对于常规的ComboBox，我将使用以下代码停用选择更改。
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.util.Iterator;
import java.util.Map;
import java.util.StringTokenizer;
import java.util.Map.Entry;
import javax.xml.soap.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpHeaders;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.util.CollectionUtils;
import org.springframework.util.MimeTypeUtils;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;
import org.springframework.ws.InvalidXmlException;
import org.springframework.ws.soap.SoapMessageCreationException;
import org.springframework.ws.soap.SoapMessageFactory;
import org.springframework.ws.soap.SoapVersion;
import org.springframework.ws.soap.saaj.SaajSoapMessage;
import org.springframework.ws.soap.saaj.support.SaajUtils;
import org.springframework.ws.transport.TransportInputStream;
import org.xml.sax.SAXParseException;
/*Copy of class SaajSoapMessageFactory to override method createWebServiceMessage(InputStream inputStream)*/
public class DualProtocolSaajSoapMessageFactory implements SoapMessageFactory, InitializingBean {
private static final Log logger = LogFactory.getLog(DualProtocolSaajSoapMessageFactory.class);
private MessageFactory messageFactory;
private String messageFactoryProtocol;
private boolean langAttributeOnSoap11FaultString = true;
private Map<String, ?> messageProperties;
MessageFactory messageFactory11;
MessageFactory messageFactory12;
public DualProtocolSaajSoapMessageFactory() {
super();
try {
messageFactory11 = MessageFactory.newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
messageFactory12 = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL);
} catch (Exception ex) {
throw new SoapMessageCreationException("Could not create SAAJ MessageFactory: " + ex.getMessage(), ex);
}
}
public DualProtocolSaajSoapMessageFactory(MessageFactory messageFactory) {
this.messageFactory = messageFactory;
}
public MessageFactory getMessageFactory() {
return this.messageFactory;
}
public void setMessageFactory(MessageFactory messageFactory) {
this.messageFactory = messageFactory;
}
public void setMessageProperties(Map<String, ?> messageProperties) {
this.messageProperties = messageProperties;
}
public void setLangAttributeOnSoap11FaultString(boolean langAttributeOnSoap11FaultString) {
this.langAttributeOnSoap11FaultString = langAttributeOnSoap11FaultString;
}
public void setSoapVersion(SoapVersion version) {
if (SaajUtils.getSaajVersion() >= 2) {
if (SoapVersion.SOAP_11 == version) {
this.messageFactoryProtocol = "SOAP 1.1 Protocol";
} else {
if (SoapVersion.SOAP_12 != version) {
throw new IllegalArgumentException("Invalid version [" + version + "]. Expected the SOAP_11 or SOAP_12 constant");
}
this.messageFactoryProtocol = "SOAP 1.2 Protocol";
}
} else if (SoapVersion.SOAP_11 != version) {
throw new IllegalArgumentException("SAAJ 1.1 and 1.2 only support SOAP 1.1");
}
}
public void afterPropertiesSet() {
if (this.messageFactory == null) {
try {
if (SaajUtils.getSaajVersion() >= 2) {
if (!StringUtils.hasLength(this.messageFactoryProtocol)) {
this.messageFactoryProtocol = "SOAP 1.1 Protocol";
}
if (logger.isInfoEnabled()) {
logger.info("Creating SAAJ 1.3 MessageFactory with " + this.messageFactoryProtocol);
}
this.messageFactory = MessageFactory.newInstance(this.messageFactoryProtocol);
} else if (SaajUtils.getSaajVersion() == 1) {
logger.info("Creating SAAJ 1.2 MessageFactory");
