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我正在使用GWT构建表格。当我点击一个EditTextCell时，为什么我会得到一个JavascriptException“no method'focus'”？
我想要的字段是EditTextCell。它呈现OK开始，但后来当我点击它，使之变成一个TextInputCell，我看到在Eclipse以下异常：
15:13:22.428 [ERROR] [xxx] Uncaught exception escaped
com.google.gwt.core.client.JavaScriptException: (TypeError): Object [object Text] has no method 'focus'
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:237)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:132)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.java)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:214)
at sun.reflect.GeneratedMethodAccessor252.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:167)
at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:281)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:531)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352)
at java.lang.Thread.run(Thread.java:680)
相关代码：
private void buildTable() {
// Create a celltable
final CellTable<Person> personTable = new CellTable<Person>(KEY_PROVIDER);
// Create name column
final EditTextCell nameCell = new EditTextCell();
Column<Person, String> nameColumn = new Column<Person, String>(nameCell) {
@Override
public String getValue(Person person) {
return person.getName();
}
};
nameColumn.setFieldUpdater(new FieldUpdater<Person,String>() {
public void update(int index, Person object, String value) {
System.out.println("field updater called");
}
});
// Make the name column sortable.
nameColumn.setSortable(true);
personTable.addColumn(nameColumn, "Name");
// ... and then code for other columns...
}
有谁对我为什么会得到我所看到的异常有线索？