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.net core使用Ku.Core.Extensions.Layui实现layui表单渲染

程序员文章站 2024-01-10 23:06:11
演示网站地址:http://layui.kulend.com/项目地址:https://github.com/kulend/Ku.Core.Extensions/tree/master/Ku.Core.Extensions.Layui Demo代码:https://github.com/kulend ......

演示网站地址:http://layui.kulend.com/
项目地址:https://github.com/kulend/Ku.Core.Extensions/tree/master/Ku.Core.Extensions.Layui

Demo代码:https://github.com/kulend/Ku.Core.Extensions/tree/master/Tests/Ku.Core.Extensions.Layui.Test


如果您的.net core 2.0项目使用layui来渲染表单,那么您可以尝试使用这个HtmlHelper扩展来帮你减少代码和工作量。

安装方法
PM> Install-Package Ku.Core.Extensions.Layui -Version 2.2.0.0
dotnet add package Ku.Core.Extensions.Layui --version 2.2.0.0

使用方法:
1.在Startup的ConfigureServices方法中

//使用Layui
services.AddLayui();

 

2._ViewImports.cshtml文件中添加

@addTagHelper *, Ku.Core.Extensions.Layui

 

3.定义Model及其属性,例如:

public class DemoModel
{
    /// <summary>
    /// ID
    /// </summary>
    [DataType("hidden")]
    public long Id { get; set; }

    /// <summary>
    /// 名称
    /// </summary>
    [Required, MaxLength(20), MinLength(5)]
    [Display(Name = "名称", Description = "附加说明文字")]
    [RegularExpression(@"^[a-zA-Z''-'\s]{1,40}$", ErrorMessage = "输入的名称不符合规则")]
    public string Name { get; set; }

    /// <summary>
    /// 名称
    /// </summary>
    [Required]
    [Display(Name = "手机号")]
    [DataType(DataType.PhoneNumber)] //也可以为[DataType("mobile")]
    public string Mobile { get; set; }

    /// <summary>
    /// 链接
    /// </summary>
    [MaxLength(256)]
    [Display(Name = "链接")]
    [DataType(DataType.Url)]
    public string Url { get; set; }

    /// <summary>
    /// Email
    /// </summary>
    [MaxLength(256)]
    [Display(Name = "Email")]
    [DataType(DataType.EmailAddress)]
    public string Email { get; set; }

    /// <summary>
    /// 序号
    /// </summary>
    [Display(Name = "序号", Prompt ="0~9999")]
    public int OrderIndex { get; set; } = 0;

    /// <summary>
    /// 序号
    /// </summary>
    [Display(Name = "数字", Prompt = "0~9999")]
    [Range(-1, 999.05)]
    public decimal Dec { get; set; } = 0;

    /// <summary>
    /// 开关
    /// </summary>
    [Display(Name = "开关", Prompt = "开|关")]
    public bool Switch { get; set; } = true;

    [Display(Name = "时间")]
    [DisplayFormat(DataFormatString = "yyyy-MM-dd HH:mm:ss")] //定义显示格式
    [DataType(DataType.DateTime)] //也可以这样[DataType("datetime")]
    public DateTime? Date { set; get; }

    [Display(Name = "年份")]
    [DataType("year")]
    public int Year { set; get; }

    [Display(Name = "月份")]
    [DisplayFormat(DataFormatString = "现在是yyyy年MM月")]
    [DataType("month")]
    public string Month { set; get; }

    /// <summary>
    /// 枚举
    /// </summary>
    [Display(Name = "性别")]
    public EmSex Sex { set; get; }

    /// <summary>
    /// 多行文本
    /// </summary>
    [Display(Name = "备注", Prompt = "请输入您的备注信息...")]
    [MaxLength(500)]
    [DataType(DataType.MultilineText)] //或者[DataType("textarea")]
    public string Remark { set; get; }
}

/// <summary>
/// 性别
/// </summary>
public enum EmSex : short
{
    [Display(Name = "保密")]
    Secret = 0,

    [Display(Name = "男")]
    Male = 1,

    [Display(Name = "女")]
    Female = 2
}

 

