how to get a value from texbox c# to insert to database - c#

i tried to saved a value in DB, but when i make the insert, the DB don`t save any data from texbox when they texbox is load from a javascript, this is my insert:
ConectarBD();
Tabb = new SqlCommand("Insert into peliculas Values(#nombre_pelicula,#dias_arriendo,#valor_dia,#total_arriendo,#descuento,#total_pagar) ", Conn);
Dadap.InsertCommand = Tabb;
Dadap.InsertCommand.Parameters.Add("#nombre_pelicula", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters.Add("#dias_arriendo", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters.Add("#valor_dia", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters.Add("#total_arriendo", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters.Add("#descuento", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters.Add("#total_pagar", SqlDbType.VarChar);
Dadap.InsertCommand.Parameters["#nombre_pelicula"].Value = txtNombrePelicula.Text;
Dadap.InsertCommand.Parameters["#dias_arriendo"].Value = txtNumDias.Text;
Dadap.InsertCommand.Parameters["#valor_dia"].Value = txtValorDia.Text;
Dadap.InsertCommand.Parameters["#total_arriendo"].Value = lblTotalArriendo.Text;
Dadap.InsertCommand.Parameters["#descuento"].Value =txtDescuento.Text;
Dadap.InsertCommand.Parameters["#total_pagar"].Value = txtTotalPagar.Text;
Dadap.InsertCommand.ExecuteNonQuery();
lblMensaje.Text = "Datos Grabados";
Conn.Close();
Limpiar();
txtRut.Focus();


Your insert looks wrong, try the following code and change column1,2,3... to columns names in your database.
using (SqlCommand cmd = new SqlCommand())
{
cmd.CommandText = "INSERT Into peliculas (Column1, Column1,Column2,Column3,Column4,Column5,Column6) Values(#nombre_pelicula,#dias_arriendo,#valor_dia,#total_arriendo,#descuento,#total_pagar)";
cmd.Connection = con;
cmd.Parameters.AddWithValue("#nombre_pelicula", txtNombrePelicula.Text);
cmd.Parameters.AddWithValue("#dias_arriendo", txtNumDias.Text);
cmd.Parameters.AddWithValue("#valor_dia", txtValorDia.Text);
cmd.Parameters.AddWithValue("#total_arriendo", lblTotalArriendo.Text);
cmd.Parameters.AddWithValue("#descuento", txtDescuento.Text);
cmd.Parameters.AddWithValue("#total_pagar", txtTotalPagar.Text);
}
cmd.ExecuteNonQuery();

Related

How to insert into specific columns of a database

The problem is am getting an exception error that says data mismatch in the external database when i try to insert
I have a customer booking table with booking id ...pk as auto number, customer.... fk and date in as datetime
Booking id is auto increment so i don't need to insert anything
What i want to achieve is to insert into customer_id and date in thats all but i keep getting the data mismatch and number of query valuesis not the same as destination fields
So what is the right way to put this
using (OleDbConnection myCon = new OleDbConnection(ConfigurationManager.ConnectionStrings["DbConn"].ToString())) {
OleDbCommand cmd = new OleDbCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into customer_booking ([customer_id],[date_in]) values (?,?)";
cmd.Parameters.AddWithValue("#customer_id", txtusername.Text);
cmd.Parameters.AddWithValue("#date_in", dtdate_in);
cmd.Connection = myCon;
myCon.Open();
cmd.ExecuteNonQuery();
System.Windows.Forms.MessageBox.Show("your booking was successful ", "Caption", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
}

use cmd.Parameters.add('...') method as follow :
using (OleDbConnection myCon = new OleDbConnection(ConfigurationManager.ConnectionStrings["DbConn"].ToString())) {
OleDbCommand cmd = new OleDbCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into customer_booking ([customer_id],[date_in]) values (#customer_id,#date_in)";
///* Set your column dataType*/
cmd.Parameters.Add("#customer_id", SqlDbType.VarChar , 50).Value = txtusername.Text;
cmd.Parameters.Add("#date_in", SqlDbType.DateTime).Value = dtdate_in;
cmd.Connection = myCon;
myCon.Open();
cmd.ExecuteNonQuery();
System.Windows.Forms.MessageBox.Show("your booking was successful ", "Caption", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
}

