Cara: Mengikat ke Layanan Web Menggunakan Formulir Windows BindingSource
Jika Anda ingin mengikat kontrol Formulir Windows ke hasil yang diperoleh dari memanggil layanan Web XML, Anda bisa menggunakan BindingSource komponen. Prosedur ini mirip dengan mengikat BindingSource komponen ke jenis. Anda harus membuat proksi sisi klien yang berisi metode dan jenis yang diekspos oleh layanan Web. Anda membuat proksi sisi klien dari layanan Web (.asmx) itu sendiri, atau file Web Services Description Language (WSDL). Selain itu, proksi sisi klien Anda harus mengekspos bidang jenis kompleks yang digunakan oleh layanan Web sebagai properti publik. Anda kemudian mengikat ke BindingSource salah satu jenis yang diekspos di proksi layanan Web.
Untuk membuat dan mengikat proksi sisi klien
Buat Formulir Windows di direktori pilihan Anda, dengan namespace yang sesuai.
BindingSource Tambahkan komponen ke formulir.
Buka prompt perintah Windows Software Development Kit (SDK), dan navigasikan ke direktori yang sama dengan tempat formulir Anda berada.
Menggunakan alat WSDL, masukkan
wsdl
dan URL untuk file .asmx atau WSDL untuk layanan Web, diikuti dengan namespace aplikasi Anda, dan secara opsional bahasa yang Sedang Anda kerjakan.Contoh kode berikut menggunakan layanan Web yang terletak di
http://webservices.eraserver.net/zipcoderesolver/zipcoderesolver.asmx
. Misalnya, untuk jeniswsdl http://webservices.eraserver.net.zipcoderesolver/zipcoderesolver.asmx /n:BindToWebService
C# , atau untuk jeniswsdl http://webservices.eraserver.net.zipcoderesolver/zipcoderesolver.asmx /n:BindToWebService /language:VB
Visual Basic . Meneruskan jalur sebagai argumen ke alat WSDL akan menghasilkan proksi sisi klien di direktori dan namespace yang sama dengan aplikasi Anda, dalam bahasa yang ditentukan. Jika Anda menggunakan Visual Studio, tambahkan file ke proyek Anda.Pilih jenis di proksi sisi klien yang akan diikat.
Ini biasanya merupakan jenis yang dikembalikan oleh metode yang ditawarkan oleh layanan Web. Bidang jenis yang dipilih harus diekspos sebagai properti publik untuk tujuan pengikatan.
[System::SerializableAttribute, System::Xml::Serialization::XmlTypeAttribute( Namespace="http://webservices.eraserver.net/")] public ref class USPSAddress { private: String^ streetField; String^ cityField; String^ stateField; String^ shortZIPField; String^ fullZIPField; public: property String^ Street { String^ get() { return this->streetField; } void set( String^ value ) { this->streetField = value; } } property String^ City { String^ get() { return this->cityField; } void set( String^ value ) { this->cityField = value; } } property String^ State { String^ get() { return this->stateField; } void set( String^ value ) { this->stateField = value; } } property String^ ShortZIP { String^ get() { return this->shortZIPField; } void set( String^ value ) { this->shortZIPField = value; } } property String^ FullZIP { String^ get() { return this->fullZIPField; } void set( String^ value ) { this->fullZIPField = value; } } };
[System.SerializableAttribute, System.Xml.Serialization.XmlTypeAttribute( Namespace="http://webservices.eraserver.net/")] public class USPSAddress { private string streetField; private string cityField; private string stateField; private string shortZIPField; private string fullZIPField; public string Street { get { return this.streetField; } set { this.streetField = value; } } public string City { get { return this.cityField; } set { this.cityField = value; } } public string State { get { return this.stateField; } set { this.stateField = value; } } public string ShortZIP { get { return this.shortZIPField; } set { this.shortZIPField = value; } } public string FullZIP { get { return this.fullZIPField; } set { this.fullZIPField = value; } } }
<System.SerializableAttribute(), _ System.Xml.Serialization.XmlTypeAttribute( _ [Namespace]:="http://webservices.eraserver.net/")> _ Public Class USPSAddress Private streetField As String Private cityField As String Private stateField As String Private shortZIPField As String Private fullZIPField As String Public Property Street() As String Get Return Me.streetField End Get Set(ByVal value As String) Me.streetField = value End Set End Property Public Property City() As String Get Return Me.cityField End Get Set(ByVal value As String) Me.cityField = value End Set End Property Public Property State() As String Get Return Me.stateField End Get Set(ByVal value As String) Me.stateField = value End Set End Property Public Property ShortZIP() As String Get Return Me.shortZIPField End Get Set(ByVal value As String) Me.shortZIPField = value End Set End Property Public Property FullZIP() As String Get Return Me.fullZIPField End Get Set(ByVal value As String) Me.fullZIPField = value End Set End Property End Class
Atur DataSource properti ke BindingSource jenis yang Anda inginkan yang terkandung dalam proksi sisi klien layanan Web.
