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部分客户在自定义模板时想要实现对话框的功能,用于提示是否保存。
首先我们先了解一下这两个弹窗的本质是什么。
这是一个警告框,即MessageBox。想要调用这样一个MessageBox,可以通过showMessageBox实现。
传参分别是MessageBox的主体文本、标题、图标、成功回调、失败回调、以及下方的按钮类型。
下面这个是一个Template,本质和单元格格式弹窗类似,只不过更加简单一些。想要唤起Template,就需要用到接口showDialog。
API参考链接:显示对话框
这里需要用到 isFileModified 这个属性,判断是否修改。只有当我们判断到表单被修改之后,才会唤起保存弹窗,否则就是直接fromJSON。注意:成功唤起之后,需要将这个data重新置为false。
if (context.getData("isFileModified")) {
A(B, C);
context.setData("isFileModified", false);
} else {
var spread = context.getWorkbook();
spread.fromJSON(json1);
}
唤起MessageBox的操作是在这个 function A 中调用showMessageBox方法,前面两个参数,可以自己传想要的字符串进去,或者直接用我们设计器的resources。
在成功的回调函数 function B 中使用 switch case,在点击是的时候,就唤起保存文件的Template。这里加了一个下载逻辑,可以不用直接下载,后续可以把这个json传给后端保存都是可以的。
function A(callback1, callback2) {
GC.Spread.Sheets.Designer.showMessageBox(
resources.closingNotification,
resources.title,
GC.Spread.Sheets.Designer.MessageBoxIcon.warning,
callback1,
callback2,
2
);
} //定义回调函数
function B(result) {
switch (result) {
case 2 /* yes */:
var dialogOption = {
text: "",
};
GC.Spread.Sheets.Designer.showDialog(
"setText",
dialogOption,
(result) => {
if (!result) {
return;
}
var text = result.text;
var spread = context.getWorkbook();
var testJson = JSON.stringify(spread.toJSON());
console.log(testJson);
funDownload(testJson, text + ".ssjson");
},
(error) => {
console.error(error);
},
checkResult
);
break;
case 3 /* no */:
var spread = context.getWorkbook();
spread.fromJSON(json1);
break;
case 4 /* cancel */:
return;
}
}
function C() {
console.log("我是回调函数2"); //模仿耗时操作
}
Template的定义如下:
var setTextTemplate = {
templateName: "saveFileDialogTemplate",
title: "保存文件",
content: [
{
type: "FlexContainer",
children: [
{
type: "TextBlock",
margin: "0 0 0 10px",
text: "文件名:",
},
{
type: "ColumnSet",
margin: "10px",
children: [
{
type: "Column",
children: [
{
type: "TextEditor",
bindingPath: "text",
margin: "2px 2px 0 0",
},
],
width: "110px",
},
{
type: "Column",
children: [
{
type: "TextBlock",
margin: "6px 2px 0 0",
text: ".ssjson",
},
],
},
{
type: "Column",
children: [
{
type: "TextBlock",
bindingPath: "extName",
style: "line-height:30px",
},
],
width: "auto",
},
],
},
],
},
],
};
最后,注册Template:
GC.Spread.Sheets.Designer.registerTemplate("setText", setTextTemplate);
以上就是实现这个功能的主要思路。
在Demo中可以分别试试两种情况:1、直接点“加载模板”按钮;2、在任意单元格输入值后,再点“加载模板”按钮。
作者: GrapeCity China | 审核:Lynn.Dou | 更新时间:2023.12.22