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SpreadJS右键菜单插入功能默认逻辑为向上插入一行,这个行为是与Excel保持一致的。
在特定情况下,希望实现在下方插入行的功能。
SpreadJS虽然没有直接提供在下方插入行的API,不过可以通过重写右键菜单插入行选项来实现这个需求。
1、首先来定义向下插入行的命令,在execute 添加我们想执行的方法,在本例就是 在选中行下方插入行的方法。
我们已经知道,SpreadJS默认就是在选中行的上一行插入的,所以实现思路就是从选中行的下一行 开始插入指定行数。
听着有点绕,参考下方代码就容易理解了。
var insertRowsBelow = {
canUndo: true,
name: "insertRowsBelow",
execute: function (context, options, isUndo) {
var Commands = GC.Spread.Sheets.Commands;
if (isUndo) {
Commands.undoTransaction(context, options);
return true;
} else {
Commands.startTransaction(context, options);
var sheet = context.getSheetFromName(options.sheetName);
sheet.suspendPaint();
console.log(options.selections)
//向下插入行
if (options.selections && options.selections.length) {
var row = options.selections[0].row + 1;
var rowCount = options.selections[0].rowCount;
sheet.addRows(row, rowCount);
}
sheet.resumePaint();
Commands.endTransaction(context, options);
return true;
}
}
};
2、注册该命令
spread.commandManager().register("insertRowsBelow", insertRowsBelow);
3、替换原有的插入命令
function MyContextMenu() {}
MyContextMenu.prototype = new GC.Spread.Sheets.ContextMenu.ContextMenu(spread);
MyContextMenu.prototype.onOpenMenu = function (menuData, itemsDataForShown, hitInfo, spread) {
itemsDataForShown.forEach(function (item, index) {
if (item && item.name === "gc.spread.insertRows") {
item.command = "insertRowsBelow"
}
});
};
var contextMenu = new MyContextMenu();
spread.contextMenu = contextMenu;
现在就实现了向下插入行的需求了,如下图:
完整代码可参考附件demo。
希望在在线表格编辑器中实现向下插入行的功能
在线表格编辑器右键菜单添加新项与SpreadJS有所不同,需要在config的基础上进行修改。
1、定义右键菜单结构
config.commandMap = {
Welcome: {
title: "Welcome",
text: "Welcome",
iconClass: "ribbon-button-welcome",
bigButton: "true",
commandName: "Welcome",
execute: async (context, propertyName, fontItalicChecked) => {
}
},
myCmd: {
text: "向下插入行",
commandName: "myCmd",
visibleContext: "ClickRowHeader",
execute: async (context, propertyName, fontItalicChecked) => {
var spread = context.getWorkbook();
spread.commandManager().execute({
cmd: "insertRowsBehind"
})
}
}
}
2、右键菜单添加新项
config.contextMenu.splice(26,0,"myCmd");
3、初始化设计器
var d = new GC.Spread.Sheets.Designer.Designer(document.getElementById("gc-designer-container"), config);
var spread = d.getWorkbook();
4、定义和注册insertRowsBehind命令
spread.commandManager().register("insertRowsBehind", {
canUndo: true,
execute: function (context, options, isUndo) {
var Commands = GC.Spread.Sheets.Commands;
// 在此加cmd
options.cmd = "insertRowsBehind";
if (isUndo) {
Commands.undoTransaction(context, options);
return true;
} else {
var sheet = spread.getActiveSheet();
// 注意:需要在options中定义sheetName,否则撤销行为可能无效。
options.sheetName = sheet.name();
Commands.startTransaction(context, options);
var sels = sheet.getSelections();
if (sels && sels.length > 0) {
for (var i = 0; i < sels.length; i++) {
var sel = sels[i];
var row = sel.row;
var rowCount = sel.rowCount;
sheet.addRows(row + 1, rowCount);
}
}
Commands.endTransaction(context, options);
return true;
}
}
});
最终效果如下图:
完整代码可以查看下面附件:
作者: Lynn.Dou | 审核:Clark.Pan | 更新时间:2023.09.04