Worksheet.Columns Property (2007 System)

Article
09/25/2012

Gets a Range object that represents one or more columns on the worksheet.

Namespace: Microsoft.Office.Tools.Excel
Assembly: Microsoft.Office.Tools.Excel.v9.0 (in Microsoft.Office.Tools.Excel.v9.0.dll)

Syntax

'Declaration
<BrowsableAttribute(False)> _
Public ReadOnly Property Columns As Range

'Usage
Dim instance As Worksheet 
Dim value As Range 

value = instance.Columns

[BrowsableAttribute(false)]
public Range Columns { get; }

[BrowsableAttribute(false)]
public:
property Range^ Columns {
    Range^ get ();
}

public function get Columns () : Range

Property Value

Type: Range
A Range object that represents one or more columns on the worksheet.

Remarks

When used without parameters, this property returns a Range object that contains all the columns on the worksheet.

This property can be used with the following optional parameters to get specific columns on the worksheet. If you use this property with parameters, the return value is an object that must be cast to a Range.

Parameter	Description
RowIndex	The index of one or more columns to get. To get a single column, pass one of the following objects to this parameter: An integer that specifies the index of the column you want to get. The column indexes begin at 1. A string that consists of the letter of the column you want to get. To get multiple contiguous columns, pass a string with the format "first column letter:last column letter". For example, to get columns A through E, pass "A:E". Note The name of this parameter is misleading; this parameter specifies the indexes of the columns you want to get, not the rows.
ColumnIndex	Do not use this parameter. This property will throw a COMException if you try to pass a value to this parameter.

RowIndex

The index of one or more columns to get.

To get a single column, pass one of the following objects to this parameter:

An integer that specifies the index of the column you want to get. The column indexes begin at 1.
A string that consists of the letter of the column you want to get.

To get multiple contiguous columns, pass a string with the format "first column letter:last column letter". For example, to get columns A through E, pass "A:E".

Note

The name of this parameter is misleading; this parameter specifies the indexes of the columns you want to get, not the rows.

ColumnIndex

Do not use this parameter. This property will throw a COMException if you try to pass a value to this parameter.

Examples

The following code example uses the Columns property to set the color, name, size, and boldness of the font of all the cells in the first column on the worksheet.

This example is for a document-level customization. To run this code, copy it into one of the worksheet classes in your project.

Private Sub SetFirstColumnFont()
    Dim fillColumn As Excel.Range = TryCast(Me.Columns("A"), Excel.Range)

    With fillColumn.Font
        ' Set the font color to blue (RGB value 00 00 FF), and set other font properties.
        .Color = &HFF0000
        .Name = "Arial"
        .Size = 14
        .Bold = False 
    End With 

    ' Test the changes by writing a value to all the column cells.
    fillColumn.Value2 = "This is a test" 
End Sub

private void SetFirstColumnFont()
{
    Excel.Range fillColumn = (Excel.Range)this.Columns["A", missing];
    Excel.Font columnsFont = fillColumn.Font;

    // Set the font color to blue (RGB value 00 00 FF), and set other font properties.
    columnsFont.Color = 0xFF0000;
    columnsFont.Name = "Arial";
    columnsFont.Size = 14;
    columnsFont.Bold = false;

    // Test the changes by writing a value to all the column cells.
    fillColumn.Value2 = "This is a test";
}

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

Change History

Date	History	Reason
February 2009	Added information and code example about accessing specific columns.	Customer feedback.

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