BindingSource1->DataSource = USPSAddress::typeid;
BindingSource1.DataSource = typeof(USPSAddress);
BindingSource1.DataSource = GetType(USPSAddress)
Untuk mengikat kontrol ke BindingSource yang terikat ke layanan Web
Mengikat kontrol ke BindingSource, meneruskan properti publik dari jenis layanan Web yang Anda inginkan sebagai parameter.
textBox1->DataBindings->Add("Text", this->BindingSource1, "FullZIP", true);
textBox1.DataBindings.Add("Text", this.BindingSource1, "FullZIP", true);
textBox1.DataBindings.Add("Text", Me.BindingSource1, "FullZIP", True)
Contoh
Contoh kode berikut menunjukkan cara mengikat BindingSource komponen ke layanan Web, lalu cara mengikat kotak teks ke BindingSource komponen. Ketika Anda mengklik tombol , metode layanan Web dipanggil dan hasilnya akan muncul di textbox1
.
#using <System.Windows.Forms.dll>
#using <System.dll>
#using <System.Drawing.dll>
#using <System.Web.Services.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Collections::Generic;
using namespace System::ComponentModel;
using namespace System::Drawing;
using namespace System::Windows::Forms;
namespace BindToWebService {
[System::SerializableAttribute, System::Xml::Serialization::XmlTypeAttribute(
Namespace="http://webservices.eraserver.net/")]
public ref class USPSAddress
{
private:
String^ streetField;
String^ cityField;
String^ stateField;
String^ shortZIPField;
String^ fullZIPField;
public:
property String^ Street
{
String^ get()
{
return this->streetField;
}
void set( String^ value )
{
this->streetField = value;
}
}
property String^ City
{
String^ get()
{
return this->cityField;
}
void set( String^ value )
{
this->cityField = value;
}
}
property String^ State
{
String^ get()
{
return this->stateField;
}
void set( String^ value )
{
this->stateField = value;
}
}
property String^ ShortZIP
{
String^ get()
{
return this->shortZIPField;
}
void set( String^ value )
{
this->shortZIPField = value;
}
}
property String^ FullZIP
{
String^ get()
{
return this->fullZIPField;
}
void set( String^ value )
{
this->fullZIPField = value;
}
}
};
[System::Web::Services::WebServiceBindingAttribute(Name="ZipCodeResolverSoap",
Namespace="http://webservices.eraserver.net/")]
public ref class ZipCodeResolver:
public System::Web::Services::Protocols::SoapHttpClientProtocol
{
public:
ZipCodeResolver() : SoapHttpClientProtocol()
{
this->Url =
"http://webservices.eraserver.net/zipcoderesolver/zipcoderesolver.asmx";
}
//''<remarks/>
[System::Web::Services::Protocols::SoapDocumentMethodAttribute
("http://webservices.eraserver.net/CorrectedAddressXml",
RequestNamespace="http://webservices.eraserver.net/",
ResponseNamespace="http://webservices.eraserver.net/",
Use=System::Web::Services::Description::SoapBindingUse::Literal,
ParameterStyle=System::Web::Services::Protocols::SoapParameterStyle::Wrapped)]
USPSAddress^ CorrectedAddressXml(String^ accessCode,
String^ address, String^ city, String^ state)
{
array<Object^>^ results = this->Invoke("CorrectedAddressXml",
gcnew array<Object^>{accessCode, address, city, state});
return ((USPSAddress^) results[0]);
}
//''<remarks/>
System::IAsyncResult^ BeginCorrectedAddressXml(String^ accessCode,
String^ address, String^ city, String^ state,
System::AsyncCallback^ callback, Object^ asyncState)
{
return this->BeginInvoke("CorrectedAddressXml",
gcnew array<Object^>{accessCode, address, city, state}, callback, asyncState);
