EditPoint.LessThan(TextPoint) 方法

参考

定义

命名空间:: EnvDTE

程序集:: EnvDTE.dll

程序集:

重要

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返回被调用 EditPoint 对象的 AbsoluteCharOffset 的值是否小于给定 TextPoint 对象的值。

public:
 bool LessThan(EnvDTE::TextPoint ^ Point);

public:
 bool LessThan(EnvDTE::TextPoint ^ Point);

bool LessThan(EnvDTE::TextPoint const & Point);

[System.Runtime.InteropServices.DispId(32)]
public bool LessThan (EnvDTE.TextPoint Point);

[<System.Runtime.InteropServices.DispId(32)>]
abstract member LessThan : EnvDTE.TextPoint -> bool

Public Function LessThan (Point As TextPoint) As Boolean

参数

Point: TextPoint

必需。要与调用点对象进行比较的 TextPoint。

Boolean

一个布尔值，如果 Point 的 AbsoluteCharOffset 属性值大于调用点对象的 AbsoluteCharOffset 属性值，则该值为 true。

实现

LessThan(TextPoint)

属性: DispIdAttribute

示例

Sub LessThanExample(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

void LessThanExample(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.");  
}

注解

LessThan 如果与 ArgumentException Point 调用点对象不在同一文档中，则将引发。对于 VirtualPoint 对象， LessThan 如果参数是，则比较虚拟位置 VirtualPoint 。否则，它将比较 "物理" 位置。

适用于

EditPoint.LessThan(TextPoint) 方法

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