Winform的控件以及DataGridView的一般使用

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

 using System;
 using System.Text;
 using System.Windows.Forms;

 namespace WindowsFormsDemo
 {
     using System.Configuration;
     using System.Data;
     using System.Data.SqlClient;

     public partial class Form1 : Form
     {
         private static readonly string connectionstr = ConfigurationManager.ConnectionStrings["hydb"].ConnectionString;

         public Form1()
         {
             InitializeComponent();
         }

         private void Form1_Load(object sender, EventArgs e)
         {
             // 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。
             this.k_CityTableAdapter.Fill(this.huayaDBDataSet.K_City);
             BingDataGridview();
         }

         private void BingDataGridview()
         {
             using (SqlConnection conn = new SqlConnection(connectionstr))
             {
                 conn.Open();
                 using (SqlDataAdapter ad = new SqlDataAdapter("select ID,userID,userno ,Optext,Remark from F_OperateLog", conn))
                 {
                     using (DataSet set = new DataSet())
                     {
                         ad.Fill(set);
                         this.dataGridView1.DataSource = set.Tables[].DefaultView;//绑定数据
                         dataGridView1.MultiSelect = false;//单选
                         dataGridView1.Rows[].Selected=true;//默认第二行为选中的状态
                     }
                 }
             }
         }

         private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
         {
             string id = dataGridView1.CurrentRow.Cells[].Value.ToString();
             if (!string.IsNullOrEmpty(id))
             {
                 // MessageBox.Show($"获取到主键ID={id}");
                 labshowid.Text = $"获取到主键ID={id}";
             }
         }
         /// <summary>
         /// 获取选中行的key ID
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void BtnSelectID_Click(object sender, EventArgs e)
         {
             string id = dataGridView1.CurrentRow.Cells[].Value.ToString();
             MessageBox.Show($"dataGridView1.CurrentRow.Cells[0].Value.ToString={id},\n下面就可以使用主键ID的值来CURD的操作");
         }
         /// <summary>
         /// 获取选中行的所有数据
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void BtnSelectRowData_Click(object sender, EventArgs e)
         {

             int rowIndex = dataGridView1.CurrentRow.Index;//选中当前行的索引
             int cellCount = dataGridView1.GetCellCount(DataGridViewElementStates.Selected);//获取一行的列有多少个

             StringBuilder sb = new StringBuilder();
             for (int i = ; i < cellCount; i++)
             {
                 sb.Append(dataGridView1.CurrentRow.Cells[i].Value.ToString() + ",");
             }
             MessageBox.Show(sb.ToString().TrimEnd(',')+ ",\n\ncellCount=" + cellCount+ ",rowIndex=" + rowIndex);
         }

         private void BtnProStart_Click(object sender, EventArgs e)
         {
             for (int i = ; i < ; i++)
             {
                 this.progressBar1.Value = (int)(((i + ) / 100.0) * );
                 Application.DoEvents();
                 int miao = new Random().Next(, );
                 System.Threading.Thread.Sleep(miao * );
             }
             MessageBox.Show("数据加载成功！", "请稍后", MessageBoxButtons.YesNo, MessageBoxIcon.Asterisk);
         }

         private void BtnSubmit_Click(object sender, EventArgs e)
         {
             string textboxStr = this.texboxStr.Text;
             string comboxStr = this.comboBox1.Text;
             string radiobtnStr = this.radioButton1.Checked == true ? "男" : "女";
             string textChekboxStr = string.IsNullOrEmpty(this.checkBox1.Text) == true ? "" : this.checkBox1.Text;
             string textChekboxStr2 = string.IsNullOrEmpty(this.checkBox2.Text) == true ? "" : this.checkBox2.Text;

             string msg = $"textboxStr={textboxStr},comboxStr={comboxStr},radiobtnStr={radiobtnStr},textChekboxStr={ textChekboxStr},textChekboxStr2={textChekboxStr2}";
             MessageBox.Show(msg, "结果是：");
         }
     }
 }