DataRepeater.DisplayedItemCount 属性

2012-10-25

可以选择获取的 DataRepeaterItem 项的数目是显示在一个 DataRepeater 控件，包括部分已显示的项。

命名空间： Microsoft.VisualBasic.PowerPacks
程序集： Microsoft.VisualBasic.PowerPacks.Vs（在 Microsoft.VisualBasic.PowerPacks.Vs.dll 中）

语法

声明
<BrowsableAttribute(False)> _
Public ReadOnly Property DisplayedItemCount ( _
    includePartialItems As Boolean _
) As Integer

[BrowsableAttribute(false)]
public int this[
    bool includePartialItems
] { get; }

[BrowsableAttribute(false)]
public:
property int DisplayedItemCount[bool includePartialItems] {
    int get (bool includePartialItems);
}

[<BrowsableAttribute(false)>]
member DisplayedItemCount : int

JScript 不支持索引属性。

参数

includePartialItems
类型：System.Boolean
包含的true 部分显示了计数的项目;由完全仅显示项目的 false 。

属性值

类型：System.Int32
计数所显示的项。

备注

使用此属性来确定有多少个 DataRepeaterItem 项会显示在 DataRepeater 控件。

示例

下面的示例演示如何返回计数。 DataRepeater 控件中显示的项。

Private Sub Button1_Click() Handles Button1.Click
    Dim msgString As String
    Dim intFull As Integer
    Dim intPartial As Integer
    ' Get the count without including partially displayed items.
    intFull = DataRepeater1.DisplayedItemCount(False)
    ' Get the count, including partially displayed items.
    intPartial = DataRepeater1.DisplayedItemCount(True)
    ' Create the message string.
    msgString = CStr(intFull)
    msgString &= " items are fully visible and "
    ' Subtract the full count from the partial count.
    msgString &= CStr(intPartial - intFull)
    msgString &= " items are partially visible."
    MsgBox(msgString)
End Sub

private void button1_Click(System.Object sender, System.EventArgs e)
{
    string msgString;
    int intFull;
    int intPartial;
    string stringFull;
    string stringPartial;
    // Get the count without including partially displayed items.
    intFull = dataRepeater1.get_DisplayedItemCount(false);
    // Get the count, including partially displayed items.
    intPartial = dataRepeater1.get_DisplayedItemCount(true);
    // Create the message string.
    stringFull = intFull.ToString();
    msgString = stringFull;
    msgString = msgString + " items are fully visible and ";
    // Subtract the full count from the partial count.
    intPartial = intPartial - intFull;
    stringPartial = intPartial.ToString();
    msgString = msgString + stringPartial;
    msgString = msgString + " items are partially visible.";
    MessageBox.Show(msgString);
}