Interface IStyles

A collection of all the Style objects in the specified or active workbook. Each Style object represents a style description for a range. The Style object contains all style attributes (font, number format, alignment, and so on) as properties. There are several built-in styles including Normal, Currency, and Percent which are listed in the Style name box in the Style dialog box. (Format menu).

Namespace: Syncfusion.XlsIO

Assembly: Syncfusion.XlsIO.NET.dll

Syntax

public interface IStyles : IEnumerable

Properties

Application

Used without an object qualifier, this property returns an Application object that represents the Microsoft Excel application.

Declaration

IApplication Application { get; }

Property Value

Type
IApplication

Examples

The following code illustrates how IApplication object in the IStyles collection can be accessed .

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Access application object
            Console.WriteLine(style.Application.DefaultVersion);

            //Wait for user input
            Console.ReadKey();
        }
//Output will be
//Excel2013

Count

Returns the number of IStyle objects in the IStyles collection. Read-only, Long.

Declaration

int Count { get; }

Property Value

Type
System.Int32

Examples

The following code illustrates how to access the number of IStyle objects in the IStyles collection.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Check styles count
            Console.WriteLine(workbook.Styles.Count);

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//7

Item[Int32]

Returns a single IStyle object from the IStyles collection.

Declaration

IStyle this[int Index] { get; }

Parameters

Type	Name	Description
System.Int32	Index

Property Value

Type
IStyle

Examples

The following code illustrates how to access IStyle object in the IStyles collection using it's index.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Check style name
            Console.WriteLine(workbook.Styles[6].Name);
            Console.WriteLine(workbook.Styles[0].Name);

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//CustomStyle
//Normal

Item[String]

Returns a single IStyle object from the IStyles collection.

Declaration

IStyle this[string name] { get; }

Parameters

Type	Name	Description
System.String	name

Property Value

Type
IStyle

Examples

The following code illustrates how to access IStyle object in the IStyles collection using it's Name.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Check style built in
            Console.WriteLine(workbook.Styles["CustomStyle"].BuiltIn);
            Console.WriteLine(workbook.Styles["Normal"].BuiltIn);

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//False
//True

Parent

Returns the parent object for the specified object.

Declaration

object Parent { get; }

Property Value

Type
System.Object

Examples

The following code illustrates how to access the parent of a IStyle object.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Set color
            style.ColorIndex = ExcelKnownColors.Red;

            //Set style
            worksheet["C2"].CellStyle = style;

            //Check styles count
            Console.WriteLine(style.Parent);

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//Syncfusion.XlsIO.Implementation.WorkbookImpl

Methods

Add(String)

Creates a new IStyle and adds it to the list of IStyles that are available for the current workbook. Returns a IStyle object.

Declaration

IStyle Add(string Name)

Parameters

Type	Name	Description
System.String	Name	Name of the created IStyle.

Returns

Type	Description
IStyle	Newly created IStyle.

Remarks

To know more about IStyles refer Create a Style.

Examples

The following code illustrates how to create and add a IStyle to the IStyles collection.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Set color
            style.ColorIndex = ExcelKnownColors.Red;

            //Set style
            worksheet["C2"].CellStyle = style;

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
        }

Add(String, Object)

Creates a new IStyle and adds it to the list of IStyles that are available for the current workbook. Returns a IStyle object.

Declaration

IStyle Add(string Name, object BasedOn)

Parameters

Type	Name	Description
System.String	Name	Name of the newly created IStyle.
System.Object	BasedOn	Prototype for the IStyle.

Returns

Type	Description
IStyle	Newly created IStyle.

Examples

The following code illustrates how to add a IStyle created based on an existing IStyle object.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Value = "100";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle", workbook.Styles[1]);

            //Set color
            style.ColorIndex = ExcelKnownColors.Red;

            //Set style
            worksheet["C2"].CellStyle = style;

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
        }

Contains(String)

Method return true if IStyles collection contains IStyle with specified by user name.

Declaration

bool Contains(string name)

Parameters

Type	Name	Description
System.String	name	Name to check.

Returns

Type	Description
System.Boolean	True - if IStyle exists, otherwise False.

