如何在 Excel 中取消隱藏所有行

using IronXL;

// Load an existing Excel workbook
// This creates a WorkBook object that represents the entire Excel file
WorkBook wb = WorkBook.LoadExcel("sample1.xlsx");

// Select the worksheet by name
// You can also use GetWorkSheet by index: wb.GetWorkSheet(0)
WorkSheet ws = wb.GetWorkSheet("Sheet1");

// Hide the second row (index 1, as it's zero-based)
// The Hidden property controls the visibility of the row
ws.GetRow(1).Hidden = true;

// You can also hide multiple rows in a loop
for (int i = 5; i <= 10; i++)
{
    ws.GetRow(i).Hidden = true;  // Hides rows 6-11
}

// Save changes to the Excel file
// This overwrites the original file
wb.SaveAs("sample1.xlsx");

// Alternatively, save with a different name
// wb.SaveAs("sample1_with_hidden_rows.xlsx");

Imports IronXL

' Load an existing Excel workbook
' This creates a WorkBook object that represents the entire Excel file
Dim wb As WorkBook = WorkBook.LoadExcel("sample1.xlsx")

' Select the worksheet by name
' You can also use GetWorkSheet by index: wb.GetWorkSheet(0)
Dim ws As WorkSheet = wb.GetWorkSheet("Sheet1")

' Hide the second row (index 1, as it's zero-based)
' The Hidden property controls the visibility of the row
ws.GetRow(1).Hidden = True

' You can also hide multiple rows in a loop
For i As Integer = 5 To 10
    ws.GetRow(i).Hidden = True  ' Hides rows 6-11
Next

' Save changes to the Excel file
' This overwrites the original file
wb.SaveAs("sample1.xlsx")

' Alternatively, save with a different name
' wb.SaveAs("sample1_with_hidden_rows.xlsx")

using IronXL;

// Load an existing Excel workbook
WorkBook wb = WorkBook.LoadExcel("sample1.xlsx");

// Select the worksheet
WorkSheet ws = wb.GetWorkSheet("Sheet1");

// Unhide the second row
ws.GetRow(1).Hidden = false;

// Unhide all rows in the worksheet
// This is useful when you want to ensure all data is visible
int maxRows = ws.RowCount;
for (int i = 0; i < maxRows; i++)
{
    var row = ws.GetRow(i);
    if (row != null)
    {
        row.Hidden = false;
    }
}

// Alternative: Unhide a specific range of rows
for (int i = 0; i <= 20; i++)
{
    ws.GetRow(i).Hidden = false;  // Unhides first 21 rows
}

// Save changes to the Excel file
wb.SaveAs("sample1.xlsx");

// You can also export the unhidden data to other formats
// wb.SaveAsCsv("unhidden_data.csv");
// wb.SaveAsJson("unhidden_data.json");

Imports IronXL

' Load an existing Excel workbook
Dim wb As WorkBook = WorkBook.LoadExcel("sample1.xlsx")

' Select the worksheet
Dim ws As WorkSheet = wb.GetWorkSheet("Sheet1")

' Unhide the second row
ws.GetRow(1).Hidden = False

' Unhide all rows in the worksheet
' This is useful when you want to ensure all data is visible
Dim maxRows As Integer = ws.RowCount
For i As Integer = 0 To maxRows - 1
    Dim row = ws.GetRow(i)
    If row IsNot Nothing Then
        row.Hidden = False
    End If
Next

' Alternative: Unhide a specific range of rows
For i As Integer = 0 To 20
    ws.GetRow(i).Hidden = False ' Unhides first 21 rows
Next

' Save changes to the Excel file
wb.SaveAs("sample1.xlsx")

' You can also export the unhidden data to other formats
' wb.SaveAsCsv("unhidden_data.csv")
' wb.SaveAsJson("unhidden_data.json")