StringFormat.GetTabStops(Single) 方法

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v9.0.0-preview.6.24327.6

Source:

StringFormat.cs

获取此 StringFormat 对象的制表位。

public:
 cli::array <float> ^ GetTabStops([Runtime::InteropServices::Out] float % firstTabOffset);

public float[] GetTabStops (out float firstTabOffset);

member this.GetTabStops : single -> single[]

Public Function GetTabStops (ByRef firstTabOffset As Single) As Single()

参数

firstTabOffset

Single

文本行开头和第一个制表位之间的空格数。

返回

Single[]

制表位之间的距离数组（以空格数为单位）。

示例

下面的示例设计用于 Windows 窗体，它需要 PaintEventArgse，这是 Paint 事件处理程序的参数。 该代码执行以下操作：

• 设置 StringFormat的制表位。

• 绘制字符串和布局矩形。 请注意，字符串包含选项卡。 StringFormat 的选项卡设置指定制表符文本的偏移量。

• 获取制表位并使用或检查值。

public:
   void GetSetTabStopsExample1( PaintEventArgs^ e )
   {
      Graphics^ g = e->Graphics;

      // Tools used for drawing, painting.
      Pen^ redPen = gcnew Pen( Color::FromArgb( 255, 255, 0, 0 ) );
      SolidBrush^ blueBrush = gcnew SolidBrush( Color::FromArgb( 255, 0, 0, 255 ) );

      // Layout and format for text.
      System::Drawing::Font^ myFont = gcnew System::Drawing::Font( "Times New Roman",12 );
      StringFormat^ myStringFormat = gcnew StringFormat;
      Rectangle enclosingRectangle = Rectangle(20,20,500,100);
      array<Single>^tabStops = {150.0f,100.0f,100.0f};

      // Text with tabbed columns.
      String^ myString = "Name\tTab 1\tTab 2\tTab 3\nGeorge Brown\tOne\tTwo\tThree";

      // Set the tab stops, paint the text specified by myString, and draw the
      // rectangle that encloses the text.
      myStringFormat->SetTabStops( 0.0f, tabStops );
      g->DrawString( myString, myFont, blueBrush, enclosingRectangle, myStringFormat );
      g->DrawRectangle( redPen, enclosingRectangle );

      // Get the tab stops.
      float firstTabOffset;
      array<Single>^tabStopsObtained = myStringFormat->GetTabStops( firstTabOffset );
      for ( int j = 0; j < tabStopsObtained->Length; j++ )
      {
         // Inspect or use the value in tabStopsObtained[j].
         Console::WriteLine( "\n  Tab stop {0} = {1}", j, tabStopsObtained[ j ] );
      }
   }

public void GetSetTabStopsExample1(PaintEventArgs e)
{
    Graphics     g = e.Graphics;
             
    // Tools used for drawing, painting.
    Pen          redPen = new Pen(Color.FromArgb(255, 255, 0, 0));
    SolidBrush   blueBrush = new SolidBrush(Color.FromArgb(255, 0, 0, 255));
             
    // Layout and format for text.
    Font         myFont = new Font("Times New Roman", 12);
    StringFormat myStringFormat = new StringFormat();
    Rectangle    enclosingRectangle = new Rectangle(20, 20, 500, 100);
    float[]      tabStops = {150.0f, 100.0f, 100.0f};
             
    // Text with tabbed columns.
    string       myString =
        "Name\tTab 1\tTab 2\tTab 3\nGeorge Brown\tOne\tTwo\tThree";
             
    // Set the tab stops, paint the text specified by myString, and draw the
             
    // rectangle that encloses the text.
    myStringFormat.SetTabStops(0.0f, tabStops);
    g.DrawString(myString, myFont, blueBrush,
        enclosingRectangle, myStringFormat);
    g.DrawRectangle(redPen, enclosingRectangle);
             
    // Get the tab stops.
    float   firstTabOffset;
    float[] tabStopsObtained = myStringFormat.GetTabStops(out firstTabOffset);
    for(int j = 0; j < tabStopsObtained.Length; j++)
    {
             
        // Inspect or use the value in tabStopsObtained[j].
        Console.WriteLine("\n  Tab stop {0} = {1}", j, tabStopsObtained[j]);
    }
}

Public Sub GetSetTabStopsExample1(ByVal e As PaintEventArgs)
    Dim g As Graphics = e.Graphics

    ' Tools used for drawing, painting.
    Dim redPen As New Pen(Color.FromArgb(255, 255, 0, 0))
    Dim blueBrush As New SolidBrush(Color.FromArgb(255, 0, 0, 255))

    ' Layout and format for text.
    Dim myFont As New Font("Times New Roman", 12)
    Dim myStringFormat As New StringFormat
    Dim enclosingRectangle As New Rectangle(20, 20, 500, 100)
    Dim tabStops As Single() = {150.0F, 100.0F, 100.0F}

    ' Text with tabbed columns.
    Dim myString As String = "Name" & ControlChars.Tab & "Tab 1" _
    & ControlChars.Tab & "Tab 2" & ControlChars.Tab & "Tab 3" _
    & ControlChars.Cr & "George Brown" & ControlChars.Tab & "One" _
    & ControlChars.Tab & "Two" & ControlChars.Tab & "Three"

    ' Set the tab stops, paint the text specified by myString,the

    '  and draw rectangle that encloses the text.
    myStringFormat.SetTabStops(0.0F, tabStops)
    g.DrawString(myString, myFont, blueBrush, _
    RectangleF.op_Implicit(enclosingRectangle), myStringFormat)
    g.DrawRectangle(redPen, enclosingRectangle)

    ' Get the tab stops.
    Dim firstTabOffset As Single
    Dim tabStopsObtained As Single() = _
    myStringFormat.GetTabStops(firstTabOffset)
    Dim j As Integer
    For j = 0 To tabStopsObtained.Length - 1

        ' Inspect or use the value in tabStopsObtained[j].
        Console.WriteLine(ControlChars.Cr & "  Tab stop {0} = {1}", _
        j, tabStopsObtained(j))
    Next j
End Sub