使用c#将对象属性分配给SAP中的String变量

本文关键字:SAP 中的 String 变量 分配 对象 属性 使用 | 更新日期: 2023-09-27 18:24:00

假设我创建了一个对象名oItem。这有很多属性,比如ItemCodeItemName。。。。。(约300)。我想为这些属性中的一些属性分配新的值,这些属性是由我的应用程序的用户选择的。用户将以字符串形式提供这些属性名称。

例如:string attribute1 = "ItemCode"

现在我想做的是给这个属性赋值,比如:

oItem.attribute1 = "01234";

有办法做这样的事情吗?我知道你可以将c函数调用转换为字符串。因此,我认为这也是可能的。如有任何帮助,我们将不胜感激。谢谢

更新:这是我的SAP附加组件的一部分。所以这些属性来自数据库表。困难的是,用户可以添加更多的列(用户定义的字段),这增加了属性的数量,而且我只知道最初的300个属性。

使用c#将对象属性分配给SAP中的String变量

如果你有300个属性,你真的应该重构这个类。我认为在这种情况下你可以使用Dictionarystring, string>

Dictionary<string, string> Items = new Dictionary<string, string> 
{
    {"attribute1", "01234"}, {"attribute2", "56789"}, {"attribute3", "76543"}, // ...
};

您可以非常有效地访问值:

string attribute1 = Items["attribute1"];

或者以类似的方式添加/修改它们:

Items["attribute4"] = "23456";

为了让您更轻松,C#中有一个"dynamic"关键字。msdn动态对象文章示例:

// The class derived from DynamicObject.
public class DynamicDictionary : DynamicObject
{
    // The inner dictionary.
    Dictionary<string, object> dictionary
        = new Dictionary<string, object>();
    // This property returns the number of elements
    // in the inner dictionary.
    public int Count
    {
        get
        {
            return dictionary.Count;
        }
    }
    // If you try to get a value of a property 
    // not defined in the class, this method is called.
    public override bool TryGetMember(
        GetMemberBinder binder, out object result)
    {
        // Converting the property name to lowercase
        // so that property names become case-insensitive.
        string name = binder.Name.ToLower();
        // If the property name is found in a dictionary,
        // set the result parameter to the property value and return true.
        // Otherwise, return false.
        return dictionary.TryGetValue(name, out result);
    }
    // If you try to set a value of a property that is
    // not defined in the class, this method is called.
    public override bool TrySetMember(
        SetMemberBinder binder, object value)
    {
        // Converting the property name to lowercase
        // so that property names become case-insensitive.
        dictionary[binder.Name.ToLower()] = value;
        // You can always add a value to a dictionary,
        // so this method always returns true.
        return true;
    }
}
class Program
{
    static void Main(string[] args)
    {
        // Creating a dynamic dictionary.
        dynamic person = new DynamicDictionary();
        // Adding new dynamic properties. 
        // The TrySetMember method is called.
        person.FirstName = "Ellen";
        person.LastName = "Adams";
        // Getting values of the dynamic properties.
        // The TryGetMember method is called.
        // Note that property names are case-insensitive.
        Console.WriteLine(person.firstname + " " + person.lastname);
        // Getting the value of the Count property.
        // The TryGetMember is not called, 
        // because the property is defined in the class.
        Console.WriteLine(
            "Number of dynamic properties:" + person.Count);
        // The following statement throws an exception at run time.
        // There is no "address" property,
        // so the TryGetMember method returns false and this causes a
        // RuntimeBinderException.
        // Console.WriteLine(person.address);
    }
}
// This example has the following output:
// Ellen Adams
// Number of dynamic properties: 2

对于SAP B1插件来说,使用c#和所提供的库函数确实很容易做到这一点。只需包含using SAPbobsCOM;

然后你可以按照

yourobject.UserFields.Fields.Item("attribute").Value = "value";