}
USPSAddress^ EndCorrectedAddressXml(System::IAsyncResult^ asyncResult)
{
array<Object^>^ results = this->EndInvoke(asyncResult);
return ((USPSAddress^) results[0]);
}
};
ref class Form1: public Form
{
public:
[STAThread]
static void Main()
{
Application::EnableVisualStyles();
Application::Run(gcnew Form1());
}
private:
BindingSource^ BindingSource1;
TextBox^ textBox1;
TextBox^ textBox2;
Button^ button1;
public:
Form1()
{
this->Load += gcnew EventHandler(this, &Form1::Form1_Load);
textBox1->Location = System::Drawing::Point(118, 131);
textBox1->ReadOnly = true;
button1->Location = System::Drawing::Point(133, 60);
button1->Click += gcnew EventHandler(this, &Form1::button1_Click);
button1->Text = "Get zipcode";
ClientSize = System::Drawing::Size(292, 266);
Controls->Add(this->button1);
Controls->Add(this->textBox1);
BindingSource1 = gcnew BindingSource();
textBox1 = gcnew TextBox();
textBox2 = gcnew TextBox();
button1 = gcnew Button();
}
private:
void button1_Click(Object^ sender, EventArgs^ e)
{
textBox1->Text = "Calling Web service..";
ZipCodeResolver^ resolver = gcnew ZipCodeResolver();
BindingSource1->Add(resolver->CorrectedAddressXml("0",
"One Microsoft Way", "Redmond", "WA"));
}
public:
void Form1_Load(Object^ sender, EventArgs^ e)
{
BindingSource1->DataSource = USPSAddress::typeid;
textBox1->DataBindings->Add("Text", this->BindingSource1, "FullZIP", true);
}
};
public ref class CorrectedAddressXmlCompletedEventArgs:
public System::ComponentModel::AsyncCompletedEventArgs
{
private:
array<Object^>^ results;
internal:
CorrectedAddressXmlCompletedEventArgs(array<Object^>^ results,
System::Exception^ exception, bool cancelled, Object^ userState) :
AsyncCompletedEventArgs(exception, cancelled, userState)
{
this->results = results;
}
public:
property USPSAddress^ Result
{
USPSAddress^ get()
{
this->RaiseExceptionIfNecessary();
return ((USPSAddress^) this->results[0]);
}
}
delegate void CorrectedAddressXmlCompletedEventHandler(Object^ sender,
CorrectedAddressXmlCompletedEventArgs^ args);
};
}
int main()
{
BindToWebService::Form1::Main();
return 1;
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
namespace BindToWebService {
class Form1: Form
{
[STAThread]
public static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
private BindingSource BindingSource1 = new BindingSource();
private TextBox textBox1 = new TextBox();
private TextBox textBox2 = new TextBox();
private Button button1 = new Button();
public Form1()
{
this.Load += new EventHandler(Form1_Load);
textBox1.Location = new System.Drawing.Point(118, 131);
textBox1.ReadOnly = true;
button1.Location = new System.Drawing.Point(133, 60);
button1.Click += new EventHandler(button1_Click);
button1.Text = "Get zipcode";
ClientSize = new System.Drawing.Size(292, 266);
Controls.Add(this.button1);
Controls.Add(this.textBox1);
}
private void button1_Click(object sender, EventArgs e)
{
textBox1.Text = "Calling Web service..";
ZipCodeResolver resolver = new ZipCodeResolver();
BindingSource1.Add(resolver.CorrectedAddressXml("0",
"One Microsoft Way", "Redmond", "WA"));
}
public void Form1_Load(object sender, EventArgs e)
{
BindingSource1.DataSource = typeof(USPSAddress);
textBox1.DataBindings.Add("Text", this.BindingSource1, "FullZIP", true);
}
}
[System.Web.Services.WebServiceBindingAttribute(Name="ZipCodeResolverSoap",
Namespace="http://webservices.eraserver.net/")]
