GetAllowedSymbols

返回当前文本字段允许的符号。

语法

expression.GetAllowedSymbols();

expression - 表示 ApiTextForm 类的变量。

参数

此方法没有任何参数。

返回值

string

示例

读取文档中文本字段接受的字符集。

// How do I find out which symbols are permitted in a text field in a document?

// Confirm the character restriction applied to a text entry area in a document.

let doc = Api.GetDocument();
let textForm = Api.CreateTextForm({ key: "Letters", placeholder: "Letters only" });
textForm.SetAllowedSymbols("abcdefghijklmnopqrstuvwxyz");
let allowedSymbols = textForm.GetAllowedSymbols();
let paragraph = doc.GetElement(0);
paragraph.AddText("Allowed symbols: " + allowedSymbols);
paragraph.Push(textForm);