Excel에서 Angular 그리드 붙여넣기
The Ignite UI for Angular IgxGrid can read Excel data that is copied to the clipboard. In this section we will show you how to do this with some custom code.
Angular Paste from Excel Example
This sample demonstrates how to implement pasting from Excel into the igxGrid Material UI table.
To work with the sample open up any Excel spreadsheet, copy some rows, and paste it into the grid using the keyboard (Ctrl + V, Shift + Insert, Command + V).
상단에는 2가지 옵션이 있는 드롭다운 버튼이 있습니다.
- "데이터를 새 행으로 붙여넣기" – 이 모드에서는 Excel에서 복사한 모든 데이터가 그리드에 새 행으로 추가됩니다.
- "활성 셀부터 붙여넣기" - 이 모드에서는 그리드의 데이터를 덮어씁니다.
붙여넣기 후의 새 데이터는 기울임꼴로 장식됩니다.
Usage
You should add the paste-handler directive (you can find its code in the next section) to the igxGrid and handle its onDataProcessed event. The onDataProcessed event has one parameter that gives you access to the Excel data in the form of an array. For reference see the addRecords and updateRecords methods.
<igx-grid #grid1 [data]="data" [width]="'100%'" [height]="'505px'" [autoGenerate]="false" paste-handler (onDataProcessed)="dataPasted($event)" [primaryKey]="'ID'">
<igx-column [field]="'Name'"></igx-column>
<igx-column [field]="'Title'"></igx-column>
<igx-column [field]="'Phone'"></igx-column>
<igx-column [field]="'Country'"></igx-column>
</igx-grid>
public dataPasted(processedData) {
if (this.pasteMode === "Paste data as new records") {
this.addRecords(processedData);
} else {
this.updateRecords(processedData);
}
}
public addRecords(processedData: any[]) {
const columns = this.grid1.visibleColumns;
const pk = this.grid1.primaryKey;
const addedData = [];
for (const curentDataRow of processedData) {
const rowData = {};
for (const col of columns) {
rowData[col.field] = curentDataRow[col.visibleIndex];
}
// generate PK
rowData[pk] = this.grid1.data.length + 1;
this.grid1.addRow(rowData);
addedData.push(rowData);
this.grid1.cdr.detectChanges();
}
// scroll to last added row
this.grid1.verticalScrollContainer.scrollTo(this.grid1.data.length);
this.grid1.verticalScrollContainer.chunkLoad.pipe(take(1)).subscribe(() => {
this.clearStyles();
for (const data of addedData) {
const row = this.grid1.getRowByKey(data[pk]);
if (row) {
row.nativeElement.style["font-style"] = "italic";
row.nativeElement.style.color = "gray";
}
}
});
}
public updateRecords(processedData: any[]) {
const cell = this.grid1.selectedCells[0];
const pk = this.grid1.primaryKey;
if (!cell) { return; }
const rowIndex = cell.row.index;
// const rowPkValue = cell.row.data[pk];
const cellIndex = cell.column.visibleIndex;
const columns = this.grid1.visibleColumns;
let index = 0;
const updatedRecsPK = [];
for (const curentDataRow of processedData) {
const rowData = {};
const dataRec = this.grid1.data[rowIndex + index];
const rowPkValue = dataRec ? dataRec[pk] : this.grid1.data.length + 1;
rowData[pk] = rowPkValue;
for (let j = 0; j < columns.length; j++) {
let currentCell;
if (j >= cellIndex) {
currentCell = curentDataRow.shift();
}
const colKey = columns[j].field;
rowData[colKey] = currentCell || (!!dataRec ? dataRec[colKey] : null);
}
if (!dataRec) {
// no rec to update, add instead
rowData[pk] = rowPkValue;
this.grid1.addRow(rowData);
continue;
}
this.grid1.updateRow(rowData, rowPkValue);
this.grid1.cdr.detectChanges();
updatedRecsPK.push(rowPkValue);
index++;
}
this.clearStyles();
for (const pkVal of updatedRecsPK) {
const row = this.grid1.getRowByKey(pkVal);
if (row) {
row.nativeElement.style["font-style"] = "italic";
row.nativeElement.style.color = "gray";
}
}
}
protected clearStyles() {
for (const row of this.grid1.rowList.toArray()) {
row.nativeElement.style["font-style"] = "";
row.nativeElement.style.color = "";
}
}
Paste Handler Directive
This is the paste-handler implementation. The code creates a DOM textarea element which is used to receive the pasted data from the clipboard. When the data is pasted in the textarea the directive parses it into an array and then emits a custom event onDataProcessed passing the parsed data.
import { Directive, EventEmitter, HostListener, Output} from "@angular/core";
@Directive({ selector: "[paste-handler]" })
export class PasteHandler {
public textArea;
@Output()
public onDataProcessed = new EventEmitter<any>();
public ngOnInit(): void {
const div = document.createElement("div");
const divStyle = div.style;
divStyle.position = "fixed";
document.body.appendChild(div);
this.textArea = document.createElement("textarea");
const style = this.textArea.style;
style.opacity = "0";
style.height = "0px";
style.width = "0px";
style.overflow = "hidden";
div.appendChild(this.textArea);
this.textArea.addEventListener("paste", (eventArgs) => { this.onPaste(eventArgs); });
}
@HostListener("focusin", ["$event"])
public focusIn(eventArgs) {
}
@HostListener("keydown", ["$event"])
public ControlV(eventArgs) {
const ctrl = eventArgs.ctrlKey;
const key = eventArgs.keyCode;
// Ctrl-V || Shift-Ins || Cmd-V
if ((ctrl || eventArgs.metaKey) && key === 86 || eventArgs.shiftKey && key === 45) {
this.textArea.focus();
}
}
public onPaste(eventArgs) {
let data;
const clData = "clipboardData";
// get clipboard data - from window.cliboardData for IE or from the original event's arguments.
if (window[clData]) {
window.event.returnValue = false;
data = window[clData].getData("text");
} else {
data = eventArgs[clData].getData("text/plain");
}
// process the clipboard data
const processedData = this.processData(data);
this.onDataProcessed.emit(processedData);
}
public processData(data) {
const pasteData = data.split("\n");
for (let i = 0; i < pasteData.length; i++) {
pasteData[i] = pasteData[i].split("\t");
// Check if last row is a dummy row
if (pasteData[pasteData.length - 1].length === 1 && pasteData[pasteData.length - 1][0] === "") {
pasteData.pop();
}
// remove empty data
if (pasteData.length === 1 &&
pasteData[0].length === 1 &&
(pasteData[0][0] === "" || pasteData[0][0] === "\r")) {
pasteData.pop();
}
}
return pasteData;
}
}
API References
Additional Resources
- Excel 내보내기- Excel 내보내기 서비스를 사용하여 IgxGrid에서 Excel로 데이터를 내보냅니다. 또한 IgxGrid에서 선택한 데이터만 내보내는 옵션도 제공합니다. 내보내기 기능은 IgxExcelExporterService 클래스에 캡슐화되어 있으며 데이터는 MS Excel 테이블 형식으로 내보내집니다. 이 형식을 사용하면 필터링, 정렬 등과 같은 기능을 사용할 수 있습니다. 이렇게 하려면 IgxExcelExporterService의 내보내기 메소드를 호출하고 IgxGrid 구성 요소를 첫 번째 인수로 전달해야 합니다.
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