CAD二开中,经常会用到用户交互功能,常见的方法如下:
GetKeyword 方法提示用户在 AutoCAD 命令提示下输入关键字,GetString 方法提示用户在 AutoCAD 命令提示下输入字符串。两者就有区别又有相似处,getkeyword只允许用户输入指定的字符。
GetKeyword 方法:AllowNone 属性为False强制用户输入关键字,而禁止输入 NULL(按回车键)。Keywords 用于添加有效的关键字列表。
GetString 方法:该方法接收两个参数。PromptStringOptions 对象允许控制用户输入以及怎样显示提示信息。PromptStringOptions 对象的 AllowSpaces 属性控制是否允许输入空格。如果为 False ,按空格键将中止用户输入。
getkeyword案例如下:
附代码:
cs
using AcTools;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
namespace Acdemo
{
public class Acdemo
{
[CommandMethod("xx")]
public void ACDE()
{
Document acDoc = Application.DocumentManager.MdiActiveDocument;
Database db = HostApplicationServices.WorkingDatabase;
Line line = new Line(Point3d.Origin, new Point3d(100, 100, 0));
Line line1 = new Line(Point3d.Origin, new Point3d(50, 200, 0));
//db.AddEntityToModeSpace(line);
PromptKeywordOptions pKeyOpts = new PromptKeywordOptions("");
pKeyOpts.Message = "\nEnter an option ";
pKeyOpts.Keywords.Add("Line");
pKeyOpts.Keywords.Add("Circle");
pKeyOpts.Keywords.Add("Arc");
pKeyOpts.AllowNone = false;
PromptResult pKeyRes = acDoc.Editor.GetKeywords(pKeyOpts);
//Application.ShowAlertDialog("Entered keyword: " +
// pKeyRes.StringResult);
//if (pKeyRes.StringResult == "Line")
//{
// db.AddLineToModeSpace(new Point3d(), new Point3d(100, 100, 0));
//}
switch (pKeyRes.StringResult)
{
case "Line":
Database db1 = HostApplicationServices.WorkingDatabase;
db1.AddEntityToModeSpace(line1);
break;
case "Circle":
db.AddCircleModeSpace(new Point3d(), 100);
break;
case "Arc":
db.AddArcToModeSpace(new Point3d(0,0,0), new Point3d(500, 100, 0), new Point3d(200, 200, 0));
break;
}
}
}
}
getstring用法:
cs
using AcTools;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
using System;
using System.Collections.Generic;
using System.Linq;
namespace Acdemo
{
public class Acdemo
{
public static void GetStringFromUser(string message)
{
Document acDoc = Application.DocumentManager.MdiActiveDocument;
PromptStringOptions pStrOpts = new PromptStringOptions("\nEnter your name: ");
pStrOpts.AllowSpaces = true;
PromptResult pStrRes = acDoc.Editor.GetString(pStrOpts);
Application.ShowAlertDialog(message + "\nThe name entered was: " +
pStrRes.StringResult);
}
[CommandMethod("xx")]
public void ACDE()
{
GetStringFromUser("Hello,world !");
}
}
}