grExist (Function)

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grExist (Function)

In french: grExiste

Checks the existence of a chart in memory.

The chart used can be:

a chart created by programming (grCreate).
a Chart control in the window editor, page editor or report editor.

Versions 15 and later

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The charts for more details.

New in version 15

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The charts for more details.

This function is now available for WEBDEV sites in Linux.

Caution: A specific configuration is required to use this function in Linux. See The charts for more details.

Versions 16 and later

This function is now available for WINDEV applications in Linux.

New in version 16

This function is now available for WINDEV applications in Linux.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

// Checks the existence of "MyChart"
ResExist = grExist("MyChart")

// Checks the existence of CHART_MyChart
ResExist = grExist(CHART_MyChart)

Syntax

<Result> = grExist(<Chart name>)

<Result>: Boolean

True if the chart exists,
False otherwise.

<Chart name>: Character string (with or without quotes)

Name of chart to use. This name corresponds to:
the chart name defined by programming with grCreate.
the name of Chart control found in the window editor, page editor or report editor.

Related Examples:

Unit examples (WINDEV): The Chart functions

[ + ] Using the main chart designer features of WINDEV:
- Create a Pie, Column or Line chart
- Define the display area of a chart
- Define the chart options (legend, percentage, ...)
- Draw a line on a chart

Component : wd250grf.dll