2020年5月17日 星期日

vb.net ListView 加到 Excel [Listview export to Excel]

References 裡加入 Microsoft.Office.Interop.Excel.Application()

References->Add->Assemblies->Extensions-> Check Microsoft.Office.Interop.Excel


--------------------------------直接顯示--------------------------------

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    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim MyExcel As New Microsoft.Office.Interop.Excel.Application()

        MyExcel.Application.Workbooks.Add()

        MyExcel.Visible = True


        '獲取標題

        Dim Cols As Integer

        For Cols = 1 To ListView1.Columns.Count

            MyExcel.Cells(1, Cols) = ListView1.Columns(Cols - 1).Text '.Columns(Cols - 1).HeaderText

        Next


        '往excel表裡添加資料()

        Dim i As Integer

        For i = 0 To ListView1.Items.Count - 1

            Dim j As Integer

            For j = 0 To ListView1.Columns.Count - 1

                MyExcel.Cells(i + 2, j + 1) = ListView1.Items.Item(i).SubItems(j).Text


            Next (j)

        Next (i)

    End Sub


--------------------------------存成XLSX--------------------------------

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Imports Microsoft.Office.Interop


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Dim xls As New Excel.Application

        Dim book As Excel.Workbook

        Dim sheet As Excel.Worksheet

        'create a workbook and get reference to first worksheet

        xls.Workbooks.Add()


        book = xls.ActiveWorkbook

        sheet = book.ActiveSheet

        'step through rows and columns and copy data to worksheet

        Dim row As Integer = 1

        Dim col As Integer = 1


        sheet.Range(sheet.Cells(1, 1), sheet.Cells(1, ListView1.Columns.Count)).Merge()

        sheet.Cells(row, col) = Me.Text

        sheet.Cells(row, col).HorizontalAlignment = Excel.Constants.xlCenter

        sheet.Cells(row, col).Font.Size = 20


        row += 2

        col = 1


    sheet.Columns("A:B").ColumnWidth = 20 'AutoFit必需關閉


        For i As Integer = 1 To ListView1.Columns.Count

            sheet.Cells(row, col) = ListView1.Columns.Item(i - 1).Text

            sheet.Cells(row, col).HorizontalAlignment = Excel.Constants.xlCenter

            'sheet.Cells(row, col).Font.Name = "Arial"

            'sheet.Cells(row, col).Font.Bold = True

            'sheet.Cells(row, col).Font.Size = 12

            'sheet.Cells(row, col).Font.ColorIndex = 35

            sheet.Cells(row, col).EntireColumn.AutoFit()

            sheet.Cells(row, col).Interior.ColorIndex = 15

            col = col + 1

        Next

        row += 1

        col = 1


        For Each item As ListViewItem In ListView1.Items

            For i As Integer = 0 To item.SubItems.Count - 1

                sheet.Cells(row, col) = item.SubItems(i).Text

                sheet.Cells(row, col).EntireColumn.AutoFit()

                col = col + 1

            Next

            row += 1

            col = 1

        Next



        With sheet.Range(sheet.Cells(3, 1), sheet.Cells(ListView1.Items.Count + 3, ListView1.Columns.Count))

            With .Borders(Excel.XlBordersIndex.xlEdgeLeft)

                .LineStyle = Excel.XlLineStyle.xlDouble

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

            With .Borders(Excel.XlBordersIndex.xlEdgeTop)

                .LineStyle = Excel.XlLineStyle.xlContinuous

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

            With .Borders(Excel.XlBordersIndex.xlEdgeBottom)

                .LineStyle = Excel.XlLineStyle.xlContinuous

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

            With .Borders(Excel.XlBordersIndex.xlEdgeRight)

                .LineStyle = Excel.XlLineStyle.xlContinuous

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

            With .Borders(Excel.XlBordersIndex.xlInsideVertical)

                .LineStyle = Excel.XlLineStyle.xlContinuous

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

            With .Borders(Excel.XlBordersIndex.xlInsideHorizontal)

                .LineStyle = Excel.XlLineStyle.xlContinuous

                .ColorIndex = 0

                .TintAndShade = 0

                .Weight = Excel.XlBorderWeight.xlThin

            End With

        End With


        'save the workbook and clean up

        sheet.PageSetup.LeftFooter = "-" & Me.Text & "- generado por ""Corporation Inventory Management"""

        book.SaveAs("C:\PDFs\Test.xlsx")

        xls.Workbooks.Close()

        xls.Quit()

        releaseObject(sheet)

        releaseObject(book)

        releaseObject(xls)

    End Sub


    Private Sub releaseObject(ByVal obj As Object)

        'Release an automation object

        Try

            System.Runtime.InteropServices.Marshal.ReleaseComObject(obj)

            obj = Nothing

        Catch ex As Exception

            obj = Nothing

        Finally

            GC.Collect()

        End Try

    End Sub


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