IsEmpty
如果 CDocBuilderValue 对象为空，则返回 true。
请注意，对于
.docbuilder文件，不使用CDocBuilderValue.IsEmpty方法。
语法
- Python
- C++
- COM
- Java
- .Net
def IsEmpty(self) -> bool
bool IsEmpty();
HRESULT IsEmpty([out, retval] VARIANT_BOOL* result);
boolean isEmpty();
bool IsEmpty();
参数
- COM
| 名称 | 类型 | 描述 |
|---|---|---|
| result | VARIANT_BOOL* | 指定 CDocBuilderValue 对象是否为空。 |
示例
- Python
- C++
- COM
- Java
- .Net
builder = docbuilder.CDocBuilder()
context = builder.GetContext()
globalObj = context.GetGlobal()
bEmpty = globalObj.IsEmpty()
std::wstring sWorkDirectory = NSUtils::GetBuilderDirectory();
CDocBuilder::Initialize(sWorkDirectory.c_str());
CDocBuilder oBuilder;
CContext oContext = oBuilder.GetContext();
CValue oGlobal = oContext.GetGlobal();
bool bEmpty = oGlobal.IsEmpty();
CDocBuilder::Dispose();
CoInitialize(NULL);
IONLYOFFICEDocBuilder* oBuilder = NULL;
IONLYOFFICEDocBuilderContext* oContext = NULL;
IONLYOFFICEDocBuilderValue* oGlobal = NULL;
VARIANT_BOOL b;
oBuilder->Initialize();
oBuilder->GetContext(&oContext);
oContext->GetGlobal(&oGlobal);
oGlobal->IsEmpty(&b);
oBuilder->Dispose();
CDocBuilder.initialize("");
CDocBuilder builder = new CDocBuilder();
CDocBuilderContext context = builder.getContext();
CDocBuilderValue global = context.getGlobal();
boolean bEmpty = global.isEmpty();
CDocBuilder.dispose();
string workDirectory = "C:/Program Files/ONLYOFFICE/documentBuilder";
CDocBuilder.Initialize(workDirectory);
CDocBuilder oBuilder = new CDocBuilder();
CContext oContext = oBuilder.GetContext();
CValue oGlobal = oContext.GetGlobal();
bool bEmpty = oGlobal.IsEmpty();
CDocBuilder.Destroy();