Comment geler une ligne dans Excel (Guide pour débutants)

2.1 Freeze Rows

In your worksheet, you might want to permanently display a specific row or column, particularly the header cells. You can scroll over your material while still viewing the frozen cells by freezing rows or columns in place.

Step 1: Select the row you want to freeze or, if you want to freeze the top row, select row 1. In this case, choose row 1 to freeze it to see the header at all times.

The Excel data demonstrated for freezing rows

Step 2: Choose Freeze Panes from the drop-down menu by clicking the Freeze Panes command on the View tab.

Navigate to the Freeze Panes function in Microsoft Excel

Step 3: The gray line indicates that the rows are frozen in place. The frozen rows can still be viewed at the top of the worksheet as you scroll down. In this example, scroll down to row 17, but row 1 still can be seen on the screen because it has been frozen as the top row.

Gray indication for frozen rows

2.2 Freeze Columns

Step 1: Choose the column to the right of the column or columns you wish to freeze. In this case, choose column B to freeze column A.

The Excel data demonstrated for freezing columns

Step 2: Choose Freeze Panes from the drop-down menu by clicking the Freeze Panes command on the View tab.

Navigate to the Freeze Panes function in Microsoft Excel

Step 3: Then, select the column to freeze, which will be shown in a gray line. The gray line indicates where the column will be frozen in place. When navigating through the worksheet, the frozen column remains visible on the left-hand side. In this example, scroll down to column G and can still see the frozen column on the left.

Gray indication for frozen columns

2.3 Unfreezing Panes

If you want to select a different view option, you may need to reset the spreadsheet by unfreezing the panes. To do this, click the Freeze Panes command and then select Unfreeze Panes from the drop-down menu to unfreeze rows or columns.

Navigate to the Unfreeze Panes function in Microsoft Excel

3.1 IronXL Features

IronXL is a .NET library that enables the reading and editing of Microsoft Excel documents in C#. It is a standalone .NET software library that can read multiple spreadsheet formats. The installation of Microsoft Excel or Interop is not required.

With IronXL's user-friendly C# API, it is easy to read, modify, and create Excel spreadsheet files in the .NET environment. The library provides comprehensive support for .NET Core, .NET Framework, Xamarin, Mobile, Linux, macOS, and Azure, and is among the best Excel spreadsheet libraries for these platforms.

3.2 IronXL Features

• Data from XLS, XLSX, CSV, and TSV can be edited, read, and loaded.
• It supports storing and exporting data to CSV, TSV, JSON, XLS, and XLSX.
• Ranges can be easily utilized with the WorkSheet["A1:B10"] syntax. Ranges can be mixed logically.
• Columns, rows, and ranges can be sorted.
• Examples of styling include cell visual styles, font, size, border, alignment, lock, freeze cells, hide/unhide rows, and number formats can be applied.

3.3 Freeze Panes using IronXL

Freezing rows and columns in Excel allows them to remain fixed in the specified location on the screen while scrolling, making it easier to keep track of columns and refer to them. Below is a sample code for freezing rows:

using IronXL;

// Load the existing Excel file
WorkBook wb = WorkBook.LoadExcel("sample1.xlsx");

// Get a specific worksheet from the workbook
WorkSheet ws = wb.GetWorkSheet("Sheet1");

// Create a freeze pane at the top of the worksheet
// Parameters are column index and row index; here, it's freezing the top row
ws.CreateFreezePane(0, 1);

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

using IronXL;

// Load the existing Excel file
WorkBook wb = WorkBook.LoadExcel("sample1.xlsx");

// Get a specific worksheet from the workbook
WorkSheet ws = wb.GetWorkSheet("Sheet1");

// Create a freeze pane at the top of the worksheet
// Parameters are column index and row index; here, it's freezing the top row
ws.CreateFreezePane(0, 1);

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

Imports IronXL

' Load the existing Excel file
Private wb As WorkBook = WorkBook.LoadExcel("sample1.xlsx")

' Get a specific worksheet from the workbook
Private ws As WorkSheet = wb.GetWorkSheet("Sheet1")

' Create a freeze pane at the top of the worksheet
' Parameters are column index and row index; here, it's freezing the top row
ws.CreateFreezePane(0, 1)

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

The above code is a sample that freezes the top row of the Excel sheet.

1. Load the Existing Excel Sheet:
   Use the method WorkBook.LoadExcel to load the Excel file into the wb object, which can perform various types of Excel processes.

2. Select the Worksheet:
   Use GetWorkSheet to select the required worksheet by name (in this case, "Sheet1").

3. Create Freeze Panes:
   The method CreateFreezePane is used with two parameters - one for the column position and the other for the row position. It freezes the specified columns and rows in place.

4. Save the Workbook:
   Use the SaveAs method to save changes to a file.

Changing the values in CreateFreezePane can modify which rows and columns are frozen.

The Excel file with freeze panes function from IronXL

3.4 Unfreezing Panes using IronXL

The RemovePane function can be used to unfreeze rows and columns in the Excel sheet.