public string UnBind(string groundId)
{
string result = string.Empty;
try
{
using (GeelyPtlEntities dbContext = new GeelyPtlEntities())
{
FeedZone item = dbContext.FeedZones.FirstOrDefault(x => x.GroundId == groundId);
if (item == null)
{
result = "该地堆不存在！";
}
else
{
item.MaterialId = null;
dbContext.SaveChanges();
result = "解绑成功！";
}
}
}
catch (Exception ex)
{
result = ex.Message;
}
return(result);
}
public string Bind(string materialId, string groundId)
{
string result = string.Empty;
try
{
materialId = materialId.Trim();
groundId = groundId.Trim();
using (GeelyPtlEntities dbContext = new GeelyPtlEntities())
{
FeedZone item = dbContext.FeedZones.FirstOrDefault(x => x.GroundId == groundId);
if (item == null)
{
result = "该地堆不存在！";
}
else
{
if (string.IsNullOrEmpty(item.MaterialId))
{
item.MaterialId = materialId;
dbContext.SaveChanges();
result = "绑定成功！";
}
else
{
result = "该地堆已绑定小车，不能重复绑定！";
}
}
}
}
catch (Exception ex)
{
result = ex.Message;
}
return(result);
}