DbConnectionStringBuilder.Count 属性
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
获取属性 ConnectionString 中包含的键的当前数目。
public:
virtual property int Count { int get(); };public virtual int Count { get; }[System.ComponentModel.Browsable(false)]
public virtual int Count { get; }member this.Count : int[<System.ComponentModel.Browsable(false)>]
member this.Count : intPublic Overridable ReadOnly Property Count As Integer属性值
由 DbConnectionStringBuilder 实例维护的连接字符串中包含的键的数目。
实现
- 属性
示例
下面的示例演示 Count 修改 属性内容之前和之后的属性 ConnectionString 。
static void Main()
{
DbConnectionStringBuilder builder = new DbConnectionStringBuilder();
builder.ConnectionString =
"Data Source=(local);Initial Catalog=AdventureWorks;" +
"Integrated Security=SSPI";
// This should display "3" in the console window.
Console.WriteLine("Original count: " + builder.Count);
builder.Add("Connection Timeout", 25);
// This should display the new connection string and
// the number of items (4) in the console window.
Console.WriteLine(builder.ConnectionString);
Console.WriteLine("New count: " + builder.Count);
Console.WriteLine();
Console.WriteLine("Press Enter to finish.");
Console.ReadLine();
}
Sub Main()
Dim builder As New DbConnectionStringBuilder
builder.ConnectionString = _
"Data Source=(local);Initial Catalog=AdventureWorks;" & _
"Integrated Security=SSPI"
' This should display "3" in the console window.
Console.WriteLine(builder.Count)
builder.Add("Connection Timeout", 25)
' This should display the new connection string and
' the number of items (4) in the console window.
Console.WriteLine(builder.ConnectionString)
Console.WriteLine(builder.Count)
Console.WriteLine()
Console.WriteLine("Press Enter to finish.")
Console.ReadLine()
End Sub