Issue in update statement

I am writing the following lines of code to update the data in access database.
using (OleDbConnection con = new OleDbConnection())
{
con.ConnectionString = String.Format(Queries.dbConnection, databasePath);
con.Open();
using (OleDbCommand cmd = new OleDbCommand())
{
cmd.Connection = con;
cmd.CommandText = "update tblusers set password = #password where userId = #userId;";
cmd.CommandType = System.Data.CommandType.Text;
cmd.Parameters.AddWithValue("#userId", authResult.UserId);
cmd.Parameters.AddWithValue("#password", newPassword);
cmd.ExecuteNonQuery();
}
}
When this line runs cmd.ExecuteNonQuery(); I got the following error:
Syntax error in UPDATE statement
Am I missing anything?
Update - 2
using (OleDbConnection con = new OleDbConnection())
{
con.ConnectionString = String.Format(Queries.dbConnection, databasePath);
con.Open();
using (OleDbCommand cmd = new OleDbCommand())
{
cmd.Connection = con;
cmd.CommandText = "update tblusers set password = ? where userId = ?;";
cmd.CommandType = System.Data.CommandType.Text;
cmd.Parameters.Add("p1", OleDbType.VarChar, 100).Value = newPassword;
cmd.Parameters.Add("p2", OleDbType.Integer).Value = authResult.UserId;
cmd.ExecuteNonQuery();
}
}

First of all: MS Access / OleDB does not used named parameters - but positional parameters. So the order in which you specify the parameters is very much relevant!
Second: OleDB uses the ? as a parameter placeholder.
So try this code:
using (OleDbCommand cmd = new OleDbCommand())
{
cmd.Connection = con;
cmd.CommandText = "update tblusers set [password] = ? where userId = ?;";
cmd.CommandType = System.Data.CommandType.Text;
// parameters - do *NOT* use "AddWithValue", and specify in the *correct order*!
// since the parameters are *positional*, the name provided is irrelevant
cmd.Parameters.Add("p1", OleDbType.VarChar, 50).Value = newPassword;
cmd.Parameters.Add("p2", OleDbType.Integer).Value = authResult.UserId;
cmd.ExecuteNonQuery();
}

Must declare the scalar variable - why won't my parameter work?

