摘要：
2使用System.Text；45namespaceWindowsFormsDemo6｛7usingSystem.Configuration；conn））33｛34using（DataSeset=newDataSet（））35｛36ad.Fill（set）；37this.dataGridView1.DataSource=set.Tables[0].DefaultView；
先上学习测试的一些截图
1：获取多个控件上面的值(checkbox,combobox,textbox,radiobutton)
2:获取到选择行的主键ID的value,方便我们进一步CURD
3:获取选择一行的数据以及一行是多少列
4：绑定显示自定义的列头名称
5：选中一行的属性设置操作
6：全部代码
1 using System; 2 using System.Text; 3 using System.Windows.Forms; 4 5 namespace WindowsFormsDemo 6 { 7 using System.Configuration; 8 using System.Data; 9 using System.Data.SqlClient; 10 11 public partial class Form1 : Form 12 { 13 private static readonly string connectionstr = ConfigurationManager.ConnectionStrings["hydb"].ConnectionString; 14 15 public Form1() 16 { 17 InitializeComponent(); 18 } 19 20 private void Form1_Load(object sender, EventArgs e) 21 { 22 // TODO: 这行代码将数据加载到表“huayaDBDataSet.K_City”中。您可以根据需要移动或删除它。 23 this.k_CityTableAdapter.Fill(this.huayaDBDataSet.K_City); 24 BingDataGridview(); 25 } 26 27 private void BingDataGridview() 28 { 29 using (SqlConnection conn = new SqlConnection(connectionstr)) 30 { 31 conn.Open(); 32 using (SqlDataAdapter ad = new SqlDataAdapter("select ID,userID,userno ,Optext,Remark from F_OperateLog", conn)) 33 { 34 using (DataSet set = new DataSet()) 35 { 36 ad.Fill(set); 37 this.dataGridView1.DataSource = set.Tables[0].DefaultView;//绑定数据 38 dataGridView1.MultiSelect = false;//单选 39 dataGridView1.Rows[1].Selected=true;//默认第二行为选中的状态 40 } 41 } 42 } 43 } 44 45 private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e) 46 { 47 string id = dataGridView1.CurrentRow.Cells[0].Value.ToString(); 48 if (!string.IsNullOrEmpty(id)) 49 { 50 // MessageBox.Show($"获取到主键ID={id}"); 51 labshowid.Text = $"获取到主键ID={id}"; 52 } 53 } 54 /// <summary> 55 /// 获取选中行的key ID 56 /// </summary> 57 /// <param name="sender"></param> 58 /// <param name="e"></param> 59 private void BtnSelectID_Click(object sender, EventArgs e) 60 { 61 string id = dataGridView1.CurrentRow.Cells[0].Value.ToString(); 62 MessageBox.Show($"dataGridView1.CurrentRow.Cells[0].Value.ToString={id}, 下面就可以使用主键ID的值来CURD的操作"); 63 } 64 /// <summary> 65 /// 获取选中行的所有数据 66 /// </summary> 67 /// <param name="sender"></param> 68 /// <param name="e"></param> 69 private void BtnSelectRowData_Click(object sender, EventArgs e) 70 { 71 72 int rowIndex = dataGridView1.CurrentRow.Index;//选中当前行的索引 73 int cellCount = dataGridView1.GetCellCount(DataGridViewElementStates.Selected);//获取一行的列有多少个 74 75 StringBuilder sb = new StringBuilder(); 76 for (int i = 0; i < cellCount; i++) 77 { 78 sb.Append(dataGridView1.CurrentRow.Cells[i].Value.ToString() + ","); 79 } 80 MessageBox.Show(sb.ToString().TrimEnd(',')+ ", cellCount=" + cellCount+ ",rowIndex=" + rowIndex); 81 } 82 83 private void BtnProStart_Click(object sender, EventArgs e) 84 { 85 for (int i = 1; i < 100; i++) 86 { 87 this.progressBar1.Value = (int)(((i + 1) / 100.0) * 100); 88 Application.DoEvents(); 89 int miao = new Random().Next(1, 10); 90 System.Threading.Thread.Sleep(miao * 10); 91 } 92 MessageBox.Show("数据加载成功！", "请稍后", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk); 93 } 94 95 private void BtnSubmit_Click(object sender, EventArgs e) 96 { 97 string textboxStr = this.texboxStr.Text; 98 string comboxStr = this.comboBox1.Text; 99 string radiobtnStr = this.radioButton1.Checked == true ? "男" : "女"; 100 string textChekboxStr = string.IsNullOrEmpty(this.checkBox1.Text) == true ? "" : this.checkBox1.Text; 101 string textChekboxStr2 = string.IsNullOrEmpty(this.checkBox2.Text) == true ? "" : this.checkBox2.Text; 102 103 string msg = $"textboxStr={textboxStr},comboxStr={comboxStr},radiobtnStr={radiobtnStr},textChekboxStr={ textChekboxStr},textChekboxStr2={textChekboxStr2}"; 104 MessageBox.Show(msg, "结果是："); 105 } 106 } 107 }