/// <summary>
/// 设置所有在Request中为空的key所对应的具体类中所对应的initialized值为true(若字段为string类型则跳过,以避免无法设置为空字符串),因为在具体类中的AutoForm方法检测到initialized为true时,会检查Request是否为空,为空则跳过,此方法需要在AutoFrom之前使用
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="request">当前请求</param>
/// <param name="instance"></param>
public static void SetInitializedToTrueIfIsNotStringTypeAndISEmpty(this Dejun.DataProvider.IDateBuildTable instance, HttpRequest request)
{
string[] allKeys = request.QueryString.AllKeys;
Type type = instance.GetType();
BindingFlags publicFlag = BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance; //获取属性的设置,忽略大小写
BindingFlags nonPublicFlag = BindingFlags.NonPublic | BindingFlags.IgnoreCase | BindingFlags.Instance; //获取私有字段的设置,忽略大小写
foreach (var item in allKeys)
{
if (item == null)
{
continue;
}
PropertyInfo proInfo = type.GetProperty(item, publicFlag);
if (proInfo != null)
{
string typeName = proInfo.PropertyType.Name;
if (typeName == "String")
{
continue;
}
if (string.IsNullOrEmpty(request[item]))
{
FieldInfo fieldInfo = type.GetField(item + "_initialized", nonPublicFlag);
if (fieldInfo != null)
{
fieldInfo.SetValue(instance, true);
}
}
}
}
}
/// <summary>
/// 设置私有字段的值
/// </summary>
/// <param name="instance">调用该方法的对象</param>
/// <param name="fieldname">私有字段名称</param>
/// <param name="value">需要设置的值</param>
public static void SetPrivateField(this Dejun.DataProvider.IDateBuildTable instance, string fieldname, object value)
{
BindingFlags flag = BindingFlags.Instance | BindingFlags.NonPublic;
Type type = instance.GetType();
FieldInfo field = type.GetField(fieldname, flag);
field.SetValue(instance, value);
}
/// <summary>
/// 在插入或修改模型时调用该方法以避免sql语句中传入多余参数以致报错
/// </summary>
/// <param name="instance"></param>
public static void SetInitializedToFalse(this Dejun.DataProvider.IDateBuildTable instance)
{
Type type = instance.GetType();
PropertyInfo[] info = type.GetProperties();
//遍历所有公有属性
for (int i = 0; i < info.Length; i++)
{
if (Convert.ToString(info[i].GetValue(instance, null)) == "")
{
//如果该公有属性的值为空,则根据该公有属性拼接出所对应的私有字段
string propertyName = info[i].Name;
string fieldName = propertyName.Substring(0, 1).ToLower() + propertyName.Substring(1, propertyName.Length - 1) + "_initialized";
//设置对应私有字段的值为false
FieldInfo field = type.GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic);
field.SetValue(instance, false);
}
}
}
/// <summary>
/// 设置iD_initialized值为false
/// </summary>
/// <param name="instance"></param>
public static void SetIdInitializedToFalse(this Dejun.DataProvider.IDateBuildTable instance)
{
Type type = instance.GetType();
type.GetField("iD_initialized", BindingFlags.Instance | BindingFlags.NonPublic).SetValue(instance, false);
}