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 End-User Documentation
View this topic on docs.devexpress.com (Learn more)

SnapSingleListItemEntity.EmptyFieldDataAlias Property

Specifies the text to show in a document instead of a blank space if a Snap field receives an empty data source record.

Namespace:DevExpress.Snap.Core.API
Assembly:DevExpress.Snap.v19.2.Core.dll

Expanded Syntax

Property value

Type: String
A System.String value, specifying the empty field data alias.

Expanded Remarks

Use the EnableEmptyFieldDataAlias property to display the alias specified by the EmptyFieldDataAlias option.

Tip

Use the SnapImage.ShowPlaceholder property to show a placeholder instead of the blank space. This property has effect only if the EnableEmptyFieldDataAlias property is set to false.

The table below lists scenarios when the EmptyFieldDataAlias value is displayed for different fields.

Field Name

Empty Data Source Scenario

SNTEXT

The data source does not contain the required entry

The required data entry is null or DBNull.Value

The required data entry returns an empty string.

SNHYPERLINK

The data source does not contain the data entry bound to the DataFieldName property.

The data entry bound to the DataFieldName property returns an empty string.

Expanded See Also

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