RemoveAllElements

从当前文本块中移除所有元素。

语法

expression.RemoveAllElements();

expression - 表示 ApiRichRun 类的变量。

参数

此方法没有任何参数。

返回值

boolean

示例

在 PDF 中清除文本块的所有子元素。

// How do I remove everything inside a text run in a PDF?

// Delete all subelements contained within a text element in a PDF.

let doc = Api.GetDocument();
let freeTextAnnot = Api.CreateFreeTextAnnot([160, 50, 360, 135]);
let page = doc.GetPage(0);
page.AddObject(freeTextAnnot);
freeTextAnnot.SetIntent("freeTextCallout");
freeTextAnnot.SetCallout([{x: 161, y: 51}, {x: 249, y: 125}, {x: 261, y: 125}]);
freeTextAnnot.SetRectDiff([100, 64, 0.5, 0.5]);

let richContent = freeTextAnnot.GetContent();
let para = richContent.GetElement(0);
let run = para.GetElement(0);
run.AddText("Some example text");
run.RemoveAllElements();

console.log("We removed all element from rich run object");