private void GvProdList_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == colBtnEdit.Index)
{
DataGridViewRow row = this.gvProdList.Rows[e.RowIndex];
FrmProduct frmProduct = new FrmProduct();
frmProduct.isNew = false;
frmProduct.dsCategoriesCurrencies = (DataSetProducts)this.dsCategoriesCurrencies.Copy();
frmProduct.ProductCode = row.Cells[colProductCode.Index].Value.ToString();
this.Hide();
frmProduct.ShowDialog();
if (frmProduct.dataSaved)
{
GetProductList();
}
frmProduct.Dispose();
this.Show();
}
else if (e.ColumnIndex == colBtnDelete.Index)
{
DialogResult result = MessageBox.Show("Are you sure to delete？",
"Confirm",
MessageBoxButtons.YesNo,
MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
if (result != DialogResult.Yes)
{
return;
}
DataGridViewRow row = this.gvProdList.Rows[e.RowIndex];
String productcode = row.Cells[colProductCode.Index].Value.ToString();
String cmdQuery = @"DELETE FROM PRODUCTS WHERE PRODUCT_CODE=:PRODUCT_CODE";
CdbcConnection con = UtilCommon.getConnection();
CdbcCommand cmd = new CdbcCommand(cmdQuery, con);
CdbcParameter para = new CdbcParameter(":PRODUCT_CODE", CdbcOracleDbType.Varchar2);
para.Value = productcode;
cmd.Parameters.Add(para);
try
{
cmd.ExecuteNonQuery();
GetProductList();
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message,
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error)
;
}
}
}
public static void CommandCollection_ExecuteMultiQuery_Sample()
{
Console.WriteLine(String.Format("{0} CommandCollection_ExecuteMultiQuery_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
Console.WriteLine("--------------------------");
Console.WriteLine("CommandCollection.ExecuteMultiQuery is original Method of CdbcCommandCollection.");
Console.WriteLine("It can execute multi command in same transaction.");
Console.WriteLine("It is designed to improve performance and Data Concurrency and Consistency");
Console.WriteLine("--------------------------");
Console.WriteLine("This sample will insert 3 records and than update one of the record.");
Console.WriteLine("--------------------------");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string queryStr1 = @"INSERT INTO CODE_SAMPLE(VAR1 , DATE1 ) VALUES (:VAR1, SYSDATE)";
CdbcCommand cmd1 = new CdbcCommand(queryStr1, con);
string[] arrParas = new string[3];
for (int i = 0; i < arrParas.Length; i++)
{
arrParas[i] = Guid.NewGuid().ToString();
}
cmd1.ArrayBindCount = 3;
CdbcParameter prm =
new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas;
cmd1.Parameters.Add(prm);
string queryStr2 = @"UPDATE CODE_SAMPLE SET DATE1 = DATE1+1 WHERE VAR1=:VAR1";
CdbcCommand cmd2 = new CdbcCommand(queryStr2, con);
prm = new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas[0];
cmd2.Parameters.Add(prm);
Console.WriteLine("--------------------------");
Console.WriteLine("SQL 1 :" + queryStr1);
Console.WriteLine("Para 1 :");
for (int i = 0; i < arrParas.Length; i++)
{
Console.WriteLine(arrParas[i]);
}
Console.WriteLine("");
Console.WriteLine("SQL 2 :" + queryStr2);
Console.WriteLine("--------------------------");
try
{
CdbcCommandCollection cmdCollection = new CdbcCommandCollection();
cmdCollection.Add(cmd1);
