本文实例为大家分享了微信小程序表单验证提交错误提示的具体代码,供大家参考,具体内容如下
表单验证,点击确认发布不能为空错误提示。
以下是效果图:
代码如下:
WXML:
<view class="ad_popError" wx:if="{{popErrorMsg}}">{{popErrorMsg}}</view> <view class="ad_popFt"> <form bindsubmit="goDetail" > <textarea class="ad_popArea" bindinput="commentTxtFn" focus="{{isPopOpen}}" placeholder="请输入留言内容" placeholder-style="color:#cccccc;" name="textarea" /> <view class="ad_popCout"> <text class="one_star">你还可以输入</text> <text class="one_stars {{!!tips?'danger':''}}">{{commentTxtCount}}</text> <text class="one_star">字</text> </view> <button class="informBtn" form-type="submit">确认发布</button> </form> </view>
WXSS:
page{background: #f4f4f4;} .ad_popHd{height: 76rpx; line-height: 76rpx; font-size: 32rpx;text-align: center; border-bottom: 1px solid #cdd1cd; padding: 0 20rpx;color: #202120;} .ad_popFt{ margin: 20rpx ; margin-top: 50rpx;} .ad_popArea{ width: 708rpx; height:400rpx;font-size:30rpx;padding: 20rpx; box-sizing: border-box; -webkit-box-sizing: border-box; line-height: 40rpx; color: #333; background: #fff; } .ad_popCout{ color: #969899; font-size: 24rpx; text-align: right; line-height: 58rpx; padding: 0 20rpx;} .informBtn{background: #09bb07;color: #fff;font-size: 34rpx; margin-top: 38rpx;height: 88rpx;} .one_stars{color: #999;} .one_star{font-size: 20rpx;color: #999;} .danger{ color: #f64400;} .ad_popError{ background: #de352d; color: #fff; height: 58rpx; line-height: 58rpx; font-size: 24rpx; text-align: center; position: absolute; left: 0; top: 0; width: 100%; z-index:3;}
JS:
// pages/informLeaveMsg/informLeaveMsg.js Page({ /** * 页面的初始数据 */ data: { }, //确认发布 goDetail:function(e){ setTimeout(()=>{ var subValue = e.detail.value.textarea console.log(subValue) if (subValue == null || subValue == "") { console.log("不能为空") this.setData( { popErrorMsg: "发布的留言内容不能为空" } ); this.ohShitfadeOut(); return; } },100) }, //定时器提示框3秒消失 ohShitfadeOut() { var fadeOutTimeout = setTimeout(() => { this.setData({ popErrorMsg: '' }); clearTimeout(fadeOutTimeout); }, 3000); }, })