如何解决如何在列表框中创建列?
我想在我的列表框中实现列(标记为紫色),如下图所示:
我的GUI中的主窗口分为两个选项卡。我在这里仅粘贴要实现列的选项卡中的代码。列表框已经在这里:
console.warn
Warning: An unhandled error was caught from submitForm() TypeError: Cannot read property 'body' of null
at getActiveElement (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:6651:16)
at getActiveElementDeep (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:6939:17)
at getSelectioninformation (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:6972:21)
at prepareForCommit (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:7463:26)
at commitRootImpl (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:22474:5)
at unstable_runWithPriority (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/node_modules/scheduler/cjs/scheduler.development.js:653:12)
at runWithPriority$1 (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:11039:10)
at commitRoot (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:22381:3)
at finishSyncRender (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:21807:3)
at performSyncWorkOnRoot (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:21793:7)
at /home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:11089:24
at unstable_runWithPriority (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/node_modules/scheduler/cjs/scheduler.development.js:653:12)
at runWithPriority$1 (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:11039:10)
at flushSyncCallbackQueueImpl (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:11084:7)
at flushSyncCallbackQueue (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:11072:3)
at scheduleUpdateOnFiber (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:21199:9)
at dispatch (/home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/react-dom/cjs/react-dom.development.js:15660:5)
at /home/alesha/Documents/Projects/react-js-training/react-js-training/node_modules/formik/src/Formik.tsx:357:11
at processticksAndRejections (internal/process/task_queues.js:93:5)
at node_modules/formik/src/Formik.tsx:836:17
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