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DynamicControl.ConvertEmptyStringToNull Property

.NET Framework 4.5

Gets or sets a value that indicates whether empty string values ("") are automatically converted to null values when the data field is updated in the data source.

Namespace: System.Web.DynamicData
Assembly: System.Web.DynamicData (in System.Web.DynamicData.dll)

Syntax

C++

public bool ConvertEmptyStringToNull { get; set; }

ASP.NET

<asp:DynamicControl ConvertEmptyStringToNull="True|False" />

Property Value

Type: System.Boolean
true if empty string values are automatically converted to null values; otherwise, false. The default is false.

Implements

IFieldFormattingOptions.ConvertEmptyStringToNull

Remarks

The Parameter object of the data source control also has a property named Parameter.ConvertEmptyStringToNull. This property performs the same function. Make sure that both properties are set appropriately.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5 SP1

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

DynamicControl Class

System.Web.DynamicData Namespace

Other Resources

Handling Null Database Values in Data-Bound Controls

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