C# Powerpoint 禁止或允许修改形状

╰半橙微兮° 2023-10-16 22:07 6阅读 0赞

在设定形状属性后，可禁止对形状某些属性的编辑，以达到保护形状格式的目的。常用方法有：锁定形状禁止选择， 和禁止对形状的具体属性进行修改。前者保护形状的所有格式，无法选取，无法修改任何属性。后者，对形状的具体属性，例如形状大小，位置，类型，文本，旋转等，进行编辑限制，以达到保护形状某些属性的目的。

本篇博文，旨在介绍使用我司免费产品，[Free Spire.Presentation][]，使用C\#，创建PPT文档，添加设置形状，并对形状进行保护设置。欢迎大家从我司[官网E-iceblue下载使用][E-iceblue]Free Spire.Presentation，测试这些功能。下载完成后，请将bin文件夹的.dll添加作为Visual Studio的引用。

需要用到的命名空间（namespace）：

using Spire.Presentation;
    using Spire.Presentation.Drawing;
    using System.Drawing;

**步骤一：**创建PPT文档，并添加矩形形状。

Presentation presentation = new Presentation();
    IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 100, 450, 150));

**步骤二：**设置形状格式，为其添加文本，设置文本字体，颜色，对齐方式。

shape.Fill.FillType = FillFormatType.None;
    shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
    shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
    shape.TextFrame.Text = "演示文档:\n    灰色部分表示不可编辑。    绿色和黑色部分表示可编辑";
    shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("楷体");
    shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
    shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;

**步骤三：**利用bool声明禁止改变的属性部分。此处设置可选取，然后再对具体属性保护项进行设置。

shape.Locking.RotationProtection = false;
    shape.Locking.SelectionProtection = false;
    shape.Locking.ResizeProtection = true;
    shape.Locking.PositionProtection = true;
    shape.Locking.ShapeTypeProtection = true;
    shape.Locking.AspectRatioProtection = true;
    shape.Locking.TextEditingProtection = true;
    shape.Locking.AdjustHandlesProtection = true;

**步骤4：**保存presentation文档，启动查看效果。

presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
    System.Diagnostics.Process.Start("result.pptx");

**运行结果图：**

![这里写图片描述][20150818114247125]  
![这里写图片描述][20150818114317843]

**完整代码：**

using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using Spire.Presentation;
    using Spire.Presentation.Drawing;
    using System.Drawing;
    
    namespace test
    {
        class Program
        {
            static void Main(string[] args)
            {
    
                Presentation presentation = new Presentation();
                IAutoShape shape = presentation.Slides[0].Shapes.AppendShape(ShapeType.Rectangle, new RectangleF(50, 100, 450, 150));
    
                shape.Fill.FillType = FillFormatType.None;
                shape.ShapeStyle.LineColor.Color = Color.DarkGreen;
                shape.TextFrame.Paragraphs[0].Alignment = TextAlignmentType.Justify;
                shape.TextFrame.Text = "演示文档:\n    灰色部分表示不可编辑。    绿色和黑色部分表示可编辑";
                shape.TextFrame.Paragraphs[0].TextRanges[0].LatinFont = new TextFont("楷体");
                shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.FillType = FillFormatType.Solid;
                shape.TextFrame.Paragraphs[0].TextRanges[0].Fill.SolidColor.Color = Color.Black;
    
                shape.Locking.RotationProtection = false;
                shape.Locking.SelectionProtection = false;
                shape.Locking.ResizeProtection = true;
                shape.Locking.PositionProtection = true;
                shape.Locking.ShapeTypeProtection = true;
                shape.Locking.AspectRatioProtection = true;
                shape.Locking.TextEditingProtection = true;
                shape.Locking.AdjustHandlesProtection = true;
    
                presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
                System.Diagnostics.Process.Start("result.pptx");
            }
        }
    }

[Free Spire.Presentation]: http://www.e-iceblue.com/Introduce/free-presentation-component.html
[E-iceblue]: http://www.e-iceblue.com/Download/download-presentation-for-net-free.html
[20150818114247125]: https://img-blog.csdn.net/20150818114247125
[20150818114317843]: https://img-blog.csdn.net/20150818114317843