Examples

The following code illustrates how to check whether a IStyle is present in IStyles collection or not.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Set text
            worksheet["C2"].Text = "Sample";

            //Add style
            IStyle style = workbook.Styles.Add("CustomStyle");

            //Check styles count
            Console.WriteLine(workbook.Styles.Contains("CustomStyle"));

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//True

Merge(Object)

Merges the styles from another workbook into the Styles collection. Keep only unique style in collection.

Declaration

IStyles Merge(object Workbook)

Parameters

Type	Name	Description
System.Object	Workbook	Workbook from which all styles will be added.

Returns

Type	Description
IStyles	Merged collection.

Examples

The following code illustrates how styles can be imported from a source workbook to destination workbook.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Create Styles
            workbook.Styles.Add("CustomStyle1");
            workbook.Styles.Add("CustomStyle2");

            //Modify styles
            workbook.Styles["CustomStyle1"].ColorIndex = ExcelKnownColors.Red;
            workbook.Styles["CustomStyle2"].ColorIndex = ExcelKnownColors.Blue;

            //Create new worksheet
            IWorkbook book = application.Workbooks.Create(1);
            IWorksheet sheet = book.Worksheets[0];

            //Check count
            Console.WriteLine("Before Merge\nDestination "+book.Styles.Count);
            Console.WriteLine("Source "+workbook.Styles.Count);

            //Merge styles
            book.Styles.Merge(workbook);

            //Check count
            Console.WriteLine("After Merge\nDestination "+book.Styles.Count);
            Console.WriteLine("Source "+workbook.Styles.Count);

            //Close
            workbook.Close();
            book.Close();
            Console.ReadKey();
        }
//Output will be
//Before Merge
//Destination 6
//Source 8
//After Merge
//Destination 8
//Source 8

Merge(Object, Boolean)

Merges the styles from another workbook into the Styles collection.

Declaration

IStyles Merge(object Workbook, bool overwrite)

Parameters

Type	Name	Description
System.Object	Workbook	Workbook from which all styles will be added.
System.Boolean	overwrite	True - overwrite styles with the same names, otherwise.

Returns

Type	Description
IStyles	Merged collection.

Examples

The following code illustrates how styles can be imported from a source workbook to destination workbook.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Create Styles
            workbook.Styles.Add("CustomStyle1");
            workbook.Styles.Add("CustomStyle2");

            //Modify styles
            workbook.Styles["CustomStyle1"].ColorIndex = ExcelKnownColors.Red;
            workbook.Styles["CustomStyle2"].ColorIndex = ExcelKnownColors.Blue;

            //Create new worksheet
            IWorkbook book = application.Workbooks.Create(1);
            IWorksheet sheet = book.Worksheets[0];

            //Check count
            Console.WriteLine("Before Merge\nDestination "+book.Styles.Count);
            Console.WriteLine("Source "+workbook.Styles.Count);

            //Merge styles
            book.Styles.Merge(workbook, true);

            //Check count
            Console.WriteLine("After Merge\nDestination "+book.Styles.Count);
            Console.WriteLine("Source "+workbook.Styles.Count);

            //Close
            workbook.Close();
            book.Close();
            Console.ReadKey();
        }
//Output will be
//Before Merge
//Destination 6
//Source 8
//After Merge
//Destination 8
//Source 8

Remove(String)

Removes IStyle from the IStyles collection.

Declaration

void Remove(string styleName)

Parameters

Type	Name	Description
System.String	styleName	IStyle name to remove.

Examples

The following code illustrates how to remove a IStyle from the IStyles collection.

        using (ExcelEngine excelEngine = new ExcelEngine())
        {
            //Create worksheet
            IApplication application = excelEngine.Excel;
            application.DefaultVersion = ExcelVersion.Excel2013;
            IWorkbook workbook = application.Workbooks.Create(1);
            IWorkbook workbook2 = application.Workbooks.Create(1);
            IWorksheet worksheet = workbook.Worksheets[0];

            //Create style
            IStyle style1 = workbook.Styles.Add("CustomStyle1");
            IStyle style2 = workbook.Styles.Add("CustomStyle2");

            //Check styles count
            Console.WriteLine(workbook.Styles.Count);

            //Removing style
            workbook.Styles.Remove("CustomStyle1");

            //Check styles count
            Console.WriteLine(workbook.Styles.Count);

            //Save and dispose
            workbook.SaveAs("CellFormats.xlsx");
            workbook.Close();
            Console.ReadKey();
        }
//Output will be
//8
//7