Question

我使用了五个文本框，我希望使用C＃将保存按钮保存在文本框中的所有内容中。

private void textBox1_TextChanged(object sender, EventArgs e) {
}
private void textBox2_TextChanged(object sender, EventArgs e) {
}
private void textBox3_TextChanged(object sender, EventArgs e) {
}
private void textBox4_TextChanged(object sender, EventArgs e) {
}
private void textBox5_TextChanged(object sender, EventArgs e) {
}
private void button2_Click(object sender, EventArgs e) {
}

Answer 1

我会保存为xml，以便于阅读。使用DataSet可以轻松地读取和编写xml。

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        const string FILENAME = @"c:\temp\text.xml";
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            DataSet ds = new DataSet("Data Set");

            DataTable dt = new DataTable("Data");
            ds.Tables.Add(dt);

            dt.Columns.Add("Name", typeof(string));
            dt.Columns.Add("Value", typeof(string));

            dt.Rows.Add(new object[] { "Text Box 1", textBox1.Text });
            dt.Rows.Add(new object[] { "Text Box 2", textBox2.Text });
            dt.Rows.Add(new object[] { "Text Box 3", textBox3.Text });
            dt.Rows.Add(new object[] { "Text Box 4", textBox4.Text });

            ds.WriteXml(FILENAME, XmlWriteMode.WriteSchema);

            //use following to read
            ds.ReadXml(FILENAME);
            textBox1.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 1").Select(x => x.Field<string>("Value")).FirstOrDefault();
            textBox2.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 2").Select(x => x.Field<string>("Value")).FirstOrDefault();
            textBox3.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 3").Select(x => x.Field<string>("Value")).FirstOrDefault();
            textBox4.Text = ds.Tables["Data"].AsEnumerable().Where(x => x.Field<string>("Name") == "Text Box 4").Select(x => x.Field<string>("Value")).FirstOrDefault();
        }


    }
}

如何在保存按钮中编码？

1 个答案: