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如何在反应中获取 textarea 的值?

[英]how to getvalue of textarea in react?

I am using react-final-form and TextareaAutosize in my example .I am trying to get the value of text-area but not able to do that.我在我的示例中使用react-final-formTextareaAutosize 。我试图获取text-area的值,但无法做到这一点。 I am able to get value of input field but not textarea我可以获取input字段的值,但不能获取textarea

here is my code https://codesandbox.io/s/react-final-form-simple-example-rd3rc这是我的代码https://codesandbox.io/s/react-final-form-simple-example-rd3rc

 <div>
            <label>Text area Name</label>
            <Field
              component={TextareaAutosize}
              type="textarea"
              name="operatingPinCode"
              placeholder="Notes"
              label="About"
            />
          </div>

API link https://final-form.org/docs/react-final-form/examples/simple API 链接https://final-form.org/docs/react-final-form/examples/simple

https://www.npmjs.com/package/react-textarea-autosize https://www.npmjs.com/package/react-textarea-autosize

Your final-form code is working fine.您的最终形式代码工作正常。 The problem I think lies with TextAreaAutosize, since it doesn't know how to pass data directly to your form.我认为问题在于 TextAreaAutosize,因为它不知道如何将数据直接传递到您的表单。 So you might need to add a handler on that field for the onChange event.因此,您可能需要在该字段上为 onChange 事件添加处理程序。

Based on the final form documentation, this code sample below seems to work just fine: sandbox-code Just checkout the second attempt section.根据最终的表单文档,下面的这个代码示例似乎工作得很好: sandbox-code只需检查第二次尝试部分。

You can get value by this pop:你可以通过这个 pop 获得价值:

`onChange={(event) => {
        console.log(event.target.value)
    }}`

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