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Excel Panes can be frozen in order to keep certain rows or columns visible when scrolling through the worksheet. This is particularly helpful when you have a huge amount of data that you need to deal with. In this article, you will learn how to freeze rows or/and columns in C# and VB.NET using Sprie.XLS for .NET.
Spire.XLS provides the Worksheet.FreezePanes(int rowIndex, int columnIndex) method to freeze all rows and columns above and left of the selected cell which is determined by the rowIndex and the columnIndex.
The following sections will demonstrate how to:
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Freeze the Top Row
To freeze the top row, the selected cell should be the cell (2, 1) – “A2”. The following are the steps to freeze the top row using Spire.XLS for .NET.
- Create a Workbook object.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get a specific worksheet through Workbook.Worksheets[sheetIndex] property.
- Freeze the top row by passing (2, 1) to the Worksheet.FreezePanes(int rowIndex, int columnIndex) method as the parameter.
- Save the workbook to another Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace FreezeTopRow
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Load an Excel document
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Freeze the top row
sheet.FreezePanes(2, 1);
//Save to another file
workbook.SaveToFile("FreezeTopRow.xlsx", ExcelVersion.Version2016);
}
}
}
Freeze the First Column
To freeze the first column, the selected cell should be the cell (1, 2) – “B1”. The following are the steps to freeze the first column using Spire.XLS for .NET.
- Create a Workbook object.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get a specific worksheet through Workbook.Worksheets[sheetIndex] property.
- Freeze the top row by passing (1, 2) to the Worksheet.FreezePanes(int rowIndex, int columnIndex) method as the parameter.
- Save the workbook to another Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace FreezeFirstColumn
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Load an Excel document
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Freeze the first column
sheet.FreezePanes(1, 2);
//Save to another file
workbook.SaveToFile("FreezeFirstColumn.xlsx", ExcelVersion.Version2016);
}
}
}
Freeze the First Row and the First Column
To freeze the first row and the first column, the selected cell should be the cell (2, 2) – “B2”. The following are the detailed steps.
- Create a Workbook object.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get a specific worksheet through Workbook.Worksheets[sheetIndex] property.
- Freeze the first row and the first column by passing (2, 2) to the Worksheet.FreezePanes(int rowIndex, int columnIndex) method as the parameter.
- Save the workbook to another Excel file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace FreezeFirstRowAndFirstColumn
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Load an Excel document
workbook.LoadFromFile(@"C:\Users\Administrator\Desktop\sample.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Freeze the first row and the first column
sheet.FreezePanes(2, 2);
//Save to another file
workbook.SaveToFile("FreezeFirstRowAndFirstColumn.xlsx", ExcelVersion.Version2016);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
The Find function in Excel is one of the most commonly used functions for quickly locating specified data, and users can also highlight the data to make it more obvious. In this article, you will learn how to programmatically find and highlight cells with a specific value using Spire.XLS for .NET.
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Find and Highlight Data in Excel
The detailed steps are as follows.
- Create a Workbook instance.
- Load a sample Excel file using Workbook.LoadFromFile() method.
- Get a specified worksheet using Workbook.Worksheets[sheetIndex] property.
- Find all cells with matching text using Worksheet.FindAllString(string stringValue, bool formula, bool formulaValue) method.
- Set color to highlight the cells using CellRange.Style.Color property.
- Save the result file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
using System.Drawing;
namespace FindHighlight
{
class Program
{
static void Main(string[] args)
{
//Create a Workbook instance
Workbook workbook = new Workbook();
//Load a sample Excel file
workbook.LoadFromFile("Test.xlsx");
//Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Find all cells with the text "Regulator System"
foreach (CellRange range in sheet.FindAllString("Regulator System", true, true))
{
//Set color to highlight the cells
range.Style.Color = Color.Yellow;
}
//Save the result file
workbook.SaveToFile("FindHighlight.xlsx", ExcelVersion.Version2016);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
Excel comments are additional notes or commentary that can be added to specified cells to provide more in-depth explanations or to offer tips to other users. Once a comment’s been added, Excel provides users with the flexibility to format, edit, delete and show/hide the comment in the worksheet. In this article, you will learn how to programmatically edit or delete existing comments in Excel using Spire.XLS for .NET.
Install Spire.XLS for .NET
To begin with, you need to add the DLL files included in the Spire.XLS for.NET package as references in your .NET project. The DLLs files can be either downloaded from this link or installed via NuGet.
PM> Install-Package Spire.XLS
Edit Comments in Excel
After adding comments to your Excel workbook, you may sometimes need to make changes to the added comments. The below table lists some of the core classes and properties used to get the existing comments and then set new text as well as formatting for the comments.
| Name | Description |
| CellRange.Comment Property | Returns a Comment object that represents the comment associated with the cell in the upper-left corner of the range. |
| ExcelCommentObject Class | Represents a comment. |
| ExcelCommentObject.Text Property | Gets or sets the comment text. |
| ExcelCommentObject.Height Property | Gets or sets height of a comment. |
| ExcelCommentObject.Width Property | Gets or sets width of a comment. |
| ExcelCommentObject.AutoSize Property | Indicates whether the size of the specified object is changed automatically to fit text within its boundaries. |
The following are steps to edit comments in Excel:
- Create a Workbook instance.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get the first worksheet of the Excel file using Workbook.Worksheets[] property.
- Get a comment in a specific cell range using Worksheet.Range.Comment property.
- Set new text and height/width or auto size for the existing comment using the properties of ExcelCommentObject class.
- Save the document to another file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace EditExcelComment
{
class Program
{
static void Main(string[] args)
{
// Create a Workbook instance
Workbook workbook = new Workbook();
// Load an Excel file
workbook.LoadFromFile("Comments.xlsx");
// Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Get comments in specific cells and set new comments
sheet.Range["A8"].Comment.Text = "Frank has left the company.";
sheet.Range["F6"].Comment.Text = "Best sales.";
// Set the height and width of the new comments
sheet.Range["A8"].Comment.Height = 50;
sheet.Range["A8"].Comment.Width = 100;
sheet.Range["F6"].Comment.AutoSize = true;
// Save to file.
workbook.SaveToFile("ModifyComment.xlsx", ExcelVersion.Version2013);
}
}
}
Delete Comments in Excel
The ExcelCommentObject.Remove() method offered by Spire.XLS for .NET allows you to remove a specified comment easily. The detailed steps are as follows:
- Create a Workbook instance.
- Load an Excel file using Workbook.LoadFromFile() method.
- Get the first worksheet of the Excel file using Workbook.Worksheets[] property.
- Get a comment in a specific cell range using Worksheet.Range.Comment property and then delete the comment using ExcelCommentObject.Remove() method.
- Save the document to another file using Workbook.SaveToFile() method.
- C#
- VB.NET
using Spire.Xls;
namespace EditExcelComment
{
class Program
{
static void Main(string[] args)
{
// Create a Workbook instance
Workbook workbook = new Workbook();
// Load an Excel file
workbook.LoadFromFile("Comments.xlsx");
// Get the first worksheet
Worksheet sheet = workbook.Worksheets[0];
//Get the comment in a specific cell and remove it
sheet.Range["F6"].Comment.Remove();
// Save to file.
workbook.SaveToFile("DeleteComment.xlsx", ExcelVersion.Version2013);
}
}
}
Apply for a Temporary License
If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.
