扩展（继承）实体框架类（不使用部分）
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它是如何开始的？
我想将不在业务objec集合中的两列添加到radGridView中。特别是NewUrl和NewIdOnFilehost。 :)
那我想做什么？
我把它放进网格
radGridViewReuploadStatus.ItemsSource = FileHostings.Filesonic.getdAllDeletedLinks();
<telerik:GridViewColumn Header=\"New F.H.Id\" UniqueName=\"NewFilehostId\" Width=\"*\"></telerik:GridViewColumn>
<telerik:GridViewColumn Header=\"New URL\" UniqueName=\"NewUrl\" Width=\"*\"></telerik:GridViewColumn>
class dlExtended : DownloadLink {
public string NewUrl { get; set; }
public string NewIdOnFilehost { get; set; }
}
public DownloadLinkExtended(DownloadLink origDl){
PropertyInfo[] myObjectProperties = origDl.GetType().GetProperties(); //BindingFlags.Public | BindingFlags.NonPublic
foreach (PropertyInfo pi in myObjectProperties)
{
if (pi.GetValue(origDl, null) != null)
{
pi.SetValue(this, pi.GetValue(origDl, null), null);
}
}
}
没有找到相关结果
已邀请:
2 个回复
陷牡彭拈峰
/// <summary> /// Copy an object to destination object, only matching fields will be copied /// </summary> /// <typeparam name=\"T\"></typeparam> /// <param name=\"sourceObject\">An object with matching fields of the destination object</param> /// <param name=\"destObject\">Destination object, must already be created</param> public static void ShallowCopyTo<T>(this object sourceObject, ref T destObject) { Copy<T>(sourceObject,ref destObject); } /// <summary> /// Copy an object to destination object, only matching fields will be copied /// </summary> /// <typeparam name=\"T\"></typeparam> /// <param name=\"sourceObject\">An object with matching fields of the destination object</param> /// <param name=\"destObject\">Destination object, must already be created</param> public static void Copy<T>(object sourceObject, ref T destObject) { // If either the source, or destination is null, return if (sourceObject == null || destObject == null) return; // Get the type of each object Type sourceType = sourceObject.GetType(); Type targetType = destObject.GetType(); // Loop through the source properties foreach (PropertyInfo p in sourceType.GetProperties()) { // Get the matching property in the destination object PropertyInfo targetObj = targetType.GetProperty(p.Name); // If there is none, skip if (targetObj == null) continue; // Set the value in the destination targetObj.SetValue(destObject, p.GetValue(sourceObject, null), null); } }/// <summary> /// Reference Article http://www.codeproject.com/KB/tips/SerializedObjectCloner.aspx /// /// Provides a method for performing a deep copy of an object. /// Binary Serialization is used to perform the copy. /// </summary> public static class ObjectCopier { /// <summary> /// Perform a deep Copy of the object. /// </summary> /// <typeparam name=\"T\">The type of object being copied.</typeparam> /// <param name=\"source\">The object instance to copy.</param> /// <returns>The copied object.</returns> public static T Clone<T>(this T source) { if (!typeof(T).IsSerializable) { throw new ArgumentException(\"The type must be serializable.\", \"source\"); } // Don\'t serialize a null object, simply return the default for that object if (Object.ReferenceEquals(source, null)) { return default(T); } IFormatter formatter = new BinaryFormatter(); Stream stream = new MemoryStream(); using (stream) { formatter.Serialize(stream, source); stream.Seek(0, SeekOrigin.Begin); return (T)formatter.Deserialize(stream); } }磨标烫徽啪
var newthings = oldlinks.Select(old => new dlExtended{ NewUrl =old.NewUrl , NewIdOnFilehost =old.NewIdOnFilehost });将属性复制放在一个地方。 您还可以构建通用扩展方法，以在两个对象之间复制具有相同名称的属性，并以多种方式使用该属性。