# GC.Spread.Sheets.GanttSheet.GanttGridlines

## Content

# Class: GanttGridlines

[Sheets](../modules/GC.Spread.Sheets).[GanttSheet](../modules/GC.Spread.Sheets.GanttSheet).GanttGridlines

## Table of contents

### Constructors

- [constructor](GC.Spread.Sheets.GanttSheet.GanttGridlines#constructor)

### Properties

- [bottomTierColumn](GC.Spread.Sheets.GanttSheet.GanttGridlines#bottomtiercolumn)
- [currentDate](GC.Spread.Sheets.GanttSheet.GanttGridlines#currentdate)
- [ganttRows](GC.Spread.Sheets.GanttSheet.GanttGridlines#ganttrows)
- [middleTierColumn](GC.Spread.Sheets.GanttSheet.GanttGridlines#middletiercolumn)
- [projectFinish](GC.Spread.Sheets.GanttSheet.GanttGridlines#projectfinish)
- [projectStart](GC.Spread.Sheets.GanttSheet.GanttGridlines#projectstart)
- [topTierColumn](GC.Spread.Sheets.GanttSheet.GanttGridlines#toptiercolumn)

## Constructors

### <a id="constructor" name="constructor"></a> constructor

• **new GanttGridlines**()

Represents the gridlines for GanttSheet and GanttChart.

## Properties

### <a id="bottomtiercolumn" name="bottomtiercolumn"></a> bottomTierColumn

• **bottomTierColumn**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline which aligns to the ticks on timescale bottom tier on GanttChart.

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### <a id="currentdate" name="currentdate"></a> currentDate

• **currentDate**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline to indicate current date on GanttChart.

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### <a id="ganttrows" name="ganttrows"></a> ganttRows

• **ganttRows**: [`GanttGridlineInterval`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridlineinterval)

Gets or sets the gridline for rows of GanttChart.

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### <a id="middletiercolumn" name="middletiercolumn"></a> middleTierColumn

• **middleTierColumn**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline which aligns to the ticks on timescale middle tier on GanttChart.

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### <a id="projectfinish" name="projectfinish"></a> projectFinish

• **projectFinish**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline to indicate project finish date on GanttChart.

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### <a id="projectstart" name="projectstart"></a> projectStart

• **projectStart**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline to indicate project start date on GanttChart.

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### <a id="toptiercolumn" name="toptiercolumn"></a> topTierColumn

• **topTierColumn**: [`GanttGridline`](../modules/GC.Spread.Sheets.GanttSheet#ganttgridline)

Gets or sets the gridline which aligns to the ticks on timescale top tier on GanttChart.