表单插入关闭时数据网格未更新
本文关键字：数据网 网格 更新 数据 插入 表单 | 更新日期: 2023-09-27 18:20:34
我有一个表单名称fMainProfile，在这个表单中我有数据网格并加载到数据库sql服务器
这是我的代码
public partial class fMainProfile : Form
{
public fMainProfile()
{
InitializeComponent();
//showdata();
}
private void button1_Click(object sender, EventArgs e)
{
fProfile op = new fProfile();
op.ShowDialog();
}
public void showdata() {
try
{
String db = "server=localhost;database=bms_setup;uid=sa;pwd=root234"; //string untuk mewakili alamat servers
//SqlConnectionStringBuilder SQLSERVER = new SqlConnectionStringBuilder();
//SQLSERVER.DataSource = "hicapture";
//SQLSERVER.InitialCatalog = "test";
//SQLSERVER.IntegratedSecurity = true;
SqlConnection myconnection = new SqlConnection(db);//mengaktifkan atau mengimport database
myconnection.Open(); // membuka koneksi database
String sqlExecution = "SELECT satuan.id, satuan.mac, satuan.serial_number, identitas.nomor_urut, identitas.nama as nama_satuan, jenis.detail_jenis, tbl_nama_type.nama_type FROM identitas LEFT JOIN satuan ON (identitas.satuan_id = satuan.id) LEFT JOIN jenis ON (identitas.jenis_id = jenis.t_id_jenis) LEFT JOIN tbl_nama_type ON (identitas.nama_type_id = tbl_nama_type.id)";
SqlCommand cmd = new SqlCommand(sqlExecution, myconnection); //perintah sql berupa query / properti obyek untuk sebuah objek SqlDataAdapter
GlobalClass.adap = new SqlDataAdapter(cmd); //Jembatan atau perantara antara aplikasi yang kita buat dengan database sql server melalui koneksi
SqlCommandBuilder sqlCommandBuilder = new SqlCommandBuilder(GlobalClass.adap);
GlobalClass.dt = new DataTable(); // gambaran (representasi) dari sebuah table didalam memory yang fungsinya untuk menyimpan data sementara
GlobalClass.adap.Fill(GlobalClass.dt); // membuat DataTable menjadi sama struktur kolom nya
dgView.DataSource = GlobalClass.dt; //mengambil datasource dan memasukkan ke datagrid
myconnection.Close(); // menutup koneksi
}
catch (Exception kesalahan) // menangkap eksepsi/kesalahan
{
//MessageBox.Show("Salah input ip atau Password Sql".ToString()); // message
//MessageBox.Show(kesalahan.ToString()); // message
}
}
/*public void PerformRefresh()
{
this.dgView.Text = DateTime.Now.ToLongTimeString();
}*/
private void fMainProfile_Load(object sender, EventArgs e)
{
try
{
showdata();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
}
对于DataTable和SqlDataAdapter，我创建一个类名GlobalClass
这是我的代码
class GlobalClass
{
public static SqlDataAdapter adap;
public static DataTable dt;
}
方法按钮1_Click是打开窗体输入数据，类fProfile。在这个fProfile中，我有一个按钮将所有输入文本保存到sql server。
这是我的代码
public void saveBtn_Click(object sender, System.EventArgs e)
{
try
{
if (txtMac.Text.Trim() == "" || txtSerial.Text.Trim() == "" || txtNomor.Text.Trim() == "" || txtNama.Text.Trim() == "" || txtSandi.Text.Trim() == "")
{
MessageBox.Show("Please fill all the entry....");
}
else
{
Dictionary<String, String> dataSatuan = new Dictionary<String, String>();
Dictionary<String, String> dataIden = new Dictionary<String, String>();
Dictionary<String, String> dataSatSqlserv = new Dictionary<String, String>();
Dictionary<String, String> dataIndSqlserv = new Dictionary<String, String>();
dataSatuan.Add("mac", this.txtMac.Text);
dataSatuan.Add("serial_number", this.txtSerial.Text);
cDatabaseSQLite.Insert("satuan", dataSatuan);
//int satuanIDSqlite = 0;
/*String db = "setup.sqlite";
String s = String.Format("Data Source={0}", db);
SQLiteConnection cnn = new SQLiteConnection(s);
//SQLiteCommand cmd1 = cnn.CreateCommand();
string sql1 = "SELECT id FROM satuan where mac = '" + this.txtMac.Text + "'";
cnn.Open();
SQLiteCommand mycommand = new SQLiteCommand(cnn);
mycommand.CommandText = sql1;
int satuanIDSqlite = ((int)mycommand.ExecuteScalar());
cnn.Close();*/
String db = "setup.sqlite";
String s = String.Format("Data Source={0}", db);
SQLiteConnection cnn = new SQLiteConnection(s);
String sql1 = "SELECT id FROM satuan where serial_number = " + this.txtSerial.Text + "";
cnn.Open();
SQLiteCommand mycommand = new SQLiteCommand(cnn);
mycommand.CommandText = sql1;
object value = mycommand.ExecuteScalar();
cnn.Close();
dataIden.Add("satuan_id", value.ToString());
dataIden.Add("nomor_urut", this.txtNomor.Text);
dataIden.Add("nama", this.txtNama.Text);
dataIden.Add("sandi", this.txtSandi.Text);
dataIden.Add("jenis_id", cmbJenis.SelectedValue.ToString());
dataIden.Add("nama_type_id", cmbType.SelectedValue.ToString());
//
dataSatSqlserv.Add("mac", this.txtMac.Text);
dataSatSqlserv.Add("serial_number", this.txtSerial.Text);
cDatabaseSQLServer.Insert("satuan", dataSatSqlserv);
int satuanID = 0;
SqlConnection connection = new SqlConnection("server=localhost;database=bms_setup;uid=sa;pwd=root234");
SqlCommand cmd = connection.CreateCommand();
cmd.CommandText = "SELECT id FROM satuan where serial_number = " + this.txtSerial.Text + "";
connection.Open();
satuanID = ((int)cmd.ExecuteScalar());
connection.Close();
//buat query select
dataIndSqlserv.Add("satuan_id", satuanID.ToString());
dataIndSqlserv.Add("nomor_urut", this.txtNomor.Text);
dataIndSqlserv.Add("nama", this.txtNama.Text);
dataIndSqlserv.Add("sandi", this.txtSandi.Text);
dataIndSqlserv.Add("jenis_id", cmbJenis.SelectedValue.ToString());
dataIndSqlserv.Add("nama_type_id", cmbType.SelectedValue.ToString());
cDatabaseSQLite.Insert("identitas", dataIden);
cDatabaseSQLServer.Insert("identitas", dataIndSqlserv);
//_owner.PerformRefresh();
GlobalClass.adap.Update(GlobalClass.dt);
this.Close();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
问题是当我点击保存按钮并关闭表单fProfile时，如何更新fMainProfile中的数据网格？
当我尝试表单fProfile成功保存到sql server并关闭时，但表单fMainProfile中的数据网格不会更新或刷新。
如何修复？
调用显示保存到sql后的数据，如下
private void button1_Click(object sender, EventArgs e)
{
fProfile op = new fProfile();
op.ShowDialog();
showdata();
}