dateTimePicker1时间日历控件设置月初1号
2019-7-16 
132
dateTimePicker1.Value = DateTime.Now.AddDays(1 - DateTime.Now.Day); //月初...
>>阅读全文C#asp.net sql查询数据 显示在 TextBox1上
2019-7-16 59
using (SqlConnection conn = new SqlConnection("server=.;uid=sa;pwd=****;database=sanjiang")) { conn.Open(); SqlCo...
>>阅读全文C#asp.net sql 增删改查代码
2019-7-16 312
string MyConn="server=127.0.0.1;uid=user;pwd=123456;database=Northwind;Trusted_Connection=no";//定义数据库连接参数SqlConnection MyConnectio...
>>阅读全文C#asp.net 时间段判断 是否在指定时间段内
2019-7-16 71
string st1 = "07:59"; string st2 = "15:00"; string time = DateTime.Now.ToString("H:mm"); if (time...
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C#sql UPDATE 更新（某个数据）（更新密码-从用户名）
2019-7-16 197
SqlConnection conn = new SqlConnection("server=.;uid=sa;pwd=*****;database=sanjiang"); conn.Open(); string yonghuming = T...
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C#asp.net SQL多条件查询数据 （从用户名---查询某一天时间）
2019-7-16 54
SqlConnection con2 = new SqlConnection("server=.;uid=sa;pwd=*****;database=sanjiang"); con2.Open(); string tools2 ...
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C#asp.net SQL多条件删除指定时间内数据
2019-7-16 40
string MyConn = "server=.;uid=sa;pwd=****;database=sanjiang"; SqlConnection MyConnection = new SqlConnection(MyConn); st...
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C#asp.net GridView1数据导出EXLS表格
2019-7-16 35
public override void VerifyRenderingInServerForm(Control control) { //base.VerifyRenderingInServerForm(control); } protected void But...
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C#sql时间段+用户名查询 显示在GridView1
2019-7-16 67
protected void Button3_Click(object sender, EventArgs e) { try { string MyConn = "server=.;uid=sa;pwd=****;database=sanjian...
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