DbCommandBuilder.GetUpdateCommand Method (Boolean)

public DbCommand GetUpdateCommand (
	bool useColumnsForParameterNames
)

public DbCommand GetUpdateCommand (
	boolean useColumnsForParameterNames
)

public function GetUpdateCommand (
	useColumnsForParameterNames : boolean
) : DbCommand

Parameters

useColumnsForParameterNames

If true, generate parameter names matching column names, if possible. If false, generate @p1, @p2, and so on.

Return Value

An application can use the GetUpdateCommand method for informational or troubleshooting purposes because it returns the DbCommand object to be executed.

You can also use GetUpdateCommand as the basis of a modified command. For example, you might call GetUpdateCommand and modify command text, and then explicitly set that on the DbDataAdapter.

After the SQL statement is first generated, the application must explicitly call RefreshSchema if it changes the statement in any way. Otherwise, the GetUpdateCommand will still be using information from the previous statement, which might not be correct. The SQL statements are first generated either when the application calls Update or GetUpdateCommand.

The default behavior, when generating parameter names, is to use @p1, @p2, and so on for the various parameters. Passing true for the useColumnsForParameterNames parameter allows you to force the DbCommandBuilder to generate parameters based on the column names instead. Generation of the parameters based on column names succeeds only if the following conditions are met:

• The ParameterNameMaxLength has been specified and its length is equal to or greater than the generated parameter name.

• The generated parameter name meets the criteria specified in the ParameterNamePattern regular expression.

• A ParameterMarkerFormat is specified.

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

.NET Compact Framework