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ThrowIfPropertyNotSet 方法 (String, String, Boolean)

Throws an exception if the specified connection property is null or, optionally, empty.

命名空间：  Microsoft.SqlServer.Management.Common
程序集：  Microsoft.SqlServer.ConnectionInfo（在 Microsoft.SqlServer.ConnectionInfo.dll 中）

语法

声明
Protected Function ThrowIfPropertyNotSet ( _
    propertyName As String, _
    str As String, _
    checkEmpty As Boolean _
) As String
用法
Dim propertyName As String
Dim str As String
Dim checkEmpty As Boolean
Dim returnValue As String

returnValue = Me.ThrowIfPropertyNotSet(propertyName, _
    str, checkEmpty)

protected string ThrowIfPropertyNotSet(
    string propertyName,
    string str,
    bool checkEmpty
)

protected:
String^ ThrowIfPropertyNotSet(
    String^ propertyName, 
    String^ str, 
    bool checkEmpty
)

member ThrowIfPropertyNotSet : 
        propertyName:string * 
        str:string * 
        checkEmpty:bool -> string 

protected function ThrowIfPropertyNotSet(
    propertyName : String, 
    str : String, 
    checkEmpty : boolean
) : String

参数

  • propertyName
    类型：System. . :: . .String
    A string that specifies the name of the connection property, such as "Login".
  • checkEmpty
    类型：System. . :: . .Boolean
    True if you want to check the property value for an empty string or null value; false if you want to check only for a null value.

返回值

类型：System. . :: . .String
If the property is not set, this method throws a PropertyNotSetException. Otherwise, this method returns the str parameter value.

注释

If you want to throw the exception if the property value is an empty string, set the checkEmpty parameter to true.