你即將離開本站

並前往https://itnext.io/materror-cross-field-validators-in-angular-material-7-97053b2ed0cf

MatError & Cross-Field Validators In Angular Material 7 - ITNEXT

We can learn from this that only when the form-field (the control) says it has errors, it displays the mat-error using a transclusion.

確定！ 回上一頁

查詢 「Mat-error」的人也找了：

  1. error error: mat-form-field must contain a matformfieldcontrol
    2.
  2. Mat-error not showing
    3.
  3. Mat-form-field' is not a known element
    4.
  4. MatFormFieldControl
    5.
  5. mat-icon
    6.
  6. mat-select
    7.
  7. matInput
    8.
  8. mat-form-field width
    9.