4.在form中使用@Html.InputFor,如

            @using (Html.BeginForm<DemoModel>("#"))
            {
                @Html.InputFor(x => x.Id)
                @Html.InputFor(x => x.Name, x => x.Mobile)
                @Html.InputFor(x => x.Url, x => x.Email)
                @Html.InputFor(x => x.OrderIndex, x => x.Dec)
                @Html.InputFor(x => x.Sex)
                @Html.InputFor(x => x.Switch, x => x.Date)
                @Html.InputFor(x => x.Year, x => x.Month)
                @Html.InputFor(x => x.Remark)
                @Html.ActionsForSubmitAndReset()
            }

或者使用@Html.ShowFor,如

            @using (Html.BeginForm<DemoModel>("#"))
            {
                @Html.InputFor(x => x.Id)
                @Html.ShowFor(x => x.Name, x => x.Mobile)
                @Html.ShowFor(x => x.Url, x => x.Email)
                @Html.ShowFor(x => x.OrderIndex, x => x.Dec)
                @Html.ShowFor(x => x.Sex)
                @Html.ShowFor(x => x.Switch, x => x.Date)
                @Html.ShowFor(x => x.Year, x => x.Month)
                @Html.ShowFor(x => x.Remark)
            }

使用ShowFor需要在页面添加以下css代码:

<style>
    .layui-form-item .layui-form-label-show {
        float: left;
        display: block;
        padding: 9px 15px;
        font-weight: 400;
        text-align: left;
        color: #808080;
    }

    .layui-form-item .layui-input-block .layui-form-label-show {
        width: 85%;
    }
</style>

来个效果图:

.net core使用Ku.Core.Extensions.Layui实现layui表单渲染

 

show

.net core使用Ku.Core.Extensions.Layui实现layui表单渲染

怎么样,很简单吧。

通过设置字段的DataType和各种ValidationAttribute特性还可以完成表单数据验证,如:

[Required]:不能为空
[MaxLength]特性:最大长度验证 
[MinLength]特性:最小长度验证 
[StringLength]特性:最大和最小长度验证
[DataType(DataType.PhoneNumber)]或[DataType("mobile")]:手机号验证 
[DataType(DataType.Url)]:网址验证 
[DataType(DataType.EmailAddress)]或[DataType("email")]:Email验证 
字段类型为int:整数验证 
字段类型为decimal:数字验证 
[RegularExpression]特性:自定义正则表达式验证,如[RegularExpression(@"^[a-zA-Z''-'\s]{1,40}$", ErrorMessage = "输入的名称不符合规则")]

 

注意:表单验证功能需扩展layui的验证,可下载form.verify.js
https://github.com/kulend/Ku.Core.Extensions/blob/master/Tests/Ku.Core.Extensions.Layui.Test/wwwroot/js/form.verify.js

5.其他说明:
1)bool型字段默认会渲染成switch,lay-text需要这样设置:

[Display(Name = "开关", Prompt = "开|关")]

 

2)除了字段类型,很多时候需要DataTypeAttribute来判断渲染方式,默认为text,还可设置hidden,password,multilinetext,textarea,datetime,date,year,month,time等。multilinetext和textarea会渲染成Textarea。
3)关于Action按钮,

@Html.ActionsForSubmit(), 添加保存按钮(提交表单)。 
@Html.ActionsForSubmitAndClose(), 添加保存和关闭按钮。 
@Html.ActionsForSubmitAndReset(), 添加保存和重置按钮。 
@Html.ActionsFor(btns), 添加自定义按钮,例如:
@Html.ActionsFor(
new SubmitButton(),
new CloseButton(),
new ResetButton { Text = "重置表单" },
new ActionButton { Id = "btn_test", Text = "自定义按钮", Css = "btn-test", OnClick = "alert(1);" }
)

 

4)修改全局默认配置

//使用Layui
services.AddLayui(opt => {
opt.ActionsInFormItem = false;
opt.ActionTagTheme = "layui-btn-primary";
opt.ActionTagSize = "layui-btn-sm";
});

 

5)关于laydate组件,需要在页面添加以下js脚本:

layui.use(['laydate'], function () {
    var $ = layui.jquery
    , laydate = layui.laydate;

    $(".layui-input.laydate").each(function () {
        var self = $(this);
        var type = self.data("type") || 'date';
        var format = self.data("format") || 'yyyy-MM-dd';
        laydate.render({
            elem: self[0],
            type: type,
            format: format
        });
    });
});

 

项目在不断更新,如有bug或其他建议,可以提交issue。也可邮件给我:kulend@qq.com