问题描述
首先我想说，虽然RequiredFieldValidator在.NET中使用，但我使用这个术语来表示wicket，因为我想表示一个标签(颜色:红色和文本:*)，它会在编辑器时显示在AjaxEditableLabel旁边AjaxEditableLabel 的将为空白.我已经设置了 AjaxEditableLabel.setRequired(true) 并且它正在工作，即无法提交表单.但是我无法跟踪 AjaxEditableLabel 旁边的那个红星标签.到目前为止我所做的是:
At first I want to say, although RequiredFieldValidator is used in .NET but I use this term for wicket as I want to mean a Label (color: red and text: *) which will be be displayed beside AjaxEditableLabel when the editor of the AjaxEditableLabel will be blank. I have set AjaxEditableLabel.setRequired(true) and it is working, i.e., the Form cannot be submitted. But I am not able to track that red star Label beside the AjaxEditableLabel. What I did so far is :
private class TaskTypeSettingsForm extends Form {
private static final long serialVersionUID = 10058L;
private FeedbackMessageFilter filter;
public TaskTypeSettingsForm(String id) {
super(id);
FeedbackPanel feedback = new FeedbackPanel("feedback");
filter = new FeedbackMessageFilter();
feedback.setFilter(filter);
add(feedback);
setOutputMarkupId(true);
final TaskTypeSettingsFormModel taskTypeSettingsFormModel = new TaskTypeSettingsFormModel();
IModel model = new BoundCompoundPropertyModel(taskTypeSettingsFormModel);
setModel(model);
final WebMarkupContainer div = new WebMarkupContainer("div");
div.setOutputMarkupId(true);
final ListView listView = new ListView("listView", new PropertyModel(taskTypeSettingsFormModel, "taskTypeList")) {
@Override
protected void populateItem(ListItem item) {
final String value = (String) item.getModelObject();
final int index = item.getIndex();
final Label star = new Label("star", "*");
//this label is always displaying, I need to
//display it when the editor is blank and hide when
//it contain valid text
star.setOutputMarkupId(true);
final AjaxEditableLabel label = new AjaxEditableLabel("value", new Model(value)) {
@Override
public void onSubmit(AjaxRequestTarget target) {
super.onSubmit(target);
//here I also try to get the editor
//and add a SimpleAttributeModifier
//with a javaScript for onBlur
//event, but that script is not
//working as I am not able to
//append that script to the
//editor's existing ajax
String input = (String) getModelObject();
if (input != null) {
taskTypeSettingsFormModel.getTaskTypeList().set(index, input);
}
}
};
label.setRequired(true);
item.add(star);
label.setOutputMarkupId(true);
label.add(new SimpleAttributeModifier("style", "cursor: pointer; cursor: hand;"));
label.add(new AbstractValidator() {
@Override
protected void onValidate(IValidatable validatable) {
String value = (String) validatable.getValue();
Pattern pattern = Pattern.compile("^[a-zA-Z0-9]+$");
Matcher matcher = pattern.matcher(value);
if (!matcher.matches()) {
error(validatable);
}
}
@Override
protected String resourceKey() {
return "task_type_settings_form.error.regexFailure";
}
});
item.add(label);
item.add(removeLink("removeLink", item));
item.add(moveUpLink("up", item));
item.add(moveDownLink("down", item));
}
};
listView.setOutputMarkupId(true);
listView.setReuseItems(true);
div.add(listView);
//some code
}
@Override
protected void validate() {
filter.reset();
super.validate();
}
@Override
public void onSubmit() {
TaskTypeSettingsFormModel taskTypeSettingsFormModel = (TaskTypeSettingsFormModel) getModelObject();
for (String str : taskTypeSettingsFormModel.getTaskTypeList()) {
System.out.println(str);
}
}
}
希望我能解释一下这个场景.任何有关这方面的信息都会对我非常有帮助.谢谢.
Hope I can explain the scenario. Any information regarding this will be very helpful to me. Thank you.
推荐答案
与其挂着标签，不如用行为来做
Instead of having a label hanging around, you could do it with a behaviour
public class RequiredStarBevaviour extends AbstractBehavior {
@Override
public void beforeRender(final Component component) {
super.beforeRender(component);
if (component instanceof FormComponent<?>) {
if (!((FormComponent<?>) component).checkRequired()) {
component.getResponse()
.write("<span class='redclass'>*</span>");
}
}
}
}
这将在每次渲染组件时运行，它会检查它是否是一个表单组件，如果没有满足所需的检查，它将渲染星星.
This will run each time the component is rendered, it will check if its a form component and if the required check is not met it will render the star.
编辑对问题的回答:
final AjaxEditableLabel label = new AjaxEditableLabel("value",
new Model(value)) {
@Override
protected FormComponent newEditor(final MarkupContainer parent,
final String componentId, final IModel model) {
final FormComponent newEditor = super.newEditor(parent,
componentId, model);
newEditor.add(new RequiredStarBevaviour());
return newEditor;
}
@Override
public void onSubmit(final AjaxRequestTarget target) {
super.onSubmit(target);
// here I also try to get the editor
// and add a SimpleAttributeModifier
// with a javaScript for onBlur
// event, but that script is not
// working as I am not able to
// append that script to the
// editor's existing ajax
final String input = (String) getModelObject();
if (input != null) {
taskTypeSettingsFormModel.getTaskTypeList().set(index,
input);
}
}
};
这篇关于Wicket- AjaxEditableLabel 的 RequiredFieldValidator的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！