简单材质UI对话框示例具有不需要的滚动条 [英] Simple Material UI dialog example has unwanted scrollbar

问题描述

我有一个简单的Material UI对话框，其中包含一个网格，并且它的滚动条可以滚动几个像素，即使屏幕足够大，可以容纳整个对象.

I have a simple Material UI dialog containing a grid, and it has a scrollbar that can scroll a few pixels even though the screen is big enough to contain the whole thing.

      <Dialog open={isOpen} onClose={() => changeIsOpen(false)}>
        <DialogContent>
          <Grid container spacing={3}>
            <Grid item xs={12} sm={6}>
              <TextField label="First Name" fullWidth />
            </Grid>
            <Grid item xs={12} sm={6}>
              <TextField label="Last Name" fullWidth />
            </Grid>
            <Grid item xs={12}>
              <TextField label="Username" fullWidth />
            </Grid>
          </Grid>
        </DialogContent>
        <DialogActions>
          <Button
            color="secondary"
            variant="contained"
            onClick={() => changeIsOpen(false)}
          >
            Cancel
          </Button>
          <Button
            color="primary"
            variant="contained"
            onClick={() => changeIsOpen(false)}
          >
            OK
          </Button>
        </DialogActions>
      </Dialog>

此代码位于 https://codesandbox.io/s/cool-cherry-or0r8供您查看.

我不想使用 overflow:hidden ，因为如果页面太小，将会有一个滚动条，这是正确的.(在这个具有3个字段的玩具示例中，这种情况不太可能发生，但在较大的对话框中很容易发生).

I don't want to use overflow: hidden, because if the page is too small, there will be a scrollbar and that's correct. (Not likely to happen in this toy example with 3 fields, but easily possible in larger dialogs).

我认为问题与flexbox和< Grid> 使用的负边距之间的交互作用有关，但我无法完全解决.

I think the problem has something to do with interactions between flexbox and the negative margins that <Grid> uses, but I can't quite work it out.

推荐答案

更新:

DialogContent似乎是罪魁祸首，我们可以简单地尝试用下面给出的< div/> 替换< DialogContent/>

<div style={{ padding: 20, overflow: "scroll" }}>
  <Grid container spacing={3}>
    <Grid item xs={12} sm={6}>
      <TextField label="First Name" fullWidth />
    </Grid>
    <Grid item xs={12} sm={6}>
      <TextField label="Last Name" fullWidth />
    </Grid>
    <Grid item xs={12}>
      <TextField label="Username" fullWidth />
    </Grid>
  </Grid>
</div>;

---

忽略此解决方案:

---

DISREGARD THIS SOLUTION:

将 DialogContent 替换为以下内容:

<DialogContent>
  <div style={{ overflow: "hidden", height: "100%", width: "100%" }}>
    <div
      style={{
        paddingRight: 17,
        height: "100%",
        width: "100%",
        boxSizing: "content-box",
        overflow: "scroll"
      }}
    >
      <Grid container spacing={3}>
        <Grid item xs={12} sm={6}>
          <TextField label="First Name" fullWidth />
        </Grid>
        <Grid item xs={12} sm={6}>
          <TextField label="Last Name" fullWidth />
        </Grid>
        <Grid item xs={12}>
          <TextField label="Username" fullWidth />
        </Grid>
      </Grid>
    </div>
  </div>
</DialogContent>

演示: https://codesandbox.io/s/09ng6

为此答案提供信用: https://stackoverflow.com/a/16671476/7427111

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