首先介紹DataGridView的一些設置,標題居中,第一列不顯示,標題不排序
dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;//設置DataGridView列標題居中
dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;//設置DataGridView中數據自動填充
foreach (DataGridViewColumn item in dataGridView1.Columns)//設置DataGridView列標題的默認排序(不會進行排序)
{
item.SortMode = DataGridViewColumnSortMode.NotSortable;
}
dataGridView1.RowHeadersVisible = false;//第一列不顯示
手動設DataGridView各個列的名稱,按自己的需要去手動添加列,這裏不要選擇從數據庫獲取資料。
private void DataGridLoad_Click(object sender, EventArgs e)
{
//方法一
////數據庫文件路徑
//string connectionString = " E:\\test3.db";
//SQLiteConnectionStringBuilder connstr = new SQLiteConnectionStringBuilder();
//connstr.DataSource = connectionString;
////建立數據庫連接
//SQLiteConnection conn = new SQLiteConnection();
//conn.ConnectionString = connstr.ToString();
//conn.Open();
////查詢語句
//string sqlCommandString = "select * from table3";
////利用 Adapter 轉換結果到 datagrid
//SQLiteDataAdapter adapter = new SQLiteDataAdapter(sqlCommandString, conn);
//DataSet ds = new DataSet();
//adapter.Fill(ds);
//DataView dv = ds.Tables[0].DefaultView;
////關閉連接,並把結果顯示在datagrid上
//conn.Close();
//conn.Dispose();
//dataGridView1.DataSource = dv;
//方法二
// 連接數據庫
dataGridView1.AutoGenerateColumns = false;
string connectionString = "data source = E:\\test3.db";
SQLiteConnection dbConnection = new SQLiteConnection(connectionString);//***
dbConnection.Open();
string sqlCommandString = "select * from table3";
//利用 Adapter 轉換結果到 datagrid
SQLiteDataAdapter adapter = new SQLiteDataAdapter(sqlCommandString, dbConnection);
// DataSet ds = new DataSet();
DataTable dt = new DataTable();
// adapter.Fill(ds);
adapter.Fill(dt);
//DataView dv = ds.Tables[0].DefaultView;
//關閉連接,並把結果顯示在datagrid上
dbConnection.Close();
dbConnection.Dispose();
//dataGridView1.DataSource = dv;
dataGridView1.DataSource = dt;
dataGridView1.Columns["ID"].DataPropertyName = dt.Columns["ID"].ToString();
dataGridView1.Columns["NAME"].DataPropertyName = dt.Columns["Name"].ToString();
dataGridView1.Columns["AGE"].DataPropertyName = dt.Columns["Age"].ToString();//因爲只選了ID, NAME所以dt沒有相關數據
dataGridView1.Columns["TEL"].DataPropertyName = dt.Columns["TEL"].ToString();
}
自己建立的數據庫如下,如何創建可以查看以前博客https://blog.csdn.net/weixin_42974146/article/details/106794396
效果如圖
參考【https://jingyan.baidu.com/album/fd8044fa180c055031137a08.html?picindex=2】