cmdCollection.Add(cmd2);
cmdCollection.ExecuteMultiQuery();
for (int iCmd = 0; iCmd < cmdCollection.Count; iCmd++)
{
Console.WriteLine(String.Format("Command {0} Result : {1} ", iCmd, cmdCollection.ExecuteNonQueryResult[iCmd].ToString()));
}
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
//Confirm Data
Console.WriteLine("---Confirm Data-----------------------");
string queryStrSelect = @"SELECT VAR1, DATE1 FROM CODE_SAMPLE WHERE VAR1 IN (:VAR1_0 ,:VAR1_1,:VAR1_2) ";
CdbcCommand cmdSelect = new CdbcCommand(queryStrSelect, con);
for (int i = 0; i < arrParas.Length; i++)
{
prm = new CdbcParameter("VAR1_" + i.ToString(), CdbcOracleDbType.Varchar2);
prm.Value = arrParas[i];
cmdSelect.Parameters.Add(prm);
}
try
{
DbDataReader reader = cmdSelect.ExecuteReader();
while (reader.Read())
{
for (int i = 0; i < reader.FieldCount; i++)
{
Console.WriteLine(String.Format("{0} = {1}", reader.GetName(i), reader.GetValue(i).ToString()));
}
}
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
//Clear Data
Console.WriteLine("---Clear Data-----------------------");
string queryStrDelete = @"DELETE FROM CODE_SAMPLE WHERE VAR1=:VAR1";
CdbcCommand cmdDelete = new CdbcCommand(queryStrDelete, con);
cmdDelete.ArrayBindCount = 3;
prm =
new CdbcParameter("VAR1", CdbcOracleDbType.Varchar2);
prm.Value = arrParas;
cmdDelete.Parameters.Add(prm);
try
{
int i = cmdDelete.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) Deleted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
public static void Command_ExecuteNonQuery_Sample()
{
Console.WriteLine(String.Format("{0} Command_ExecuteNonQuery_Sample", databaseProductType.ToString()));
Console.WriteLine("Start");
CdbcConnection con = UtilCommon.getConnection(databaseProductType);
string queryStr = @"INSERT INTO CODE_SAMPLE(VAR1, NUM1, DATE1, CLOB1, BLOB1) VALUES (:VAR1, :NUM1, :DATE1, :CLOB1, :BLOB1)";
CdbcCommand cmd = new CdbcCommand(queryStr, con);
string guid = Guid.NewGuid().ToString();
CdbcParameter para = new CdbcParameter(":VAR1", CdbcOracleDbType.Varchar2);
para.Value = guid;
cmd.Parameters.Add(para);
para = new CdbcParameter(":NUM1", CdbcOracleDbType.Decimal);
para.Value = DateTime.Now.Second;
cmd.Parameters.Add(para);
para = new CdbcParameter(":DATE1", CdbcOracleDbType.Date);
para.Value = DateTime.Now;
cmd.Parameters.Add(para);
para = new CdbcParameter(":CLOB1", CdbcOracleDbType.Clob);
para.Value = DateTime.Now.Second;
cmd.Parameters.Add(para);
para = new CdbcParameter(":BLOB1", CdbcOracleDbType.Blob);
//para.Value = System.IO.File.ReadAllBytes(@"your file path");
cmd.Parameters.Add(para);
Console.WriteLine("--------------------------");
Console.WriteLine("Sample 1 : Insert a record into table CODE_SAMPLE");
Console.WriteLine("Sql : " + queryStr);
try
{
int i = cmd.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) inserted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
string queryStrDelete = @"DELETE FROM CODE_SAMPLE WHERE VAR1=:VAR1";
CdbcCommand cmdDelete = new CdbcCommand(queryStrDelete, con);
para = new CdbcParameter(":VAR1", CdbcOracleDbType.Varchar2);
para.Value = guid;
cmdDelete.Parameters.Add(para);
Console.WriteLine("--------------------------");
