如何将 ExpandoObject 添加到现有的 ExpandoObject？

Question

这是我的代码：

dynamic App = new ExpandoObject();
//App names are SAP, CRM and ERP 

//App names - adding static
//App.SAP = new ExpandoObject();
//App.CRM = new ExpandoObject();
//App.ERP = new ExpandoObject();

在最后 4 行中，我添加了一个 ExpandoObject 静态，因为我之前知道应用名称。但我想动态地执行此操作。

我可以为属性做动态的：

AddProperty(App.SAP, "Name", "sap name");
AddProperty(App.SAP, "UserID", "sap userid");
AddProperty(App.SAP, "EmailID", "userid@sap.com");
AddProperty(App.SAP, "GroupOf", "group1, group2, group3");


public static void AddProperty(ExpandoObject expando, string propertyName, object propertyValue)
{
    // ExpandoObject supports IDictionary so we can extend it like this
    var expandoDict = expando as IDictionary<string, object>;
    if (expandoDict.ContainsKey(propertyName))
        expandoDict[propertyName] = propertyValue;
    else
        expandoDict.Add(propertyName, propertyValue);
}

但我需要将此对象 App.SAP 添加到此 App，它也是一个 ExpandoObject，因此我可以稍后动态添加 App.CRM 或 App.ERP。

Answer 1

你会得到

ExpandoObject doesn't have a definition for SAP...

采用这种方法：

AddProperty(App.SAP, "Name", "sap name");

因为您没有声明 APP ExpandoObject 中的SAP。

相反，您可以尝试通过提供 parentName 来修改 AddProperty 方法并处理嵌套对象。

AddProperty(App, "SAP", "Name", "sap name");
AddProperty(App, "SAP", "UserID", "sap userid");
AddProperty(App, "SAP", "EmailID", "userid@sap.com");
AddProperty(App, "SAP", "GroupOf", "group1, group2, group3");

public static void AddProperty(ExpandoObject expando, string parentName, string propertyName, object propertyValue)
{
    // ExpandoObject supports IDictionary so we can extend it like this
    var expandoDict = expando as IDictionary<string, object>;
    if (expandoDict.ContainsKey(parentName))
    {
        ((IDictionary<string, object>)expandoDict[parentName])[propertyName] = propertyValue;
    }
    else
    {
        Dictionary<string, object> child = new Dictionary<string, object>
        {
            { propertyName,  propertyValue }
        };
            
        expandoDict.Add(parentName, child);
    }
}

Sample program

如何将 ExpandoObject 添加到现有的 ExpandoObject？

How can I add a ExpandoObject to an already existing ExpandoObject?

c#

expandoobject