public class ZipCodeResolver:
System.Web.Services.Protocols.SoapHttpClientProtocol
{
public ZipCodeResolver() : base()
{
this.Url =
"http://webservices.eraserver.net/zipcoderesolver/zipcoderesolver.asmx";
}
//''<remarks/>
[System.Web.Services.Protocols.SoapDocumentMethodAttribute
("http://webservices.eraserver.net/CorrectedAddressXml",
RequestNamespace="http://webservices.eraserver.net/",
ResponseNamespace="http://webservices.eraserver.net/",
Use=System.Web.Services.Description.SoapBindingUse.Literal,
ParameterStyle=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
public USPSAddress CorrectedAddressXml(string accessCode,
string address, string city, string state)
{
object[] results = this.Invoke("CorrectedAddressXml",
new object[]{accessCode, address, city, state});
return ((USPSAddress) results[0]);
}
//''<remarks/>
public System.IAsyncResult BeginCorrectedAddressXml(string accessCode,
string address, string city, string state,
System.AsyncCallback callback, object asyncState)
{
return this.BeginInvoke("CorrectedAddressXml",
new object[]{accessCode, address, city, state}, callback, asyncState);
}
public USPSAddress EndCorrectedAddressXml(System.IAsyncResult asyncResult)
{
object[] results = this.EndInvoke(asyncResult);
return ((USPSAddress) results[0]);
}
}
[System.SerializableAttribute, System.Xml.Serialization.XmlTypeAttribute(
Namespace="http://webservices.eraserver.net/")]
public class USPSAddress
{
private string streetField;
private string cityField;
private string stateField;
private string shortZIPField;
private string fullZIPField;
public string Street
{
get
{
return this.streetField;
}
set
{
this.streetField = value;
}
}
public string City
{
get
{
return this.cityField;
}
set
{
this.cityField = value;
}
}
public string State
{
get
{
return this.stateField;
}
set
{
this.stateField = value;
}
}
public string ShortZIP
{
get
{
return this.shortZIPField;
}
set
{
this.shortZIPField = value;
}
}
public string FullZIP
{
get
{
return this.fullZIPField;
}
set
{
this.fullZIPField = value;
}
}
}
public delegate void CorrectedAddressXmlCompletedEventHandler(object sender,
CorrectedAddressXmlCompletedEventArgs args);
public class CorrectedAddressXmlCompletedEventArgs:
System.ComponentModel.AsyncCompletedEventArgs
{
private object[] results;
internal CorrectedAddressXmlCompletedEventArgs(object[] results,
System.Exception exception, bool cancelled, object userState) :
base(exception, cancelled, userState)
{
this.results = results;
}
public USPSAddress Result
{
get
{
this.RaiseExceptionIfNecessary();
return ((USPSAddress) this.results[0]);
}
}
}
}
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing
Imports System.Windows.Forms
Namespace BindToWebService
Class Form1
Inherits Form
<STAThread()> _
Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub
Private BindingSource1 As New BindingSource()
Private textBox1 As New TextBox()
Private textBox2 As New TextBox()
Private WithEvents button1 As New Button()
Public Sub New()
textBox1.Location = New System.Drawing.Point(118, 131)
textBox1.ReadOnly = True
button1.Location = New System.Drawing.Point(133, 60)
button1.Text = "Get zipcode"
ClientSize = New System.Drawing.Size(292, 266)
Controls.Add(Me.button1)
Controls.Add(Me.textBox1)
End Sub
Private Sub button1_Click(ByVal sender As Object, ByVal e As EventArgs) _
Handles button1.Click
textBox1.Text = "Calling Web service.."