I am using the old SqlClient to insert some data with a loop. I have added all the parameters correctly but I get an exception thrown that says
"Must declare the scalar variable \"#KeyProject\"."
string query = #"INSERT INTO dbo.ImportedProjects
(
KeyProject,
KeyCompany,
KeyCountry,
KeyCustomer,
KeyEmployeeProjectManager,
KeyEmployeeProjectOwner,
KeyOrganisation,
ProjectNumber,
ProjectName,
ProjectOwnerNumber,
ProjectManagerNumber,
ProjectOwnerName,
ProjectManagerName,
ProjectOwnerInitials,
ProjectManagerInitials,
CustomerNumber,
CustomerName,
CreatedDate,
ProjectStatus,
ProjectOpenClosed
) VALUES (
#KeyProject,
#KeyCompany,
#KeyCountry,
#KeyCustomer,
#KeyEmployeeProjectManager,
#KeyEmployeeProjectOwner,
#KeyOrganisation,
#ProjectNumber,
#ProjectName,
#ProjectOwnerNumber,
#ProjectManagerNumber,
#ProjectOwnerName,
#ProjectManagerName,
#ProjectOwnerInitials,
#ProjectManagerInitials,
#CustomerNumber,
#CustomerName,
#CreatedDate,
#ProjectStatus,
#ProjectOpenClosed
)";
SqlConnection sqlCon = new SqlConnection("Server=localhost;Database=DatabaseName;Trusted_Connection=True;");
SqlCommand idInsertCms = new SqlCommand("SET IDENTITY_INSERT dbo.ImportedProjects ON", sqlCon);
SqlCommand sqlCmd= new SqlCommand(query, sqlCon);
try
{
sqlCon.Open();
idInsertCms.ExecuteNonQuery();
foreach (var item in importedProjects)
{
sqlCmd.Parameters.Add("#KeyProject", SqlDbType.Int);
sqlCmd.Parameters["#KeyProject"].Value = item.KeyProject;
sqlCmd.Parameters.Add("#KeyCompany", SqlDbType.Int);
sqlCmd.Parameters["#KeyCompany"].Value = item.KeyCompany;
sqlCmd.Parameters.Add("#KeyCountry", SqlDbType.Int);
sqlCmd.Parameters["#KeyCountry"].Value = item.KeyCountry;
sqlCmd.Parameters.Add("#KeyCustomer", SqlDbType.Int);
sqlCmd.Parameters["#KeyCustomer"].Value = item.KeyCustomer;
sqlCmd.Parameters.Add("#KeyEmployeeProjectManager", SqlDbType.Int);
sqlCmd.Parameters["#KeyEmployeeProjectManager"].Value = item.KeyEmployeeProjectManager;
sqlCmd.Parameters.Add("#KeyEmployeeProjectOwner", SqlDbType.Int);
sqlCmd.Parameters["#KeyEmployeeProjectOwner"].Value = item.KeyEmployeeProjectOwner;
sqlCmd.Parameters.Add("#KeyOrganisation", SqlDbType.Int);
sqlCmd.Parameters["#KeyOrganisation"].Value = item.KeyOrganisation;
sqlCmd.Parameters.Add("#ProjectNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectNumber"].Value = item.ProjectNumber;
sqlCmd.Parameters.Add("#ProjectName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectName"].Value = item.ProjectName;
sqlCmd.Parameters.Add("#ProjectOwnerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerNumber"].Value = item.ProjectOwnerNumber;
sqlCmd.Parameters.Add("#ProjectManagerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerNumber"].Value = item.ProjectManagerNumber;
sqlCmd.Parameters.Add("#ProjectOwnerName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerName"].Value = item.ProjectOwnerName;
sqlCmd.Parameters.Add("#ProjectManagerName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerName"].Value = item.ProjectManagerName;
sqlCmd.Parameters.Add("#ProjectOwnerInitials", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerInitials"].Value = item.ProjectOwnerInitials;
sqlCmd.Parameters.Add("#ProjectManagerInitials", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerInitials"].Value = item.ProjectManagerInitials;
sqlCmd.Parameters.Add("#CustomerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#CustomerNumber"].Value = item.CustomerNumber;
sqlCmd.Parameters.Add("#CustomerName", SqlDbType.VarChar);
sqlCmd.Parameters["#CustomerName"].Value = item.CustomerName;
sqlCmd.Parameters.Add("#CreatedDate", SqlDbType.DateTime);
sqlCmd.Parameters["#CreatedDate"].Value = item.CreatedDate;
sqlCmd.Parameters.Add("#ProjectStatus", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectStatus"].Value = item.ProjectStatus;
sqlCmd.Parameters.Add("#ProjectOpenClosed", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOpenClosed"].Value = item.ProjectOpenClosed;
sqlCmd.Parameters.Clear();
sqlCmd.ExecuteNonQuery();
}
idInsertCms.CommandText = "SET IDENTITY_INSERT dbo.ImportedProjects OFF";
idInsertCms.ExecuteNonQuery();
What's wrong with my code?

