dataTable-设置导出文件名

问题描述

我正在使用dataTable

是否可以将导出文件名设置为所有文件格式（使用一个命令），还是我必须对每个按钮执行此操作？

如果是的话-如何将其设置为csv，excel和pdf？

struct City: Codable {
    let zipCode: Int
    let latitude,longitude: Itude
    let city: String
    let state: State
    let county: String

    enum CodingKeys: String,CodingKey {
        case zipCode = "zip_code"
        case latitude,longitude,city,state,county
    }
}

enum Itude: Codable {
    case double(Double)
    case string(String)

    init(from decoder: Decoder) throws {
        let container = try decoder.singleValueContainer()
        if let x = try? container.decode(Double.self) {
            self = .double(x)
            return
        }
        if let x = try? container.decode(String.self) {
            self = .string(x)
            return
        }
        throw DecodingError.typeMismatch(Itude.self,DecodingError.Context(codingPath: decoder.codingPath,debugDescription: "Wrong type for Itude"))
    }

    func encode(to encoder: Encoder) throws {
        var container = encoder.singleValueContainer()
        switch self {
        case .double(let x):
            try container.encode(x)
        case .string(let x):
            try container.encode(x)
        }
    }
}

enum State: String,Codable {
    case aa = "AA"
    case ae = "AE"
    case ak = "AK"
    case al = "AL"
    case ap = "AP"
    case ar = "AR"
    case az = "AZ"
    case ca = "CA"
    case co = "CO"
    case ct = "CT"
    case dc = "DC"
    case de = "DE"
    case fl = "FL"
    case fm = "FM"
    case ga = "GA"
    case gu = "GU"
    case hi = "HI"
    case ia = "IA"
    case id = "ID"
    case il = "IL"
    case ks = "KS"
    case ky = "KY"
    case la = "LA"
    case ma = "MA"
    case md = "MD"
    case me = "ME"
    case mh = "MH"
    case mi = "MI"
    case mn = "MN"
    case mo = "MO"
    case mp = "MP"
    case ms = "MS"
    case mt = "MT"
    case nc = "NC"
    case nd = "ND"
    case ne = "NE"
    case nh = "NH"
    case nj = "NJ"
    case nm = "NM"
    case nv = "NV"
    case ny = "NY"
    case oh = "OH"
    case ok = "OK"
    case or = "OR"
    case pa = "PA"
    case pr = "PR"
    case pw = "PW"
    case ri = "RI"
    case sc = "SC"
    case sd = "SD"
    case stateAS = "AS"
    case stateIN = "IN"
    case tn = "TN"
    case tx = "TX"
    case ut = "UT"
    case va = "VA"
    case vi = "VI"
    case vt = "VT"
    case wa = "WA"
    case wi = "WI"
    case wv = "WV"
    case wy = "WY"
}

typealias Cities = [City]

解决方法

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