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DEMOS DOC DESIGNER API
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(Showing Draft Content)

Customize Save File Dialog

SpreadJS allows users to customize the behavior of the Save File dialog when importing and saving files in the Spread Designer component. This feature enhances flexibility and efficiency by enabling users to choose the file format and specify file names according to their preferences.

Default Behavior

By default, when there is content in the Spread file, importing a local file prompts whether to save the current content or not. If you choose to save, the format of the saved file matches the format of the imported file.

Example:

  1. Import an Excel file with content.

  2. Then import a CSV file from your local system.

    A warning message appears to save your current file changes.

  3. Click Yes.

    The Save File dialog shows .xlsx format to save the current file.

Note: If no file has been imported before, it saves the content in ssjson(default) format.

Customize File Saving Formats

You can set your preferred file saving format using the saveFileType parameter in the setData method.

Currently, only the following exported file types are supported in GC.Spread.Sheets.Designer.FileType enumeration.

Format

Description

JSON

Specifies the file saving format as json

Excel

Specifies the file saving format as .xlsx

CSV

Specifies the file saving format as .csv

SJS

Specifies the file saving format as .sjs

Set the file saving format using the saveFileType parameter in the setData method as shown below.

designer.setData("saveFileType", GC.Spread.Sheets.Designer.FileType.Excel);

The below output will be generated which allows to save the imported .csv file in .xlsx format only.


CustomizedSaveFiledialog


However, to revert to the default import/export save rules, you can set saveFileType to undefined as shown below.

designer.setData("saveFileType", undefined);

Customize File Names

By default, the Save File dialog doesn't display any file name when exporting a file. You can set your own file name using the saveFileName parameter in setData method.

designer.setData("saveFileName", "New File");

The below output will be generated.


save file dialog

Note:

File names must follow system rules, such as:

  • File names should always be strings.

  • Maximum character length should be 255 for Windows.

  • Avoid use of symbolic characters, such as "<>".

  • Avoid system reserved names.