Question

如何使用'Gorkem Gencay' InputDialog从另一个类调用它？ 修改：插入所有代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace InputDialog
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        public static DialogResult ShowInputDialog(ref string input)
        {
            System.Drawing.Size size = new System.Drawing.Size(200, 70);
            Form inputBox = new Form();

            inputBox.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            inputBox.ClientSize = size;
            inputBox.Text = "Name";

            System.Windows.Forms.TextBox textBox = new TextBox();
            textBox.Size = new System.Drawing.Size(size.Width - 10, 23);
            textBox.Location = new System.Drawing.Point(5, 5);
            textBox.Text = input;
            inputBox.StartPosition = FormStartPosition.CenterParent;
            inputBox.Controls.Add(textBox);

            Button okButton = new Button();
            okButton.DialogResult = System.Windows.Forms.DialogResult.OK;
            okButton.Name = "okButton";
            okButton.Size = new System.Drawing.Size(75, 23);
            okButton.Text = "&OK";
            okButton.Location = new System.Drawing.Point(size.Width - 80 - 80, 39);
            inputBox.Controls.Add(okButton);

            Button cancelButton = new Button();
            cancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
            cancelButton.Name = "cancelButton";
            cancelButton.Size = new System.Drawing.Size(75, 23);
            cancelButton.Text = "&Cancel";
            cancelButton.Location = new System.Drawing.Point(size.Width - 80, 39);
            inputBox.Controls.Add(cancelButton);

            inputBox.AcceptButton = okButton;
            inputBox.CancelButton = cancelButton;

            DialogResult result = inputBox.ShowDialog();
            input = textBox.Text;
            return result;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string input = "hede";
            ShowInputDialog(ref input);
        }
    }
}

我正在尝试以下而不是使用私有void Form1_Load（对象发件人，EventArgs e），但不起作用：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace InputDialog
{
    class Class1
    {
        Form1 frm = new Form1();
        string input = "hede";
        frm.ShowInputDialog(ref input);
    }
}

Answer 1

将if方法定义为static，因此在调用它时需要使用类名而不是对象名。假设在ShowInputDialog类中定义了ShowInputDialog，您应该按如下方式调用它：

Form1

顺便说一下，该方法定义为string input = "hede"; Form1.ShowInputDialog(ref input);，因此您必须将其设为private或public。

internal定义也有错误。您无法从程序上下文中调用过程代码（Class1）。定义一个方法并将对话框调用代码放在这个方法中：

frm.ShowInputDialog(ref input);

如何从其他类调用输入对话框（Gorkem Gencay）

1 个答案: