[MSCE C++]添加EC属性后如何保持元素名称不变?

插入EC属性后,怎么才能不显示ecclass名称,下面是我的代码

var ecSchema = new ECSchema("TestSchema", 1, 1, "zfgk");
var ecClass = new ECClass("TestClass");

var specification = new InstanceLabelSpecification("false").CreatePopulatedCustomAttributeInstance();
ecClass.SetCustomAttribute(specification);

ecClass.Add(new ECProperty("TestProperty", ECObjects.StringType));
ecSchema.AddClass(ecClass);

var status = DgnECManager.Manager.ImportSchema(ecSchema, ActiveDgnFile, new ImportSchemaOptions());
if (status == SchemaImportStatus.Success)
{
    ECXAttributes.AppendInstance(element, ecClass.CreateInstance());
    dgnElementSetTool.DoExitTool();
}

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