Currency Helper

using System;
using Microsoft.Xrm.Sdk;
using Microsoft.Crm.Sdk.Messages;

/// <summary>
/// 货币
/// </summary>
public class TransactionCurrencyHelper
{
    public static readonly string entityName = "transactioncurrency";
    public Guid transactionCurrencyId = Guid.Empty;

    /// <summary>
    /// 创建货币
    /// </summary>
    /// <param name="service">服务</param>
    public void Create(IOrganizationService service)
    {
        Entity en = new Entity() { LogicalName = entityName };
        //货币代码
        en["isocurrencycode"] = "CNY";
        //货币名称
        en["currencyname"] = "人民币";
        //货币精度
        en["currencyprecision"] = ;
        //货币符合
        en["currencysymbol"] = "￥";
        //换算比率
        en["exchangerate"] = 1.0;

        transactionCurrencyId = service.Create(en);
    }

    /// <summary>
    /// 修改货币
    /// </summary>
    /// <param name="service">服务</param>
    public void Update(IOrganizationService service)
    {
        Entity en = new Entity() { LogicalName = entityName, Id = transactionCurrencyId };
        //货币名称
        en["currencyname"] = "人民币-2000";

        service.Update(en);
    }

    /// <summary>
    /// 检索汇率
    /// </summary>
    /// <param name="service">服务</param>
    public decimal SearchRateById(IOrganizationService service)
    {
        decimal value = ;
        RetrieveExchangeRateRequest request = new RetrieveExchangeRateRequest();
        request.TransactionCurrencyId = transactionCurrencyId;
        RetrieveExchangeRateResponse response = (RetrieveExchangeRateResponse)service.Execute(request);
        value = response.ExchangeRate;
        return value;
    }

    /// <summary>
    /// 停用和启用货币
    /// </summary>
    public void UpdateTransactionCurrencyState(IOrganizationService service)
    {
        //停用货币
        UpdateState(entityName, transactionCurrencyId, , , service);
        //启用货币
        UpdateState(entityName, transactionCurrencyId, , , service);
    }

    private void UpdateState(string enName, Guid id, int state, int status, IOrganizationService service)
    {
        SetStateRequest setState = new SetStateRequest()
        {
            EntityMoniker = new EntityReference()
            {
                Id = id,
                LogicalName = enName
            },
            State = new OptionSetValue(state),
            Status = new OptionSetValue(status)
        };
        service.Execute(setState);
    }

    /// <summary>         ///
    /// 删除货币         ///
    /// </summary>         ///
    /// <param name="service">服务</param>
    public void Delete(IOrganizationService service) { service.Delete(entityName, transactionCurrencyId); }
}