/// <summary>
/// 删除选中数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DelBtn_Click(object sender, EventArgs e)
{
//弹出删除提示框
DialogResult dr = MessageBox.Show("你确定要删除一条记录吗？", "确认删除", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
if (dr == DialogResult.OK)
{
dbName = DataBase.Text; //选择的数据库的名字
tbName = DataTable.Text; //选择的表的名字
if (dbName.Equals("请选择数据库") || tbName.Equals("选择表"))
{
MessageBox.Show("请选择数据库和表");
return;
}
string idName = dataView.Columns[0].HeaderText; //主键名
string id = dataView.CurrentRow.Cells[0].Value.ToString(); //主键值
try {
//删除数据
MysqlUtil.DelById(dbName, tbName, idName, id);
}catch (Exception ee)
{
MessageBox.Show(ee.Message);
}
DataTable dt = MysqlUtil.ExecuteAll(dbName, tbName);
dataView.DataSource = dt;
rows = dataView.RowCount;
}
}
/// <summary>
/// 选中表时，执行查询全部语句
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DataTable_SelectedIndexChanged(object sender, EventArgs e)
{
dbName = DataBase.Text; //选择的数据库的名字
tbName = DataTable.Text; //选择的表的名字
if (tbName.Equals("选择表"))
{
return;
}
DataTable dt = MysqlUtil.ExecuteAll(dbName, tbName);
dataView.DataSource = dt;
rows = dataView.RowCount;
}
/// <summary>
/// 当选中某一个数据库时，读取该数据库下的所有表
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void DataBase_SelectedIndexChanged(object sender, EventArgs e)
{
dbName = DataBase.Text;//选择的数据库的名字
if (dbName.Equals("选择数据库"))
{
return;
}
List <string> tables = MysqlUtil.GetTablesByDB(dbName);
DataTable.Items.Clear();
DataTable.Text = "选择表";
foreach (string table in tables)
{
DataTable.Items.Add(table);
}
}
/// <summary>
/// 连接测试，并更新
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ConnBtn_Click(object sender, EventArgs e)
{
string dataSource = dataSourceInput.Text;
string port = portInput.Text;
string user = userInput.Text;
string pwd = pwdInput.Text;
MysqlUtil.Config(dataSource, port, user, pwd); //配置基本信息
List <string> dataBases = MysqlUtil.GetDataBases(); //获取连接下所有的数据库名
DataBase.Items.Clear();
DataBase.Text = "选择数据库";
DataTable.Text = "选择表";
foreach (string db in dataBases)
{
DataBase.Items.Add(db);
}
MessageBox.Show("连接成功！请选择数据库");
}
//结束添加
private void EndAddBtn_Click(object sender, EventArgs e)
{
if (dbName.Equals("请选择数据库") || tbName.Equals("选择表"))
{
MessageBox.Show("请选择数据库和表");
return;
}
//如果不是添加状态，退出
if (!state.Equals("ADD"))
{
return;
}
else
{
for (int i = rows; i < dataView.RowCount; i++)
{
List <string> args = new List <string>();//所有的列值
for (int j = 0; j < dataView.ColumnCount; j++)
{
args.Add(Convert.ToString(dataView.Rows[i].Cells[j].Value));
}
try
{
//插入
MysqlUtil.Insert(dbName, tbName, args);
MessageBox.Show("插入成功！");
}
catch (Exception ee)
{
MessageBox.Show("插入失败！\n" + ee.Message);
}
}
}
state = "FREE";
DataTable dt = MysqlUtil.ExecuteAll(dbName, tbName);
dataView.DataSource = dt;
rows = dataView.RowCount;
}
private void EndUpdateBtn_Click(object sender, EventArgs e)
{
if (dbName.Equals("请选择数据库") || tbName.Equals("选择表"))
{
MessageBox.Show("请选择数据库和表");
return;
}
if (!state.Equals("UPDATE"))
{
return;
}
else
{
//将修改的行进行更新
foreach (int i in updateRows)
{
List <string> args = new List <string>();//所有的列值
for (int j = 0; j < dataView.ColumnCount; j++)
{
args.Add(Convert.ToString(dataView.Rows[i].Cells[j].Value));
}
try
{
MysqlUtil.Update(dbName, tbName, args);
MessageBox.Show("更新成功！");
}
catch (Exception ee)
{
MessageBox.Show("更新失败！" + ee.Message);
}
}
updateRows.Clear();
state = "FREE";
DataTable dt = MysqlUtil.ExecuteAll(dbName, tbName);
dataView.DataSource = dt;
}
}
