17.4.3 Understanding Data Loading Pages

Understand the features a generated Data Loading page combines to upload, preview, and load data.

A generated Data Loading page integrates the following features:

• File Upload page item to let the user upload a file
• Validation to ensure the user only submits expected file types
• Worksheet selector when spreadsheet has multiple sheets
• Data Preview to verify the data is parsing correctly
• Declarative data loading using the native Data Load page process.

• Specifying the File and Uploading It
  Understand how the generated Data Loading page uploads a selected file and stores it temporarily..
• Validating the Uploaded File Type
  Understand how the generated Data Loading page validates the uploaded file before loading it.
• Letting User Select Worksheet
  Understand how the generated Data Loading page lets users choose a worksheet when an Excel file has more than one.
• Previewing External Data Before Loading
  Understand how the generated Data Loading page previews uploaded data before loading it.
• Loading Data with Native Page Process
  Understand how the generated Data Loading page uses a native Data Loading process to load the uploaded file.