RemoveAllElements

从当前文本块中移除所有元素。

语法

expression.RemoveAllElements();

expression - 表示 ApiRun 类（文本块）的变量。

参数

此方法没有任何参数。

返回值

boolean

示例

清除 PDF 中文本部分的所有内容。

// How do I remove all text from a text run in a PDF?

// Delete every item inside a text section in a PDF.

const doc = Api.GetDocument();
const page = doc.GetPage(0);

const fill = Api.CreateSolidFill(Api.RGB(255, 111, 61));
const stroke = Api.CreateStroke(0, Api.CreateNoFill());
const shape = Api.CreateShape("flowChartMagneticTape", 150 * 36000, 65 * 36000, fill, stroke);
shape.SetPosition(608400, 1267200);

const docContent = shape.GetContent();
const paragraph = docContent.GetElement(0);
const run = Api.CreateRun();
run.AddText("This is just a sample text.");
run.RemoveAllElements();
run.AddText("All elements from this run were removed before adding this text.");
paragraph.AddElement(run);
page.AddObject(shape);