EditPoint.GreaterThan 方法 (TextPoint)

發行項
10/28/2012

傳回 EditPoint 物件的 AbsoluteCharOffset 屬性值是否大於指定 TextPoint 物件屬性的值。

命名空間： EnvDTE
組件： EnvDTE (在 EnvDTE.dll 中)

語法

'宣告
Function GreaterThan ( _
    Point As TextPoint _
) As Boolean

bool GreaterThan(
    TextPoint Point
)

bool GreaterThan(
    [InAttribute] TextPoint^ Point
)

abstract GreaterThan : 
        Point:TextPoint -> bool

function GreaterThan(
    Point : TextPoint
) : boolean

參數

Point
型別：EnvDTE.TextPoint
必要項。要與呼叫點物件作比較的 TextPoint。

傳回值

型別：System.Boolean
如果相較之下 Point 的 AbsoluteCharOffset 屬性值小於呼叫 EditPoint 物件的 AbsoluteCharOffset 屬性值，則為 true，否則為 false。

備註

如果 Point 與呼叫點物件所在的文件不同，GreaterThan 就會擲回 ArgumentException 例外狀況。如果引數是 VirtualPoint，則 GreaterThan 與 VirtualPoint 會針對虛擬位置進行比較，否則兩者會針對「實體」位置進行比較。

範例

Sub GreaterThanExample(ByVal dte As DTE)

    ' Create a new text file.
    dte.ItemOperations.NewFile()
    Dim txtDoc As TextDocument = _
        CType(dte.ActiveDocument.Object(), TextDocument)

    ' Create an edit point at the empty text document's StartPoint 
    ' and EndPoint; CompareEditPoints displays "point1 and point2
    ' occupy the same location."
    Dim point1 As EditPoint = txtDoc.StartPoint.CreateEditPoint()
    Dim point2 As EditPoint = txtDoc.EndPoint.CreateEditPoint()
    CompareEditPoints(point1, point2)

    ' Insert ten lines of text.
    Dim i As Integer
    For i = 1 To 10
        point1.Insert("Line " & i.ToString() & vbCrLf)
    Next

    ' Create an edit point at the text document's StartPoint and 
    ' EndPoint; CompareEditPoints displays "point1 comes before point2."
    point1 = txtDoc.StartPoint.CreateEditPoint()
    point2 = txtDoc.EndPoint.CreateEditPoint()
    CompareEditPoints(point1, point2)

End Sub

Sub CompareEditPoints(ByVal point1 As EditPoint, _
    ByVal point2 As EditPoint)

    If point1.LessThan(point2) Then
        MsgBox("point1 comes before point2.")
    ElseIf point1.GreaterThan(point2) Then
        MsgBox("point2 comes before point1.")
    ElseIf (point1.EqualTo(point2)) Then
        MsgBox("point1 and point2 occupy the same location.")
    End If

End Sub

public void GreaterThanExample(DTE dte)
{
    // Create a new text file.
    dte.ItemOperations.NewFile(@"General\Text File", "", 
        Constants.vsViewKindPrimary);
    TextDocument txtDoc = 
        (TextDocument)dte.ActiveDocument.Object("");

    // Create an edit point at the empty text document's StartPoint 
    // and EndPoint; CompareEditPoints displays "point1 and point2
    // occupy the same location."
    EditPoint point1 = txtDoc.StartPoint.CreateEditPoint();
    EditPoint point2 = txtDoc.EndPoint.CreateEditPoint();
    CompareEditPoints(point1, point2);

    // Insert ten lines of text.
    for (int i = 1; i <= 10; i++)
    {
        point1.Insert("Line " + i.ToString() + Environment.NewLine);
    }

    // Create an edit point at the text document's StartPoint and 
    // EndPoint; CompareEditPoints displays "point1 comes before point2."
    point1 = txtDoc.StartPoint.CreateEditPoint();
    point2 = txtDoc.EndPoint.CreateEditPoint();
    CompareEditPoints(point1, point2);
}

void CompareEditPoints(EditPoint point1, EditPoint point2)
{
    if (point1.LessThan(point2))
        MessageBox.Show("point1 comes before point2.");
    else if (point1.GreaterThan(point2))
        MessageBox.Show("point2 comes before point1.");
    else if (point1.EqualTo(point2))
        MessageBox.Show("point1 and point2 occupy the same location.");
}