ImageField.ConvertEmptyStringToNull Property

 
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Gets or sets a value indicating whether empty string ("") values are converted to null when the field values are returned from the data source.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public virtual bool ConvertEmptyStringToNull { get; set; }

Property Value

Type: System.Boolean

true if Empty values should be converted to null; otherwise, false. The default is true.

Sometimes the user may enter an empty string for a field value when updating or inserting records. Use the ConvertEmptyStringToNull property to specify whether an empty string value is automatically converted to null when the data field is updated in the data source

System_CAPS_noteNote

The ImageField class displays null as empty strings by default. To display a different value, set the NullDisplayText property.

.NET Framework
Available since 2.0
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