在C#中,使用DataGridView控件能很方便的显示从数据库中检索的数据.
1.首先，连接数据库
using (sqlConnection cnn = new SqlConnection(strConn))
{
try
{
cnn.Open();
bConn = true;
}
catch (Exception exp)
{
MessageBox.Show(exp.Message);
bConn = false;
}
}
}
2.构造SQL语句去数据库查询,并奖结果放到DataGridView控件
DataSet dataset = new DataSet();
SqlDataAdapter myDataAdapter = new SqlDataAdapter(strSql, cnn);
myDataAdapter.Fill(dataset); //这句跟下面的顺序不能颠倒
dataGridView1.DataSource = dataset.Tables[0];//填充
3.添加DataGridView控件的右键菜单
//在CellMouseClick里操作
private void DataGridView_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
if (e.RowIndex >= 0)
{
dataGridView1.ClearSelection();
dataGridView1.Rows[e.RowIndex].Selected = true; //选中
dataGridView1.CurrentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];//选中单元
DataGridRightMenu.Show(MousePosition.X, MousePosition.Y); //在点击处显示右键菜单
}
}
}
4.对DataGridView的样式进行设置
5.设置显示时候相隔颜色//颜色设置,相隔行颜色不同
public void SetDataGridColor(int nCount)
{
for (int i = 0; i < this.dataGridView1.Rows.Count; )
{
this.dataGridView1.Rows[i].DefaultCellStyle.BackColor = System.Drawing.Color.LightGray;
i += 2;
}
}