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       
(Showing Draft Content)

クロス列

テーブルシートは、複数の関連するテーブルのフィールドを単一の行ビューで表示するクロス列機能を提供します。データ入力のために、テーブルシートをより合理化された行ビューで表示できます。

クロス列を設定するには、 addView メソッドにフィールドを追加する際、各フィールドのcrossプロパティを使用します。crossプロパティはフィールド、属性、フィルター、およびキャプションを設定するのに役立ちます。

次の手順は、テーブルシートに、「package」フィールドの配列値を使用してクロス列を追加します。

  1. データソーススキーマにcolumnsオプションを持つ複数テーブルを追加します。

    スキーマでルックアップとして定義されているフィールドのみをクロス列に使用できます。

    // dataManagerに顧客テーブルを追加します。
    var customerTable = dataManager.addTable("customerTable", {
        remote: {
            read: {
                url: 'https://demodata.grapecity.com/wwi/api/v1/customers'
    
            }
        }
    });
    
    // dataManagerに販売テーブルを追加します。
    var salesTable = dataManager.addTable("salesTable", {
        remote: {
            read: {
                url: 'https://demodata.grapecity.com/wwi/api/v1/sales?PageNumber=10&PageSize=500'
            }
        },
        schema:{
            columns:{
                package: { lookup: ["Each","Pair"] }, // used for cross column feature
            }
        }
    });
  2. テーブルの主キーを指定します。

    customerTable.primaryKey("customerKey")
    salesTable.primaryKey("saleKey")
  3. テーブル間にリレーションを追加します。

    // 販売テーブルと顧客テーブルのリレーションを追加します。
    dataManager.addRelationship(salesTable, "customerKey", "myCustomer", customerTable, "customerKey", "mySales");
  4. クロス列オプションを持つカスタムビューを追加します。

    // カスタムビューを追加します。
    customerTable.fetch().then(function () {
        var selectView = customerTable.addView("customersView",
            [
                { value: 'customerKey' },
                { value: 'customer' },
                { value: 'billToCustomer' },
                { value: 'category' },
            ]);
        // リレーショナルビューで使用する複数列のドロップダウンを作成します。
        var multiSelectStyle = {
            formatter: '{{=IFERROR(CONCAT(PROPERTY(@, "customer"), ", ", PROPERTY(@, "customerKey")), "")}}',
            cellButtons: [
                {
                    imageType: "dropdown",
                    command: "openMultiColumn",
                    useButtonStyle: true,
                }
            ],
            dropDowns: [
                {
                    type: "multiColumn",
                    option: {
                        width: 400,
                        height: 300,
                        dataSource: selectView,
                        bindingInfos: [
                            { name: "customerKey", size: 100, caption: "Customer Key" },
                            { name: "customer", size: "*", caption: "Customer" },
                            { name: "category", size: 100, caption: "Category" }
                        ]
                    }
                }
            ]
        };
        var myView = salesTable.addView("myView", [
            { value: "saleKey", width: 100, caption: "Sale Key" },
            { value: "salesPerson", width: 150, caption: "Sales Person" },
            { value: "myCustomer", width: 250, caption: "Customer Information", style: multiSelectStyle },
            { value: "address", width: 300, caption: "Address" },
            { value: "stockItem", width: 350, caption: "Stock Item" },
            { value: 'quantity', width: 80,cross: { over: 'package' } } // クロス列
        ]);
        myView.fetch().then(function () {
            console.log(myView);
            // カスタムビューをテーブルシートに設定します。
            tableSheet.setDataView(myView);
        });
    });

上記の手順に従うと、以下の出力が生成されます。

SpreadJS TableSheet Cross Column Example

クロス列機能を使用しない場合は、次のように表示されます。

non-cross-column

テーブルシートパネルの使用

テーブルシートでサイドパネルを使用することによりクロス列を設定できます。データソーススキーマを定義する際に、columnsオプションにlookupプロパティを設定する必要があります。

次の画像で示すように、クロス列を作成するには、lookupフィールドをクリックすることによりクロス領域を表示して、対象のフィールドをValue領域にドラッグします。

SpreadJS TableSheet Cross Column Panel

以下の出力が生成されます。

SpreadJS TableSheet Cross Column Output