Question

c#datagridview怎么设置显示多少个数据

Answer 1

1、实现一个用于处理数据库数据检索的详细信息的方法。下面的代码示例实现一个 GetData 方法，该方法对一个 SqlDataAdapter 组件进行初始化，并使用该组件填充 DataTable。然后，将 DataTable 绑定到 BindingSource 组件。请确保将 connectionString 变量的值设置为与数据库相应的值。
private void GetData(string selectCommand)
{
try
{
String connectionString =
"Integrated Security=SSPI;Persist Security Info=False;" +
"Initial Catalog=Northwind;Data Source=localhost";
dataAdapter = new SqlDataAdapter(selectCommand, connectionString);

SqlCommandBuilder commandBuilder = new SqlCommandBuilder(dataAdapter);
//Oracle DataSet 操作
/*
connectionString
*/

DataTable table = new DataTable();
table.Locale = System.Globalization.CultureInfo.InvariantCulture;
dataAdapter.Fill(table);
bindingSource1.DataSource = table;

//dataGridView1.AutoResizeColumns(
// DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
}
catch (SqlException)
{
MessageBox.Show("To run this example, replace the value of the " +
"connectionString variable with a connection string that is " +
"valid for your system.");
}
}
2、在窗体的 Load 事件处理程序中，将 DataGridView 控件绑定到 BindingSource 组件，并调用 GetData 方法从数据库中检索数据
private void Form1_Load(object sender, System.EventArgs e)
{
dataGridView1.DataSource = bindingSource1;
GetData("select * from Customers");
}