EditPoint2.GreaterThan 方法 (TextPoint)

2011-08-12

返回 EditPoint 对象的 AbsoluteCharOffset 属性值是否大于给定 TextPoint 对象的属性值。

命名空间： EnvDTE80
程序集： EnvDTE80（在 EnvDTE80.dll 中）

语法

声明
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

参数

Point
类型：EnvDTE.TextPoint
必选。要与调用点对象进行比较的 TextPoint。

返回值

类型：System.Boolean
如果 Point 的 AbsoluteCharOffset 属性值小于调用 EditPoint 对象的 AbsoluteCharOffset 属性值，则为 true；否则为 false。

实现

EditPoint.GreaterThan(TextPoint)

备注

如果 Point 与调用点对象不在同一文档中，GreaterThan 将引发 ArgumentException 异常。对于 VirtualPoint，如果参数是 VirtualPoint，GreaterThan 将比较虚拟位置，否则它将比较物理位置。

示例

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.");
}