英文:
I am getting exception while creating new account in Dynamics 365 CRM via Microsoft.PowerPlatform.Dataverse.Client
问题
我正在使用以下代码创建新帐户：
string cs = "connection";
ServiceClient serviceClient = new(cs);
Entity account = new("account");
account.Attributes.Add("name", "name");
account.Id = Guid.NewGuid();
account["custom_attribute1"] = "custom_attribute1";
account.Attributes.Add(new KeyValuePair<string, object>("custom_attribute2", custom_attribute2.Admin));
// serviceClient.Update(account);
serviceClient.Create(account);
我正在重构旧解决方案，在那里我们有一些自定义属性，其值是枚举值。出于某种原因，当我像这样添加它时，它不起作用。我尝试使用整数和字符串值，但没有任何变化。
我收到以下错误消息：
未处理的异常。System.ArgumentNullException：值不能为空（参数 'value'）
在 Microsoft.PowerPlatform.Dataverse.Client.ServiceClient.Create(Entity entity)
异常消息远不如我希望的那样清晰，所以我在调试方面遇到困难。如果有人能够帮助我，我将不胜感激。
英文:
I am creating new account using this code:
string cs = "connection";
ServiceClient serviceClient = new(cs);
Entity account = new("account");
account.Attributes.Add("name", "name");
account.Id = Guid.NewGuid();
account["custom_attribute1"] = "custom_attribute1";
account.Attributes.Add(new KeyValuePair<string, object>("custom_attribute2", custom_attribute2.Admin));
// serviceClient.Update(account);
serviceClient.Create(account);
I am refactoring old solution and there we had some custom attributes where value is Enum value. For some reason when I add it like this it's not working. I tried to use integer and string values but nothing changed.
I get this error:
> Unhandled exception. System.ArgumentNullException: Value cannot be null. (Parameter 'value')
> at Microsoft.PowerPlatform.Dataverse.Client.ServiceClient.Create(Entity entity)
Exception message is by far not clear as I wanted it to be so I am struggling with debugging. I'd appreciate it if somebody can assist me
答案1
得分: 1
首先，您需要检查连接是否正常工作，通常在初始化ServiceClient之后执行WhoAmIRequest来进行检查：
WhoAmIResponse response = serviceClient.Execute(new WhoAmIRequest());
如果这部分代码不引发异常，那么连接正常工作。
要创建一个帐户，最简单的代码如下：
Entity account = new Entity("account");
account["name"] = "TEST";
serviceClient.Create(account);
如果您在更新特定属性时遇到问题，需要检查属性类型。例如，如果是OptionSet/Choice（您提到Enum，它包含一个数值），语法将如下所示（假设要设置的值为2）：
account["custom_attribute1"] = new OptionSetValue(2);
英文:
First of all you need to check if the connection works correctly, normally you do a WhoAmIRequest after you initialize the ServiceClient
WhoAmIResponse response = serviceClient.Execute(new WhoAmIRequest());
if this piece doesn't throw an exception the connection works.
In order to create an account the simplest code is:
Entity account = new Entity("account");
account["name"] = "TEST";
serviceClient.Create(account);
if you have problems to update a specific attribute, you need to check the attribute type, if for example is an OptionSet/Choice (you mentioned Enum that holding a numeric value can be connected) the syntax would be (assuming the value you want to put is 2):
account["custom_attribute1"] = new OptionSetValue(2);
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