错误：可以设计选择的类，但不是文件中的第一个类。 Visual Studio要求设计人员使用文件中的第一个类。 如何移动类代码以使它在第一个类中。 我不知道程序我是一名机械工程师。我试图用C＃
做我的项目using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using GraphSynth.Representation;
using GraphSynth.Forms;
using GraphSynth.Generation;
namespace GraphSynth.Forms
{
public class chooseViaHumanGui : RecognizeChooseApply
{
public override int choose(List<option> options, candidate cand)
{
SearchIO.output("There are " + options.Count.ToString() + " recognized locations.", 2);
if (options.Count == 0)
{
SearchIO.output("Sorry there are no rules recognized.", 0);
return int.MinValue;
}
else if (options.Count > Program.settings.maxRulesToDisplay)
{
SearchIO.output("Sorry there are too many rules to show.", 0);
return int.MinValue;
}
else
{
SearchIO.output("Double-click on one to show the location.", 2);
chooseDisplay choiceDisplay = new chooseDisplay();
choiceDisplay.promptUser(options, (Boolean)(cand.recipe.Count == 0));
return choiceDisplay.choice;
}
}
public override double[] choose(option RC, candidate cand)
{ return null; }
#region Constructors
public chooseViaHumanGui(Boolean _display)
: base(Program.seed, Program.rulesets, Program.settings.maxRulesToApply, _display,
Program.settings.recompileRules, Program.settings.execDir, Program.settings.compiledparamRules) { }
#endregion
}
// This is the class Program for choose display //
public partial class chooseDisplay : Form
{
#region Fields
List<option> rulesToDisplay = new List<option>();
List<int> optionNumbers = new List<int>();
public int choice = int.MinValue;
System.Windows.Forms.Timer checkForStopTimer = new System.Windows.Forms.Timer();
#endregion
public chooseDisplay()
{
checkForStopTimer.Tick += new EventHandler(processTimer_Tick);
checkForStopTimer.Interval = 500;
checkForStopTimer.Start();
}
public void promptUser(List<option> RCs, Boolean hideUndo)
{
InitializeComponent();
rulesToDisplay = RCs;
string ruleNo, location;
int option = 0;
this.Text = "Choices from RuleSet #" + RCs[0].ruleSetIndex.ToString();
for (int i = 0; i != rulesToDisplay.Count; i++)
{
option = i + 1;
ruleNo = rulesToDisplay[i].ruleNumber.ToString();
location = rulesToDisplay[i].location.ToString();
recognizedRulesList.Items.Add(option.ToString() + ".\t" + ruleNo + "\t" + location);
optionNumbers.Add(i);
}
if (hideUndo) this.undoButton.Enabled = false;
ShowDialog();
}
private void showGraph_Click(object sender, EventArgs e)
{
SearchIO.addAndShowGraphDisplay(rulesToDisplay[recognizedRulesList.SelectedIndex].location.copy(),
"Recognized Location " + recognizedRulesList.SelectedItem.ToString());
}
private void removeFromList_Click(object sender, EventArgs e)
{
int numToRemove = recognizedRulesList.CheckedIndices.Count;
if (numToRemove == recognizedRulesList.Items.Count)
{
MessageBox.Show("You cannot remove all possible options.", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (numToRemove == recognizedRulesList.Items.Count - 1)
{
int[] toRemove = new int[numToRemove];
recognizedRulesList.CheckedIndices.CopyTo(toRemove, 0);
for (int i = numToRemove; i != 0; i--)
{
if (toRemove[i - 1] != optionNumbers.Count)
{
recognizedRulesList.Items.RemoveAt(toRemove[i - 1]);
optionNumbers.RemoveAt(toRemove[i - 1]);
}
}
if (DialogResult.Yes == MessageBox.Show(
"You are removing all but one option [" +
recognizedRulesList.Items[0].ToString() +
"]. Would you like to apply this option?",
"Apply Remaining Option?", MessageBoxButtons.YesNo, MessageBoxIcon.Question))
{
choice = optionNumbers[0];
this.Close();
}
}
else
{
int[] toRemove = new int[numToRemove];
recognizedRulesList.CheckedIndices.CopyTo(toRemove, 0);
for (int i = numToRemove; i != 0; i--)
{
if (toRemove[i - 1] != optionNumbers.Count)
{
recognizedRulesList.Items.RemoveAt(toRemove[i - 1]);
optionNumbers.RemoveAt(toRemove[i - 1]);
}
}
}
}
private void applyButton_Click(object sender, EventArgs e)
{
int numChecked = recognizedRulesList.CheckedIndices.Count;
checkForStopTimer.Stop();
if (numChecked == 0)
{
MessageBox.Show("No Options Checked.", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
checkForStopTimer.Start();
}
else if (numChecked == 1)
{
if (!Program.settings.confirmEachUserChoice ||
(DialogResult.Yes == MessageBox.Show(
"Apply Option: " + recognizedRulesList.CheckedItems[0].ToString() + "?",
"Apply Option?", MessageBoxButtons.YesNo, MessageBoxIcon.Question)))
{
int[] toSaveVector = new int[numChecked];
recognizedRulesList.CheckedIndices.CopyTo(toSaveVector, 0);
choice = optionNumbers[toSaveVector[0]];
this.Close();
}
else checkForStopTimer.Start();
}
else if (DialogResult.Yes == MessageBox.Show(
"You cannot apply all of these at the same time. Would you simply like to remove all unchecked Options?", "Remove Unchecked?",
MessageBoxButtons.YesNo, MessageBoxIcon.Question))
{
int[] toSaveVector = new int[numChecked];
recognizedRulesList.CheckedIndices.CopyTo(toSaveVector, 0);
List<int> toSave = new List<int>(toSaveVector);
for (int i = recognizedRulesList.Items.Count; i != 0; i--)
{
if (!toSave.Contains(i - 1))
{
recognizedRulesList.Items.RemoveAt(i - 1);
optionNumbers.RemoveAt(i - 1);
}
}
checkForStopTimer.Start();
}
else checkForStopTimer.Start();
}
void processTimer_Tick(object sender, EventArgs e)
{
if (Program.terminateRequest)
{
recognizedRulesList.SetItemChecked(recognizedRulesList.Items.Count - 1, true);
for (int i = 0; i != recognizedRulesList.Items.Count - 1; i++)
recognizedRulesList.SetItemChecked(i, false);
applyButton_Click(sender, e);
}
}
private void undo_Click(object sender, EventArgs e)
{
if ((!Program.settings.confirmEachUserChoice ||
(DialogResult.Yes == MessageBox.Show("Undo the last rule that was applied?",
"Undo Last Rule?", MessageBoxButtons.YesNo, MessageBoxIcon.Question))))
{
choice = -1;
this.Close();
}
}
private void stopButton_Click(object sender, EventArgs e)
{
if ((!Program.settings.confirmEachUserChoice ||
(DialogResult.Yes == MessageBox.Show("Send Stop message to Generation Process?",
"Send Stop?", MessageBoxButtons.YesNo, MessageBoxIcon.Question))))
{
choice = int.MinValue;
this.Close();
}
}
}
}
答案 0 :(得分：2)
你在同一个代码文件中声明了两个类。将第二个移动到另一个文件。
编辑：实际上，由于第二个是表单，并且可能是首先创建的代码文件，因此您应该将第一个类移到自己的文件中。
答案 1 :(得分：2)
请看这里：https://stackoverflow.com/a/8864376/3317555。基本上choosedisplay类与另一个类共享一个文件。您应该做的就是将choosedisplay移动到它自己的文件中。
编辑：修正了不好的措辞。