设置字符串提示的默认值

Question

编辑器 class 有一个名为 GetString 的方法，它通过 AutoCAD 的命令提示符提示用户输入字符串值。我在这个包装器方法中调用它：

public static string PromptUserForString(string message = "Enter a string: ", string defaultAnswer = "")
{
    return _editor.GetString("\n" + message).StringResult;
}

参数消息成为提示输入字符串时用户看到的消息。我该如何设置它，以便默认答案的值自动设置为答案，这样如果用户立即按回车键，它就会变成下面屏幕截图中的值

因此 1 会自动输入为答案，这意味着用户可以按回车键输入 1 的值或将 1 更改为他们想要的任何非默认答案

Answer 1

我粘贴了一些代码作为不同提示的示例：

using System;
using System.Collections.Generic;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.ApplicationServices;

namespace EditorUtilities
{
    /// <summary>
    /// Prompts with the active document ( MdiActiveDocument )
    /// </summary>
    public class EditorHelper : IEditorHelper
    {
        private readonly Editor _editor;

        public EditorHelper(Document document)
        {
            _editor = document.Editor;
        }

        public PromptEntityResult PromptForObject(string promptMessage, Type allowedType, bool exactMatchOfAllowedType)
        {
            var polyOptions = new PromptEntityOptions(promptMessage);
            polyOptions.SetRejectMessage("Entity is not of type " + allowedType);
            polyOptions.AddAllowedClass(allowedType, exactMatchOfAllowedType);
            var polyResult = _editor.GetEntity(polyOptions);
            return polyResult;
        }

        public PromptPointResult PromptForPoint(string promptMessage, bool useDashedLine = false, bool useBasePoint = false, Point3d basePoint = new Point3d(),bool allowNone = true)
        {
            var pointOptions = new PromptPointOptions(promptMessage);
            if (useBasePoint)
            {
                pointOptions.UseBasePoint = true;
                pointOptions.BasePoint = basePoint;
                pointOptions.AllowNone = allowNone;
            }

            if (useDashedLine)
            {
                pointOptions.UseDashedLine = true;
            }
            var pointResult = _editor.GetPoint(pointOptions);
            return pointResult;
        }

        public PromptPointResult PromptForPoint(PromptPointOptions promptPointOptions)
        {
            return _editor.GetPoint(promptPointOptions);
        }

        public PromptDoubleResult PromptForDouble(string promptMessage, double defaultValue = 0.0)
        {
            var doubleOptions = new PromptDoubleOptions(promptMessage);
            if (Math.Abs(defaultValue - 0.0) > Double.Epsilon)
            {
                doubleOptions.UseDefaultValue = true;
                doubleOptions.DefaultValue = defaultValue;
            }
            var promptDoubleResult = _editor.GetDouble(doubleOptions);
            return promptDoubleResult;
        }

        public PromptIntegerResult PromptForInteger(string promptMessage)
        {
            var promptIntResult = _editor.GetInteger(promptMessage);
            return promptIntResult;
        }

        public PromptResult PromptForKeywordSelection(
            string promptMessage, IEnumerable<string> keywords, bool allowNone, string defaultKeyword = "")
        {
            var promptKeywordOptions = new PromptKeywordOptions(promptMessage) { AllowNone = allowNone };
            foreach (var keyword in keywords)
            {
                promptKeywordOptions.Keywords.Add(keyword);
            }
            if (defaultKeyword != "")
            {
                promptKeywordOptions.Keywords.Default = defaultKeyword;
            }
            var keywordResult = _editor.GetKeywords(promptKeywordOptions);
            return keywordResult;
        }

        public Point3dCollection PromptForRectangle(out PromptStatus status, string promptMessage)
        {
            var resultRectanglePointCollection = new Point3dCollection();
            var viewCornerPointResult = PromptForPoint(promptMessage);
            var pointPromptStatus = viewCornerPointResult.Status;
            if (viewCornerPointResult.Status == PromptStatus.OK)
            {
                var rectangleJig = new RectangleJig(viewCornerPointResult.Value);
                var jigResult = _editor.Drag(rectangleJig);
                if (jigResult.Status == PromptStatus.OK)
                {
                    // remove duplicate point at the end of the rectangle
                    var polyline = rectangleJig.Polyline;
                    var viewPolylinePoints = GeometryUtility.GetPointsFromPolyline(polyline);
                    if (viewPolylinePoints.Count == 5)
                    {
                        viewPolylinePoints.RemoveAt(4); // dont know why but true, probably mirror point with the last point
                    }
                }
                pointPromptStatus = jigResult.Status;
            }
            status = pointPromptStatus;
            return resultRectanglePointCollection;
        }

        public PromptSelectionResult PromptForSelection(string promptMessage = null, SelectionFilter filter = null)
        {
            var selectionOptions = new PromptSelectionOptions { MessageForAdding = promptMessage };
            var selectionResult = String.IsNullOrEmpty(promptMessage) ? _editor.SelectAll(filter) : _editor.GetSelection(selectionOptions, filter);
            return selectionResult;
        }

        public PromptSelectionResult PromptForSelection(PromptSelectionOptions promptSelectionOptions,SelectionFilter filter = null)
        {
            return _editor.GetSelection(promptSelectionOptions, filter);
        }

        public void WriteMessage(string message)
        {
            _editor.WriteMessage(message);
        }

        public void DrawVector(Point3d from, Point3d to, int color, bool drawHighlighted)
        {
            _editor.DrawVector(from, to, color, drawHighlighted);
        }
    }
}

设置字符串提示的默认值

Set default value for string prompt

.net

c#

autocad

autocad-plugin