Power app – Validate chuỗi thông qua regex

Validate text input

If(
    Not(IsMatch(txtPlanningApprovalNo.Text, "[0-9A-Z]{19}-[0-9A-Z]{3}")) && !IsBlank(txtPlanningApprovalNo.Text),
    "Your input text is invalid.",
    ""
)

If(
    Not(IsMatch(txtPlanningApprovalNo.Text, "[0-9A-Z]{19}-[0-9A-Z]{3}")) && !IsBlank(txtPlanningApprovalNo.Text),
    RGBA(255, 0, 0, 1),
    RGBA(0, 18, 107, 1)
)