摘要:
1.根据 heisetoufa 的博客c# winform 用鼠标画拉出来的虚线框,鼠标框选边框效果实现的一个效果 private void Form1_Load(object sender, EventArgs e) { panel1.MouseDown += new MouseEventHandler(MouseDown); panel1.MouseUp += new MouseEventHandler(MouseUp); panel1.MouseMove += new MouseEventHan... 阅读全文
摘要:
1.建立一个控制台测试程序简单实现 using (SqlConnection conn = new SqlConnection("Server=.;database=DB_Test;uid=sa;pwd=111111")) { //查询 conn.Open(); SqlCommand cmd = new SqlCommand("select * from test", conn); SqlDataAdapter... 阅读全文