namespace PPMIS.SysManage
{
[System.ComponentModel.DataObject]
public class TrainTZRJ
{
private GeneralInfoDataContext cDataContext = new GeneralInfoDataContext(); /// <summary>
/// 获取实体信息
/// </summary>
/// <param name="ID">编号</param>
/// <returns>储实体信息</returns>
public IList<TZ_BSR> getTrainTZRJ(int TrainID)
{
IList<TZ_BSR> query;
try
{
query = (from c in cDataContext.TZ_BSR where c.TrainID == TrainID select c).ToList(); }
catch (System.InvalidOperationException e)
{
throw (new ApplicationException("该名单不存在", e.InnerException));
} return query;
}
}
}
错误 2 运算符“==”无法应用于“string”和“int”类型的操作数
{
[System.ComponentModel.DataObject]
public class TrainTZRJ
{
private GeneralInfoDataContext cDataContext = new GeneralInfoDataContext(); /// <summary>
/// 获取实体信息
/// </summary>
/// <param name="ID">编号</param>
/// <returns>储实体信息</returns>
public IList<TZ_BSR> getTrainTZRJ(int TrainID)
{
IList<TZ_BSR> query;
try
{
query = (from c in cDataContext.TZ_BSR where c.TrainID == TrainID select c).ToList(); }
catch (System.InvalidOperationException e)
{
throw (new ApplicationException("该名单不存在", e.InnerException));
} return query;
}
}
}
错误 2 运算符“==”无法应用于“string”和“int”类型的操作数
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c.TrainID == TrainID 运算符“==”无法应用于“string”和“int”类型的操作数
把int转换成string再比较试试?
你试下trainID。
你试下TrainID换成trainID
public IList<TZ_BSR> getTrainTZRJ(int TrainID)
而你在这里出现string与int无法比较
query = (from c in cDataContext.TZ_BSR where c.TrainID == TrainID select c).ToList();
说明c.TrainID是string类型。那么改一下LINQ查询为
query = (from c in cDataContext.TZ_BSR where c.TrainID == TrainID.ToString() select c).ToList();