SmartGwt：使用画布将按钮添加到列表网格时出现异常

Question

我正在使用 smartgwt2.4 并且我有 listgrid，其中我使用 canvas 动态添加按钮。它工作正常，但出现异常。调用 ListGrid.setData(record) 时它会引发异常。Stacktrace 如下。

com.smartgwt.client.core.JsObject$SGWT_WARN: 12:15:12.808:WARN:Button:isc_Button_0:ignoring bad or negative top: NaN [enable 'sizing' log for stack trace]
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:105)
    at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
    at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
    at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
    at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeVoid(ModuleSpace.java:284)
    at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeVoid(JavaScriptHost.java:107)
    at com.smartgwt.client.widgets.BaseWidget.setProperty(BaseWidget.java)
    at com.smartgwt.client.widgets.BaseWidget.setAttribute(BaseWidget.java:628)
    at com.smartgwt.client.widgets.grid.ListGrid.setData(ListGrid.java:9621)
    at com.prolinkdpocadmin.client.widgets.DeduplicationContentGrid.fillGridFromJson(DeduplicationContentGrid.java:213)
    at com.prolinkdpocadmin.client.widgets.DeduplicationContainer.setDataInGrid(DeduplicationContainer.java:104)
    at com.prolinkdpocadmin.client.widgets.DeduplicationContainer.access$0(DeduplicationContainer.java:101)
    at com.prolinkdpocadmin.client.widgets.DeduplicationContainer$1.onSuccess(DeduplicationContainer.java:46)
    at com.prolinkdpocadmin.client.widgets.DeduplicationContainer$1.onSuccess(DeduplicationContainer.java:1)
    at com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived(RequestCallbackAdapter.java:216)
    at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287)
    at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:393)
    at sun.reflect.GeneratedMethodAccessor15.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:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessagesWhileWaitingForReturn(BrowserChannel.java:1713)
    at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:165)
    at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
    at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
    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:188)
    at sun.reflect.GeneratedMethodAccessor9.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:157)
    at com.google.gwt.dev.shell.BrowserChannel.reactToMessages(BrowserChannel.java:1668)
    at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:401)
    at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
    at java.lang.Thread.run(Thread.java:662)

请帮助我出去了.....

这是显示我如何使用画布将按钮添加到网格中的代码..以及为listgrid和listGridField设置的所有属性.........................

lgfprimaryCompanyName = new ListGridField("pCompany", "主要公司"); lgfprimaryCompanyName.setWidth(250); lgfprimaryCompanyName.setAlign(Alignment.LEFT);

    lgfmarkPrimaryAsDuplicate = new ListGridField("MarkPrimaryDuplicate", "Mark As Duplicate");
    lgfmarkPrimaryAsDuplicate.setWidth(130);
    lgfmarkPrimaryAsDuplicate.setCanSort(false);
    lgfmarkPrimaryAsDuplicate.setAlign(Alignment.CENTER);

   // lgfmarkPrimaryAsDuplicate.addRecordClickHandler(this);

    lgfduplicateCompanyName = new ListGridField("dCompany", "Duplicate Company");
    lgfduplicateCompanyName.setWidth(250);
    lgfduplicateCompanyName.setAlign(Alignment.LEFT);

    lgfmarkDuplicateAsDuplicate = new ListGridField("MarkDuplicateDuplicate", "Mark as Duplicate");
    lgfmarkDuplicateAsDuplicate.setWidth(130);
    lgfmarkDuplicateAsDuplicate.setCanSort(false);
    lgfmarkDuplicateAsDuplicate.setAlign(Alignment.CENTER);

   // lgfmarkDuplicateAsDuplicate.addRecordClickHandler(this);

    lgDuplicateCompany = new ListGrid() {

                @Override
                protected Canvas createRecordComponent(final ListGridRecord record, Integer colNum) {

                    String fieldName = this.getFieldName(colNum);
                    if (fieldName.equals("MarkPrimaryDuplicate")) {
                        Button btnMarkPrimaryAsDuplicate = new Button();
                        btnMarkPrimaryAsDuplicate.setTitle("" + record.getAttribute("MarkPrimaryDuplicate"));
                        btnMarkPrimaryAsDuplicate.addClickHandler(new ClickHandler() {

                            @Override
                            public void onClick(ClickEvent event) {
                              Window.alert("button in column 2 is clicked");

                                    }
                                }

                            }

                        });
                        return btnMarkPrimaryAsDuplicate;

                    } else if (fieldName.equals("MarkDuplicateDuplicate")) {
                        Button btnMarkDuplicateAsDuplicate = new Button();
                        btnMarkDuplicateAsDuplicate.setTitle("" + record.getAttribute("MarkDuplicateDuplicate"));
                        btnMarkDuplicateAsDuplicate.addClickHandler(new ClickHandler() {

                            @Override
                            public void onClick(ClickEvent event) {
                             Window.alert("button in column 4 is clicked");

    }
                        });

                        return btnMarkDuplicateAsDuplicate;

                    } else {
                        return null;
                    }
                }

    };
    lgDuplicateCompany.setFields(lgfprimaryCompanyName, lgfmarkPrimaryAsDuplicate, lgfduplicateCompanyName, lgfmarkDuplicateAsDuplicate);
    lgDuplicateCompany.setWidth(780);
    lgDuplicateCompany.setSelectionType(SelectionStyle.SINGLE);
    lgDuplicateCompany.setSelectionAppearance(SelectionAppearance.ROW_STYLE);
    lgDuplicateCompany.setCanResizeFields(true);
    lgDuplicateCompany.setCanReorderFields(true);
    lgDuplicateCompany.setShowRecordComponents(true);
    lgDuplicateCompany.setShowRecordComponentsByCell(true);

Answer 1

您是否使用 AutoFitData 并指定了特定宽度？我相信这些冲突的设置会给你带来这个错误。