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在日常的使用中可能会遇到诸如此类,在某一个工作表显示特殊的菜单项,其他工作表不显示的需求
例如:工作表中有两个Sheet,一个用于报表展示,一个用于数据填报。在数据填报的Sheet中需要在右键菜单中定制一些特殊的菜单选项,这些选项只会在Sheet是填报的时候显示出来。
这种差异化菜单显示的需求,可以使用下面的解决方案。
右键菜单需要将点击后执行的代码封装成一个命令(command)去执行,这里首先创建对应菜单项执行的命令。
var newMenuItem = {
canUndo: true,
name: "newMenuItem",
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);
alert("添加的新右键菜单项");
Commands.endTransaction(context, options);
return true;
}
}
};
建立好执行的命令之后需要进行注册,注册到SpreadJS的命令管理器(commandManager)中,这样就能在之后被调用。
spread.commandManager().register("newMenuItem", newMenuItem);
onOpenMenu方法会在弹出右键菜单时被调用,该方法可用于筛选将要弹出的菜单选项。在方法中判断一下当前的工作表是否需要展示特殊菜单项。
function MyContextMenu() { }
MyContextMenu.prototype = new GC.Spread.Sheets.ContextMenu.ContextMenu(spread);
MyContextMenu.prototype.onOpenMenu = function (menuData, itemsDataForShown, hitInfo, spread) {
var sheetIndex = spread.getActiveSheetIndex()
// 如果为sheet1,则添加新项
if (sheetIndex == 0) {
itemsDataForShown.push({
text: "新项",
name: "newItem",
command: "newMenuItem",
workArea: "viewportcolHeaderrowHeaderslicercorner"
});
}
};
var contextMenu = new MyContextMenu();
spread.contextMenu = contextMenu;
运行效果如下图所示:
完整demo请点击此处
用户在填写文件时,大部分行列都已经确定,只需要按照提示填写即可。但部分行列,允许添加同级别下的行,做数据扩展。这就要求用户在点击部分行头时,可以正常添加行。
本文会详细讲解该需求的实现方式。
自定义设计器右键菜单,注册自定义添加行命令,当用户点击行头,且行头索引为2(选中第三行)时,显示自定义添加行菜单项。
而选中其它区域时,右键菜单不会显示自定义菜单项。同时,根据自己的需求,可选择是否需要去掉原有的删除行功能。
let designer = new GC.Spread.Sheets.Designer.Designer("designer-container")
let config = JSON.parse(JSON.stringify(GC.Spread.Sheets.Designer.DefaultConfig))
// 控制自定义右键菜单显示条件
let insertRowActive = "insertRowActive"
let customeAddRow = {
"text":"自定义添加行",
commandName:"customeAddRow",
iconClass:"gc-spread-new",
className:"customer-css",
// ClickRowHeader && !AllowInsertCopiedCutCells为行头选中条件,insertRowActive为自定义条件
visibleContext : `ClickRowHeader && !AllowInsertCopiedCutCells && ${insertRowActive}`,
execute:(context) => {
let sheet = context.getWorkbook().getActiveSheet()
if(sheet.getActiveRowIndex()==2){
sheet.addRows(3,1)
}else{
alert("该区域不支持添加行")
}
}
}
// 追加自定义命令
config.contextMenu.push("customeAddRow")
config.commandMap = {
customeAddRow
}
designer.setConfig(config)
let spread = designer.getWorkbook();
let designerOnOpenMenu = spread.contextMenu.onOpenMenu;
spread.contextMenu.onOpenMenu = function (menuData, menuDataForShown, hitTest, workbook){
let designer = GC.Spread.Sheets.Designer.findControl("designer-container");
let sheet = workbook.getActiveSheet();
if(sheet.getActiveRowIndex()==2){
designer.setData(insertRowActive,true);
}else{
designer.setData(insertRowActive,false);
}
designerOnOpenMenu.apply(this, arguments);
}
let sheet = spread.getActiveSheet()
sheet.getRange(2,-1,2,-1).backColor("pink")
效果如下图:
详细的实现方案参考Demo:设计器自定义右键菜单-局部行显示。
作者: Grapecity.China | 审核:Clark.Pan | 更新时间:2023.09.04