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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;using System.IO; namespa... 阅读全文
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DataGridView控件中的各种事件都无法直接响应Cell中内容的变化，包括KeyPress等事件，可以采用下面方法 无法响应Cell中的回车键 private void dataGridViewBarcode_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { if (e.C... 阅读全文
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1 Aspose.Cells.License li = new Aspose.Cells.License(); 2 li.SetLicense("Aspose.Cells.lic"); 3 Aspose.Cells.Workbook wk = new Aspose.Cells.Workbook(); 4 W... 阅读全文
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C# -- 文件的压缩与解压（GZipStream） 文件的压缩与解压 需引入 System.IO.Compression; 1.C#代码（入门案例） 1 Console.WriteLine("压缩文件..............."); 2 using (FileStream fr = File.OpenRead("d:\\test.txt"... 阅读全文
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private void button1_Click_1(object sender, EventArgs e) { Form2 form = new Form2(); form.FormBorderStyle = FormBorderStyle.None; form.TopLevel = false; ... 阅读全文
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//遍历TextBox控件 foreach (Control item in this.Controls) { if (item is TextBox) { item.Text = ""; } } 阅读全文
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序列化对象 public string SerializeObject(object obj) { IFormatter formatter = new BinaryFormatter(); string result = string.Empty; using (MemoryStream stream = new MemoryStream(... 阅读全文
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简单点的数据表： 实体类： using System;using System.Collections.Generic;using System.Linq;using System.Text; namespace 省市联动{ public class tblArea { public int AreaId { get; set; } public st... 阅读全文
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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;using System.Data.SqlCli... 阅读全文
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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Data;using System.Data.SqlClient;using System.Configuration; namespace _001{ public static class SqlHe... 阅读全文