this.messageFactory = MessageFactory.newInstance();
} else {
if (SaajUtils.getSaajVersion() != 0) {
throw new IllegalStateException("SaajSoapMessageFactory requires SAAJ 1.1, which was not found on the classpath");
}
logger.info("Creating SAAJ 1.1 MessageFactory");
this.messageFactory = MessageFactory.newInstance();
}
} catch (NoSuchMethodError var2) {
throw new SoapMessageCreationException("Could not create SAAJ MessageFactory. Is the version of the SAAJ specification interfaces [" + SaajUtils.getSaajVersionString() + "] the same as the version supported by the application server?", var2);
} catch (SOAPException var3) {
throw new SoapMessageCreationException("Could not create SAAJ MessageFactory: " + var3.getMessage(), var3);
}
}
if (logger.isDebugEnabled()) {
logger.debug("Using MessageFactory class [" + this.messageFactory.getClass().getName() + "]");
}
}
public SaajSoapMessage createWebServiceMessage() {
try {
SOAPMessage saajMessage = this.messageFactory.createMessage();
this.postProcess(saajMessage);
return new SaajSoapMessage(saajMessage, this.langAttributeOnSoap11FaultString, this.messageFactory);
} catch (SOAPException var2) {
throw new SoapMessageCreationException("Could not create empty message: " + var2.getMessage(), var2);
}
}
/*Override default property oenter code heref createWebServiceMessage*/
public SaajSoapMessage createWebServiceMessage(InputStream inputStream) throws IOException {
MimeHeaders mimeHeaders = this.parseMimeHeaders(inputStream);
try {
inputStream = checkForUtf8ByteOrderMark(inputStream);
SOAPMessage saajMessage = null;
if (mimeHeaders.getHeader(HttpHeaders.CONTENT_TYPE)[0].contains(MimeTypeUtils.TEXT_XML_VALUE)) {
saajMessage = messageFactory11.createMessage(mimeHeaders, inputStream);
} else {
saajMessage = messageFactory12.createMessage(mimeHeaders, inputStream);
}
saajMessage.getSOAPPart().getEnvelope();
this.postProcess(saajMessage);
return new SaajSoapMessage(saajMessage, this.langAttributeOnSoap11FaultString, this.messageFactory);
} catch (SOAPException var7) {
String contentType = StringUtils.arrayToCommaDelimitedString(mimeHeaders.getHeader("Content-Type"));
if (contentType.contains("startinfo")) {
contentType = contentType.replace("startinfo", "start-info");
mimeHeaders.setHeader("Content-Type", contentType);
try {
SOAPMessage saajMessage = this.messageFactory.createMessage(mimeHeaders, inputStream);
this.postProcess(saajMessage);
return new SaajSoapMessage(saajMessage, this.langAttributeOnSoap11FaultString);
} catch (SOAPException var6) {
}
}
SAXParseException parseException = this.getSAXParseException(var7);
if (parseException != null) {
throw new InvalidXmlException("Could not parse XML", parseException);
} else {
throw new SoapMessageCreationException("Could not create message from InputStream: " + var7.getMessage(), var7);
}
}
}
private SAXParseException getSAXParseException(Throwable ex) {
if (ex instanceof SAXParseException) {
return (SAXParseException)ex;
} else {
return ex.getCause() != null ? this.getSAXParseException(ex.getCause()) : null;
}
}
private MimeHeaders parseMimeHeaders(InputStream inputStream) throws IOException {
MimeHeaders mimeHeaders = new MimeHeaders();
if (inputStream instanceof TransportInputStream) {
TransportInputStream transportInputStream = (TransportInputStream)inputStream;
Iterator headerNames = transportInputStream.getHeaderNames();
while(headerNames.hasNext()) {
