lname>Greene</au_lname>
<au_fname>Morningstar</au_fname>
<phone>615 297-2723</phone>
<address>22 Graybar House Rd.</address>
<city>Nashville</city>
<state>TN</state>
<zip>37215</zip>
<contract>False</contract>
</Table>
<Table>
<au_id>648-92-1872</au_id>
<au_lname>Blotchet-Halls</au_lname>
<au_fname>Reginald</au_fname>
<phone>503 745-6402</phone>
<address>55 Hillsdale Bl.</address>
<city>Corvallis</city>
<state>OR</state>
<zip>97330</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>672-71-3249</au_id>
<au_lname>Yokomoto</au_lname>
<au_fname>Akiko</au_fname>
<phone>415 935-4228</phone>
<address>3 Silver Ct.</address>
<city>Walnut Creek</city>
<state>CA</state>
<zip>94595</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>712-45-1867</au_id>
<au_lname>del Castillo</au_lname>
<au_fname>Innes</au_fname>
<phone>615 996-8275</phone>
<address>2286 Cram Pl. #86</address>
<city>Ann Arbor</city>
<state>MI</state>
<zip>48105</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>722-51-5454</au_id>
<au_lname>DeFrance</au_lname>
<au_fname>Michel</au_fname>
<phone>219 547-9982</phone>
<address>3 Balding Pl.</address>
<city>Gary</city>
<state>IN</state>
<zip>46403</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>724-08-9931</au_id>
<au_lname>Stringer</au_lname>
<au_fname>Dirk</au_fname>
<phone>415 843-2991</phone>
<address>5420 Telegraph Av.</address>
<city>Oakland</city>
<state>CA</state>
<zip>94609</zip>
<contract>False</contract>
</Table>
<Table>
<au_id>724-80-9391</au_id>
<au_lname>MacFeather</au_lname>
<au_fname>Stearns</au_fname>
<phone>415 354-7128</phone>
<address>44 Upland Hts.</address>
<city>Oakland</city>
<state>CA</state>
<zip>94612</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>756-30-7391</au_id>
<au_lname>Karsen</au_lname>
<au_fname>Livia</au_fname>
<phone>415 534-9219</phone>
<address>5720 McAuley St.</address>
<city>Oakland</city>
<state>CA</state>
<zip>94609</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>807-91-6654</au_id>
<au_lname>Panteley</au_lname>
<au_fname>Sylvia</au_fname>
<phone>301 946-8853</phone>
<address>1956 Arlington Pl.</address>
<city>Rockville</city>
<state>MD</state>
<zip>20853</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>846-92-7186</au_id>
<au_lname>Hunter</au_lname>
<au_fname>Sheryl</au_fname>
<phone>415 836-7128</phone>
<address>3410 Blonde St.</address>
<city>Palo Alto</city>
<state>CA</state>
<zip>94301</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>893-72-1158</au_id>
<au_lname>McBadden</au_lname>
<au_fname>Heather</au_fname>
<phone>707 448-4982</phone>
<address>301 Putnam</address>
<city>Vacaville</city>
<state>CA</state>
<zip>95688</zip>
<contract>False</contract>
</Table>
<Table>
<au_id>899-46-2035</au_id>
<au_lname>Ringer</au_lname>
<au_fname>Anne</au_fname>
<phone>801 826-0752</phone>
<address>67 Seventh Av.</address>
<city>Salt Lake City</city>
<state>UT</state>
<zip>84152</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>998-72-3567</au_id>
<au_lname>Ringer</au_lname>
<au_fname>Albert</au_fname>
<phone>801 826-0752</phone>
<address>67 Seventh Av.</address>
<city>Salt Lake City</city>
<state>UT</state>
<zip>84152</zip>
<contract>True</contract>
</Table>
<Table>
<au_id>999-99-9999</au_id>
<au_lname>Toe</au_lname>
<au_fname>John</au_fname>
<phone>808 444-4444</phone>
<address>21 Microsoft Way</address>
<city>Redwood</city>
<state>CA</state>
<zip>98005</zip>
<contract>False</contract>
</Table>
</DocumentElement>
</root>
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