public class XlCondFmtRuleDataBar :
    XlCondFmtRuleWithGuid

Public Class XlCondFmtRuleDataBar
    Inherits XlCondFmtRuleWithGuid

// Create an instance of the XlConditionalFormatting class. 
XlConditionalFormatting formatting = new XlConditionalFormatting();
// Specify the cell range to which the conditional formatting rule should be applied (A1:A11).
formatting.Ranges.Add(XlCellRange.FromLTRB(0, 0, 0, 10));
// Create the rule to compare values in the cell range using data bars.
XlCondFmtRuleDataBar rule = new XlCondFmtRuleDataBar();
// Specify the bar color.
rule.FillColor = XlColor.FromTheme(XlThemeColor.Accent1, 0.2);
// Specify the solid fill type.
rule.GradientFill = false;
formatting.Rules.Add(rule);
// Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting);

// Create an instance of the XlConditionalFormatting class. 
formatting = new XlConditionalFormatting();
// Specify the cell range to which the conditional formatting rule should be applied (B1:B11).
formatting.Ranges.Add(XlCellRange.FromLTRB(1, 0, 1, 10));
// Create the rule to compare values in the cell range using data bars.
rule = new XlCondFmtRuleDataBar();
// Set the positive bar color to green.
rule.FillColor = Color.Green;
// Set the border color of positive bars to green.
rule.BorderColor = Color.Green;
// Set the axis color to brown.
rule.AxisColor = Color.Brown;
// Use the gradient fill type
rule.GradientFill = true;
formatting.Rules.Add(rule);
// Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting);

// Create an instance of the XlConditionalFormatting class. 
formatting = new XlConditionalFormatting();
// Specify the cell range to which the conditional formatting rule should be applied (C1:C11).
formatting.Ranges.Add(XlCellRange.FromLTRB(2, 0, 2, 10));
// Create the rule to compare values in the cell range using data bars.
rule = new XlCondFmtRuleDataBar();
// Specify the bar color.
rule.FillColor = XlColor.FromTheme(XlThemeColor.Accent4, 0.2);
// Set the minimum length of the data bar.
rule.MinLength = 10;
// Set the maximum length of the data bar.
rule.MaxLength = 90;
// Set the value corresponding to the shortest bar.
rule.MinValue.ObjectType = XlCondFmtValueObjectType.Number;
rule.MinValue.Value = 3;
// Set the direction of data bars.
rule.Direction = XlDataBarDirection.RightToLeft;
// Hide values of cells to which the rule is applied.
rule.ShowValues = false;
formatting.Rules.Add(rule);
// Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting);

' Create an instance of the XlConditionalFormatting class. 
Dim formatting As New XlConditionalFormatting()
' Specify the cell range to which the conditional formatting rule should be applied (A1:A11).
formatting.Ranges.Add(XlCellRange.FromLTRB(0, 0, 0, 10))
' Create the rule to compare values in the cell range using data bars.
Dim rule As New XlCondFmtRuleDataBar()
' Specify the bar color.
rule.FillColor = XlColor.FromTheme(XlThemeColor.Accent1, 0.2)
' Specify the solid fill type.
rule.GradientFill = False
formatting.Rules.Add(rule)
' Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting)

' Create an instance of the XlConditionalFormatting class. 
formatting = New XlConditionalFormatting()
' Specify the cell range to which the conditional formatting rule should be applied (B1:B11).
formatting.Ranges.Add(XlCellRange.FromLTRB(1, 0, 1, 10))
' Create the rule to compare values in the cell range using data bars.
rule = New XlCondFmtRuleDataBar()
' Set the positive bar color to green.
rule.FillColor = Color.Green
' Set the border color of positive bars to green.
rule.BorderColor = Color.Green
' Set the axis color to brown.
rule.AxisColor = Color.Brown
' Use the gradient fill type
rule.GradientFill = True
formatting.Rules.Add(rule)
' Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting)

' Create an instance of the XlConditionalFormatting class. 
formatting = New XlConditionalFormatting()
' Specify the cell range to which the conditional formatting rule should be applied (C1:C11).
formatting.Ranges.Add(XlCellRange.FromLTRB(2, 0, 2, 10))
' Create the rule to compare values in the cell range using data bars.
rule = New XlCondFmtRuleDataBar()
' Specify the bar color.
rule.FillColor = XlColor.FromTheme(XlThemeColor.Accent4, 0.2)
' Set the minimum length of the data bar.
rule.MinLength = 10
' Set the maximum length of the data bar.
rule.MaxLength = 90
' Set the value corresponding to the shortest bar.
rule.MinValue.ObjectType = XlCondFmtValueObjectType.Number
rule.MinValue.Value = 3
' Set the direction of data bars.
rule.Direction = XlDataBarDirection.RightToLeft
' Hide values of cells to which the rule is applied.
rule.ShowValues = False
formatting.Rules.Add(rule)
' Add the specified format options to the worksheet collection of conditional formats.
sheet.ConditionalFormattings.Add(formatting)