Console.WriteLine("Sample 2 : Delete the record we inserted before.");
Console.WriteLine("Sql : " + queryStrDelete);
try
{
int i = cmdDelete.ExecuteNonQuery();
Console.WriteLine(String.Format("{0} Line(s) deleted.", i));
}
catch (Exception ex)
{
Console.WriteLine("Exception:");
Console.WriteLine(ex.Message);
}
Console.WriteLine("--------------------------");
Console.WriteLine("End");
}
private bool SaveData()
{
CdbcConnection con = UtilCommon.getConnection();
string cmdQuery;
if (isNew)
{
cmdQuery = @"INSERT INTO PRODUCTS("
+ " PRODUCT_NAME"
+ " , PRODUCT_PRICE"
+ " , CURRENCY_CODE"
+ " , PRODUCT_SUMMARY"
+ " , CATEGORY_CODE"
+ " , PRODUCT_IMAGE"
+ " , RELEASE_DATE"
+ " , PRODUCT_CODE"
+ " ) "
+ "VALUES ("
+ " :PRODUCT_NAME"
+ " , :PRODUCT_PRICE"
+ " , :CURRENCY_CODE"
+ " , :PRODUCT_SUMMARY"
+ " , :CATEGORY_CODE"
+ " , :PRODUCT_IMAGE"
+ " , :RELEASE_DATE"
+ " , :PRODUCT_CODE"
+ ")";
}
else
{
cmdQuery = @"UPDATE PRODUCTS "
+ " SET PRODUCT_NAME = :PRODUCT_NAME"
+ " , PRODUCT_PRICE = :PRODUCT_PRICE"
+ " , CURRENCY_CODE = :CURRENCY_CODE"
+ " , PRODUCT_SUMMARY = :PRODUCT_SUMMARY"
+ " , CATEGORY_CODE = :CATEGORY_CODE"
+ " , PRODUCT_IMAGE = :PRODUCT_IMAGE"
+ " , RELEASE_DATE = :RELEASE_DATE"
+ " WHERE PRODUCT_CODE = :PRODUCT_CODE";
}
// Create the OracleCommand
CdbcCommand cmd = new CdbcCommand(cmdQuery, con);
CdbcParameter para = new CdbcParameter(":PRODUCT_NAME", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
para.Value = txtProductName.Text;
cmd.Parameters.Add(para);
para = new CdbcParameter(":PRODUCT_PRICE", Cdbc.Common.Data.Type.CdbcOracleDbType.Decimal);
int iPrice;
if (Int32.TryParse(txtPrice.Text, out iPrice))
{
para.Value = iPrice;
}
else
{
MessageBox.Show("Invalid price.",
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error)
;
return(false);
}
cmd.Parameters.Add(para);
para = new CdbcParameter(":CURRENCY_CODE", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
para.Value = cbCurrency.SelectedValue;
cmd.Parameters.Add(para);
para = new CdbcParameter(":PRODUCT_SUMMARY", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
para.Value = txtSummary.Text;
cmd.Parameters.Add(para);
para = new CdbcParameter(":CATEGORY_CODE", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
para.Value = cbCategory.SelectedValue;
cmd.Parameters.Add(para);
para = new CdbcParameter(":PRODUCT_IMAGE", Cdbc.Common.Data.Type.CdbcOracleDbType.Blob);
para.Value = UtilCommon.ImageToByteArray(pictureBox1.Image);
cmd.Parameters.Add(para);
para = new CdbcParameter(":RELEASE_DATE", Cdbc.Common.Data.Type.CdbcOracleDbType.Date);
para.Value = new DateTime(dtReleaseDate.Value.Year, dtReleaseDate.Value.Month, dtReleaseDate.Value.Day);
cmd.Parameters.Add(para);
para = new CdbcParameter(":PRODUCT_CODE", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
para.Value = ProductCode;
cmd.Parameters.Add(para);
//if (!isNew)
//{
// para = new CdbcParameter(":ISBN2", Cdbc.Common.Data.Type.CdbcOracleDbType.Varchar2);
// para.Value = txtISBN.Text;
// cmd.Parameters.Add(para);
//}
try
{
cmd.ExecuteNonQuery();
return(true);
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message,
"Error",
MessageBoxButtons.OK,
MessageBoxIcon.Error)
;
return(false);
}
}