String headerName = (String)headerNames.next();
Iterator headerValues = transportInputStream.getHeaders(headerName);
while(headerValues.hasNext()) {
String headerValue = (String)headerValues.next();
StringTokenizer tokenizer = new StringTokenizer(headerValue, ",");
while(tokenizer.hasMoreTokens()) {
mimeHeaders.addHeader(headerName, tokenizer.nextToken().trim());
}
}
}
}
return mimeHeaders;
}
private InputStream checkForUtf8ByteOrderMark(InputStream inputStream) throws IOException {
PushbackInputStream pushbackInputStream = new PushbackInputStream(new BufferedInputStream(inputStream), 3);
byte[] bytes = new byte[3];
int bytesRead;
int n;
for(bytesRead = 0; bytesRead < bytes.length; bytesRead += n) {
n = pushbackInputStream.read(bytes, bytesRead, bytes.length - bytesRead);
if (n <= 0) {
break;
}
}
if (bytesRead > 0 && !this.isByteOrderMark(bytes)) {
pushbackInputStream.unread(bytes, 0, bytesRead);
}
return pushbackInputStream;
}
private boolean isByteOrderMark(byte[] bytes) {
return bytes.length == 3 && bytes[0] == -17 && bytes[1] == -69 && bytes[2] == -65;
}
protected void postProcess(SOAPMessage soapMessage) throws SOAPException {
if (!CollectionUtils.isEmpty(this.messageProperties)) {
Iterator var2 = this.messageProperties.entrySet().iterator();
while(var2.hasNext()) {
Entry<String, ?> entry = (Entry)var2.next();
soapMessage.setProperty((String)entry.getKey(), entry.getValue());
}
}
if ("SOAP 1.1 Protocol".equals(this.messageFactoryProtocol)) {
MimeHeaders headers = soapMessage.getMimeHeaders();
if (ObjectUtils.isEmpty(headers.getHeader("SOAPAction"))) {
headers.addHeader("SOAPAction", "\"\"");
}
}
}
public String toString() {
StringBuilder builder = new StringBuilder("SaajSoapMessageFactory[");
builder.append(SaajUtils.getSaajVersionString());
if (SaajUtils.getSaajVersion() >= 2) {
builder.append(',');
builder.append(this.messageFactoryProtocol);
}
builder.append(']');
return builder.toString();
}
}
但是，当我的ComboBox位于DataTemplate中时，我无法按名称访问ComboBox，因此，我无法关闭更改的选择。 怎样才能像前面的代码中那样停用ComboBox CbbTestTwo，但是如何从下面的代码中的DataTemplate中停用它呢？
<ComboBox Name="CbbTest" SelectionChanged="CbbTest_SelectionChanged"></ComboBox>
CbbTest.SelectionChanged -= new SelectionChangedEventHandler(CbbTest_SelectionChanged);
在这方面的任何帮助都将受到赞赏
答案 0 :(得分：0)
如果我理解正确，那么您将寻求在SelectionChanged事件中操纵您的组合框。您可以像这样获得组合框：
private void cbTest_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ComboBox comboBox = new ComboBox();
if(sender is ComboBox)
{
comboBox = (ComboBox)sender;
}
}
现在可以像这样处理它了：
private void cbTest_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ComboBox comboBox = new ComboBox();
if(sender is ComboBox)
{
comboBox = (ComboBox)sender;
}
//Add the treatments you want
comboBox.Items.Clear();
comboBox.ItemsSource = listTest;
}
答案 1 :(得分：0)
您可能想使用更多类似MVVM的方法，这意味着直接订阅视图背后代码中的事件不是最佳选择。在这种情况下，您可以使用类似的行为。
public class ComboBoxSelectionChangedBehavior : Behavior<ComboBox>
{
protected override void OnAttached()
{
base.OnAttached();
AssociatedObject.SelectionChanged += OnSelectionChanged;
}
private void OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
// ....
}
protected override void OnDetaching()
{
base.OnDetaching();
AssociatedObject.SelectionChanged -= OnSelectionChanged;
}
}
然后您可以通过xaml附加此行为。这是有关行为https://blog.jayway.com/2013/03/20/behaviors-in-wpf-introduction/
的简短教程答案 2 :(得分：-1)
Find control inside Listbox.ItemTemplate (WPF C#)
请参考上面的代码片段中的此链接，一旦有了combobox实例，就可以取消订阅该事件。