从插件发送消息到表单不适用于空值

Question

我正在将自定义消息从插件（进行一些验证）发送回 CRM 表单。

这是我在预更新和 post-Create 上执行的插件代码：

//GetAccounts is a simple method to return accounts based in specified crtitias. 
//In Update event, it will add an extra filter to exclude the current account...
const string DupeFieldName = "new_approval_status";

if (xrmObjects.PluginContext.PrimaryEntityName == Xrm.Account.EntityLogicalName && xrmObjects.PluginContext.Depth == 1 && (xrmObjects.PluginContext.MessageName == "Update" || xrmObjects.PluginContext.MessageName == "Create"))
{
    Entity account;
    account = (Entity)xrmObjects.PluginContext.InputParameters["Target"];

    if (account.Attributes.Contains("name"))
    {
        if (GetAccounts(account, xrmObjects.PluginContext.MessageName, "name", account["name"], xrmObjects.Service).Entities.Count > 0)
        {
            SetDupeMessage(account, Name);
            return;
        }
    }

    if (account.Attributes.Contains("websiteurl"))
    {
        if (GetAccounts(account, xrmObjects.PluginContext.MessageName, "websiteurl", account["websiteurl"], xrmObjects.Service).Entities.Count > 0)
        {
            SetDupeMessage(account, WebSiteExist);
            return;
        }
    }

    if (account.Attributes.Contains("new_linkedin"))
    {
        if (GetAccounts(account, xrmObjects.PluginContext.MessageName, "new_linkedin", account["new_linkedin"], xrmObjects.Service).Entities.Count > 0)
        {
            SetDupeMessage(account, LinkedIn);
            return;
        }
    }


    account[DupeFieldName] = string.Empty;

}

设置属性值的简单方法...

private void SetDupeMessage(Entity account, string message)
{
    account[DupeFieldName] = message;
    account["new_approved"] = false;
}

在我的表单中，我将此事件处理程序放在 new_approval_status 的 onChange 事件上：

function dupeDetected(context) {

    var dupeStatus = Xrm.Page.getAttribute('new_approval_status').getValue();

    if (!dupeStatus || dupeStatus == '') {
        Notify.remove('duplicateWarning'); //Notify is a library that adds notification at form level...
        return;
    }

    var messageParts = dupeStatus.split('|');
    var message = messageParts[1];
    var fieldName = messageParts[0];

    Notify.add(message, 'ERROR', 'duplicateWarning', null);

};

当 new_approval_status 从 null、空变为某物时，这会很好地触发。但是它不会反过来触发，一个字符串到一个空字符串或null。

在我的插件中，我尝试将 new_approval_status 设置为 string.Empty 或 null，但事件不会以这种方式触发。

有什么想法吗？

Answer 1

您可以将字段设置为类似 OK 的内容。

这也可以保证您的代码正常工作 ("is the field empty because it's supposed to be, or something is missing and it isn't being filled ?")

从插件发送消息到表单不适用于空值

Sending message from plugin to form not working for empty values

javascript

c#

dynamics-crm-2016