摘要：1.xaml 2.class 3.xaml.cs 阅读全文

摘要：实现控件的拖拽和跟随鼠标移动图1（拖拽）:图2（鼠标点击移动）：代码：namespace TestSelect{ public partial class DragForm : Form { public DragForm() { InitializeComponent(); } private void DragForm_Load(object sender, EventArgs e) { label1.MouseDown += new MouseEventHandl... 阅读全文

摘要：子窗体（FromA）改变父窗体(MainForm)中控件的属性（利用委托）代码（MainForm.cs）：namespace TestSelect{ public partial class MainForm : Form { public MainForm() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { FormA fm = new FormA(... 阅读全文

摘要：根据用户权限获得DataTable,利用递归绑定TreeView //用重载实现递归，返回符合要求的所有Treeview菜单项 private void MyTreeView(DataTable table, string ParentID, System.Windows.Forms.TreeNode PNode) { DataRow[] dr = table.Select("PID=" + ParentID); try { if (dr.Length > 0... 阅读全文

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