Clear

清除当前表单。

继承自 ApiFormBase.Clear。

语法

expression.Clear();

expression - 表示 ApiCheckBoxForm 类的变量。

参数

此方法没有任何参数。

返回值

boolean

示例

在文档中取消勾选已勾选的复选框表单字段。

// How do I reset a checkbox back to its unchecked state in a document?

// Remove a previously selected answer from a radio button group so the form appears blank again in a document.

let doc = Api.GetDocument();
let checkBoxForm = Api.CreateCheckBoxForm({"key": "Marital status", "tip": "Specify your marital status", "required": true, "placeholder": "Marital status", "radio": true});
let paragraph = doc.GetElement(0);
paragraph.AddElement(checkBoxForm);
paragraph.AddText(" Married");
paragraph.AddLineBreak();
checkBoxForm = Api.CreateCheckBoxForm({"key": "Marital status", "tip": "Specify your marital status", "required": true, "placeholder": "Marital status", "radio": true});
paragraph.AddElement(checkBoxForm);
paragraph.AddText(" Single");
checkBoxForm.SetChecked(true);
checkBoxForm.Clear();
paragraph = Api.CreateParagraph();
paragraph.AddText("The second form from this document was cleared.");
doc.Push(paragraph);