使用 C# 代码从 DYNAMICS 365 crm 检索/获取记录

Question

• 问题1：

  我是 MICROSOFT DYNAMICS CRM 365 的新手。我的 CRM 表很少，例如（帐户，客户）。我想从表帐户中获取所有数据。

以下是我的连接示例代码：（不确定这是否正确，但收到我已连接到 CRM 的输出消息）

public void ConnectToMSCRM(string UserName, string Password, string SoapOrgServiceUri)  
    {  
        try  
        {  
            ClientCredentials credentials = new ClientCredentials();  
            credentials.UserName.UserName = UserName;  
            credentials.UserName.Password = Password;  
            Uri serviceUri = new Uri(SoapOrgServiceUri);  
            OrganizationServiceProxy proxy = new OrganizationServiceProxy(serviceUri, null, credentials, null);  
            proxy.EnableProxyTypes();  
            _services = (IOrganizationService)proxy;  
            Response.Write("Connected to CRM \n");  
}  

我需要在按钮单击事件上检索所有数据。
输出应该是： "select * from ABC" ；

• 问题2：

如果可能，请建议如何使用给定的列名获取记录。
输出应该是： "select * from ABC where ColumnName="test" ；

Answer 1

将所有实体列表提取到列表中

    var allEntities = **GetEntities(_service);**
    foreach (var Entity in allEntities)
    {
        ddlEntityName.Items.Add(Entity.LogicalName);
    }

//单参数函数（oganizationservice作为参数）

//这将从 Microsoft Dynamics CRM 中获取表/实体名称，如 ACCOUNT、CONTACT

public Microsoft.Xrm.Sdk.Metadata.EntityMetadata[] GetEntities(IOrganizationService organizationService)
    {
        Dictionary<string, string> attributesData = new Dictionary<string, string>();
        RetrieveAllEntitiesRequest metaDataRequest = new RetrieveAllEntitiesRequest();
        RetrieveAllEntitiesResponse metaDataResponse = new RetrieveAllEntitiesResponse();
        metaDataRequest.EntityFilters = EntityFilters.Entity;

        XmlDictionaryReaderQuotas myReaderQuotas = new XmlDictionaryReaderQuotas();
        myReaderQuotas.MaxNameTableCharCount = 2147483647;

        // Execute the request.

        metaDataResponse = (RetrieveAllEntitiesResponse)organizationService.Execute(metaDataRequest);

        var entities = metaDataResponse.EntityMetadata;

        return entities.OrderBy(x => x.LogicalName).ToArray();//to arrange in ascending order
    }

Answer 2

查询表达式呢？

这是您的查询：

Select * from ABC where ColumnName="test";

这是QueryExpression ：

QueryExpression query = new QueryExpression()
{
    EntityName = Contact.EntityLogicalName,
    ColumnSet = new ColumnSet("address1_telephone1"),
};

执行查询，这是如何：

DataCollection<Entity> entityCollection = _services.RetrieveMultiple(query).Entities;

// Display the results.
foreach (Contact entity in entityCollection)
{
    Console.WriteLine("my test: {0}", entity.address1_telephone1);
}

问候