在 Eclipse WizardPage 中 - 在页面之间导航的问题
In Eclipse WizardPage - Issues in Navigating between pages
我写了一个小程序,可以从一页导航到另一页。但我无法那样做。
我的要求是
在 PageOne 上,如果用户输入一个值,则应该对其进行验证,即在本例中为“123”进行简单比较。
如果匹配则继续下一页,如下所示:
第一页
第二页
否则抛出下面的对话框:
第一页
第一页代码:
package testing.importWizards;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class PageOne extends WizardPage {
private Text text1;
private Composite container;
boolean isVisible=false;
public PageOne() {
super("Page One");
setTitle("Page One");
setDescription("Fake Wizard: Page One");
}
@Override
public void createControl(Composite parent) {
container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
layout.numColumns = 2;
Label label1 = new Label(container, SWT.NONE);
label1.setText("Put a value here.");
text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setText("");
text1.addKeyListener(new KeyListener() {
@Override
public void keyPressed(KeyEvent e) {
}
@Override
public void keyReleased(KeyEvent e) {
if (!text1.getText().isEmpty()) {
setPageComplete(true);
}
}
});
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
text1.setLayoutData(gd);
setControl(container);
setPageComplete(false);
}
@Override
public IWizardPage getNextPage() {
// TODO Auto-generated method stub
Shell shell=getShell();
return super.getNextPage();
}
public String getText1() {
return text1.getText();
}
}
第二页代码:
package testing.importWizards;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
public class PageTwo extends WizardPage {
private Text text1;
private Composite container;
public PageTwo() {
super("Page Two");
setTitle("Page Two");
setDescription("Fake Wizard: Page Two");
}
@Override
public void createControl(Composite parent) {
container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
layout.numColumns = 2;
Label label1 = new Label(container, SWT.NONE);
label1.setText("Success");
/*text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setText("");
text1.addKeyListener(new KeyListener() {
@Override
public void keyPressed(KeyEvent e) {
}
@Override
public void keyReleased(KeyEvent e) {
if (!text1.getText().isEmpty()) {
setPageComplete(true);
}
}
});*/
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
//text1.setLayoutData(gd);
setControl(container);
//setPageComplete(false);
setPageComplete(true);
}
public String getText1() {
return text1.getText();
}
}
我已经重写了 setVisible 和 getNextPage 方法,但出现错误行为。有人可以向我解释实现验证的逻辑吗?我的整个方法是错误的吗?
向导页面通常使用 setErrorMessage
或 setError
在向导的顶部区域显示错误,而不是显示对话框。
通常每次页面上的数据更改时都进行验证很方便。对于您的示例页面,例如:
public class PageOne extends WizardPage
{
private Text text1;
public PageOne()
{
super("testWizardPage");
setTitle("Page One");
setDescription("Fake Wizard: Page One");
}
@Override
public void createControl(final Composite parent)
{
Composite container = new Composite(parent, SWT.NONE);
container.setLayout(new GridLayout(2, false));
Label label1 = new Label(container, SWT.NONE);
label1.setText("Put a value here.");
text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
text1.addModifyListener(this::modifyListener);
setControl(container);
setPageComplete(false);
}
private void modifyListener(final ModifyEvent event)
{
boolean empty = text1.getText().isEmpty();
if (empty)
setErrorMessage("Text must be entered");
else
setErrorMessage(null);
setPageComplete(!empty);
}
}
这是在 text1
字段上使用 'modify listener' 并在每次更改字段时调用 setErrorMessage
和 setPageComplete
。
我写了一个小程序,可以从一页导航到另一页。但我无法那样做。
我的要求是
在 PageOne 上,如果用户输入一个值,则应该对其进行验证,即在本例中为“123”进行简单比较。 如果匹配则继续下一页,如下所示:
第一页
第二页
否则抛出下面的对话框:
第一页
第一页代码:
package testing.importWizards;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.wizard.IWizardPage;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class PageOne extends WizardPage {
private Text text1;
private Composite container;
boolean isVisible=false;
public PageOne() {
super("Page One");
setTitle("Page One");
setDescription("Fake Wizard: Page One");
}
@Override
public void createControl(Composite parent) {
container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
layout.numColumns = 2;
Label label1 = new Label(container, SWT.NONE);
label1.setText("Put a value here.");
text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setText("");
text1.addKeyListener(new KeyListener() {
@Override
public void keyPressed(KeyEvent e) {
}
@Override
public void keyReleased(KeyEvent e) {
if (!text1.getText().isEmpty()) {
setPageComplete(true);
}
}
});
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
text1.setLayoutData(gd);
setControl(container);
setPageComplete(false);
}
@Override
public IWizardPage getNextPage() {
// TODO Auto-generated method stub
Shell shell=getShell();
return super.getNextPage();
}
public String getText1() {
return text1.getText();
}
}
第二页代码:
package testing.importWizards;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
public class PageTwo extends WizardPage {
private Text text1;
private Composite container;
public PageTwo() {
super("Page Two");
setTitle("Page Two");
setDescription("Fake Wizard: Page Two");
}
@Override
public void createControl(Composite parent) {
container = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
container.setLayout(layout);
layout.numColumns = 2;
Label label1 = new Label(container, SWT.NONE);
label1.setText("Success");
/*text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setText("");
text1.addKeyListener(new KeyListener() {
@Override
public void keyPressed(KeyEvent e) {
}
@Override
public void keyReleased(KeyEvent e) {
if (!text1.getText().isEmpty()) {
setPageComplete(true);
}
}
});*/
GridData gd = new GridData(GridData.FILL_HORIZONTAL);
//text1.setLayoutData(gd);
setControl(container);
//setPageComplete(false);
setPageComplete(true);
}
public String getText1() {
return text1.getText();
}
}
我已经重写了 setVisible 和 getNextPage 方法,但出现错误行为。有人可以向我解释实现验证的逻辑吗?我的整个方法是错误的吗?
向导页面通常使用 setErrorMessage
或 setError
在向导的顶部区域显示错误,而不是显示对话框。
通常每次页面上的数据更改时都进行验证很方便。对于您的示例页面,例如:
public class PageOne extends WizardPage
{
private Text text1;
public PageOne()
{
super("testWizardPage");
setTitle("Page One");
setDescription("Fake Wizard: Page One");
}
@Override
public void createControl(final Composite parent)
{
Composite container = new Composite(parent, SWT.NONE);
container.setLayout(new GridLayout(2, false));
Label label1 = new Label(container, SWT.NONE);
label1.setText("Put a value here.");
text1 = new Text(container, SWT.BORDER | SWT.SINGLE);
text1.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
text1.addModifyListener(this::modifyListener);
setControl(container);
setPageComplete(false);
}
private void modifyListener(final ModifyEvent event)
{
boolean empty = text1.getText().isEmpty();
if (empty)
setErrorMessage("Text must be entered");
else
setErrorMessage(null);
setPageComplete(!empty);
}
}
这是在 text1
字段上使用 'modify listener' 并在每次更改字段时调用 setErrorMessage
和 setPageComplete
。