Dim resolver As New ZipCodeResolver()
BindingSource1.Add(resolver.CorrectedAddressXml("0", "One Microsoft Way", "Redmond", "WA"))
End Sub
Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
BindingSource1.DataSource = GetType(USPSAddress)
textBox1.DataBindings.Add("Text", Me.BindingSource1, "FullZIP", True)
End Sub
End Class
<System.Diagnostics.DebuggerStepThroughAttribute(), _
System.ComponentModel.DesignerCategoryAttribute("code"), _
System.Web.Services.WebServiceBindingAttribute(Name:="ZipCodeResolverSoap", _
[Namespace]:="http://webservices.eraserver.net/")> _
Public Class ZipCodeResolver
Inherits System.Web.Services.Protocols.SoapHttpClientProtocol
Private CorrectedAddressXmlOperationCompleted As _
System.Threading.SendOrPostCallback
Public Sub New()
MyBase.New()
Me.Url = _
"http://webservices.eraserver.net/zipcoderesolver/zipcoderesolver.asmx"
End Sub
Public Event CorrectedAddressXmlCompleted As _
CorrectedAddressXmlCompletedEventHandler
<System.Web.Services.Protocols.SoapDocumentMethodAttribute( _
"http://webservices.eraserver.net/CorrectedAddressXml", _
RequestNamespace:="http://webservices.eraserver.net/", _
ResponseNamespace:="http://webservices.eraserver.net/", _
Use:=System.Web.Services.Description.SoapBindingUse.Literal, _
ParameterStyle:=System.Web.Services.Protocols.SoapParameterStyle.Wrapped)> _
Public Function CorrectedAddressXml(ByVal accessCode As String, _
ByVal address As String, ByVal city As String, ByVal state As String) _
As USPSAddress
Dim results() As Object = Me.Invoke("CorrectedAddressXml", _
New Object() {accessCode, address, city, state})
Return CType(results(0), USPSAddress)
End Function
'''<remarks/>
Public Function BeginCorrectedAddressXml(ByVal accessCode As String, _
ByVal address As String, ByVal city As String, ByVal state As String, _
ByVal callback As System.AsyncCallback, ByVal asyncState As Object) _
As System.IAsyncResult
Return Me.BeginInvoke("CorrectedAddressXml", _
New Object() {accessCode, address, city, state}, callback, asyncState)
End Function
Public Function EndCorrectedAddressXml(ByVal asyncResult _
As System.IAsyncResult) As USPSAddress
Dim results() As Object = Me.EndInvoke(asyncResult)
Return CType(results(0), USPSAddress)
End Function
End Class
<System.SerializableAttribute(), _
System.Xml.Serialization.XmlTypeAttribute( _
[Namespace]:="http://webservices.eraserver.net/")> _
Public Class USPSAddress
Private streetField As String
Private cityField As String
Private stateField As String
Private shortZIPField As String
Private fullZIPField As String
Public Property Street() As String
Get
Return Me.streetField
End Get
Set(ByVal value As String)
Me.streetField = value
End Set
End Property
Public Property City() As String
Get
Return Me.cityField
End Get
Set(ByVal value As String)
Me.cityField = value
End Set
End Property
Public Property State() As String
Get
Return Me.stateField
End Get
Set(ByVal value As String)
Me.stateField = value
End Set
End Property
Public Property ShortZIP() As String
Get
Return Me.shortZIPField
End Get
Set(ByVal value As String)
Me.shortZIPField = value
End Set
End Property
Public Property FullZIP() As String
Get
Return Me.fullZIPField
End Get
Set(ByVal value As String)
Me.fullZIPField = value
End Set
End Property
End Class
Public Delegate Sub CorrectedAddressXmlCompletedEventHandler(ByVal sender As Object, _
ByVal args As CorrectedAddressXmlCompletedEventArgs)
Public Class CorrectedAddressXmlCompletedEventArgs
Inherits System.ComponentModel.AsyncCompletedEventArgs
Private results() As Object
Friend Sub New(ByVal results() As Object, ByVal exception As System.Exception, _
ByVal cancelled As Boolean, ByVal userState As Object)
MyBase.New(exception, cancelled, userState)
Me.results = results
End Sub
Public ReadOnly Property Result() As USPSAddress
Get
Me.RaiseExceptionIfNecessary()
Return CType(Me.results(0), USPSAddress)
End Get
End Property
End Class
End Namespace
Mengompilasi Kode
Ini adalah contoh lengkap yang mencakup Main
metode, dan versi kode proksi sisi klien yang dipersingkat.
Contoh ini membutuhkan:
- Referensi ke rakitan System, System.Drawing, System.Web.Services, System.Windows.Forms dan System.Xml.
Baca juga
.NET Desktop feedback
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