How about you create a new SqlCommand for each iteration like this:
string query = #"INSERT INTO dbo.ImportedProjects
(
KeyProject,
KeyCompany,
KeyCountry,
KeyCustomer,
KeyEmployeeProjectManager,
KeyEmployeeProjectOwner,
KeyOrganisation,
ProjectNumber,
ProjectName,
ProjectOwnerNumber,
ProjectManagerNumber,
ProjectOwnerName,
ProjectManagerName,
ProjectOwnerInitials,
ProjectManagerInitials,
CustomerNumber,
CustomerName,
CreatedDate,
ProjectStatus,
ProjectOpenClosed
) VALUES (
#KeyProject,
#KeyCompany,
#KeyCountry,
#KeyCustomer,
#KeyEmployeeProjectManager,
#KeyEmployeeProjectOwner,
#KeyOrganisation,
#ProjectNumber,
#ProjectName,
#ProjectOwnerNumber,
#ProjectManagerNumber,
#ProjectOwnerName,
#ProjectManagerName,
#ProjectOwnerInitials,
#ProjectManagerInitials,
#CustomerNumber,
#CustomerName,
#CreatedDate,
#ProjectStatus,
#ProjectOpenClosed
)";
SqlConnection sqlCon = new SqlConnection("Server=localhost;Database=DatabaseName;Trusted_Connection=True;");
SqlCommand idInsertCms = new SqlCommand("SET IDENTITY_INSERT dbo.ImportedProjects ON", sqlCon);
try
{
sqlCon.Open();
idInsertCms.ExecuteNonQuery();
foreach (var item in importedProjects)
{
SqlCommand sqlCmd= new SqlCommand(query, sqlCon);
sqlCmd.Parameters.Add("#KeyProject", SqlDbType.Int);
sqlCmd.Parameters["#KeyProject"].Value = item.KeyProject;
sqlCmd.Parameters.Add("#KeyCompany", SqlDbType.Int);
sqlCmd.Parameters["#KeyCompany"].Value = item.KeyCompany;
sqlCmd.Parameters.Add("#KeyCountry", SqlDbType.Int);
sqlCmd.Parameters["#KeyCountry"].Value = item.KeyCountry;
sqlCmd.Parameters.Add("#KeyCustomer", SqlDbType.Int);
sqlCmd.Parameters["#KeyCustomer"].Value = item.KeyCustomer;
sqlCmd.Parameters.Add("#KeyEmployeeProjectManager", SqlDbType.Int);
sqlCmd.Parameters["#KeyEmployeeProjectManager"].Value = item.KeyEmployeeProjectManager;
sqlCmd.Parameters.Add("#KeyEmployeeProjectOwner", SqlDbType.Int);
sqlCmd.Parameters["#KeyEmployeeProjectOwner"].Value = item.KeyEmployeeProjectOwner;
sqlCmd.Parameters.Add("#KeyOrganisation", SqlDbType.Int);
sqlCmd.Parameters["#KeyOrganisation"].Value = item.KeyOrganisation;
sqlCmd.Parameters.Add("#ProjectNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectNumber"].Value = item.ProjectNumber;
sqlCmd.Parameters.Add("#ProjectName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectName"].Value = item.ProjectName;
sqlCmd.Parameters.Add("#ProjectOwnerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerNumber"].Value = item.ProjectOwnerNumber;
sqlCmd.Parameters.Add("#ProjectManagerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerNumber"].Value = item.ProjectManagerNumber;
sqlCmd.Parameters.Add("#ProjectOwnerName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerName"].Value = item.ProjectOwnerName;
sqlCmd.Parameters.Add("#ProjectManagerName", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerName"].Value = item.ProjectManagerName;
sqlCmd.Parameters.Add("#ProjectOwnerInitials", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOwnerInitials"].Value = item.ProjectOwnerInitials;
sqlCmd.Parameters.Add("#ProjectManagerInitials", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectManagerInitials"].Value = item.ProjectManagerInitials;
sqlCmd.Parameters.Add("#CustomerNumber", SqlDbType.VarChar);
sqlCmd.Parameters["#CustomerNumber"].Value = item.CustomerNumber;
sqlCmd.Parameters.Add("#CustomerName", SqlDbType.VarChar);
sqlCmd.Parameters["#CustomerName"].Value = item.CustomerName;
sqlCmd.Parameters.Add("#CreatedDate", SqlDbType.DateTime);
sqlCmd.Parameters["#CreatedDate"].Value = item.CreatedDate;
sqlCmd.Parameters.Add("#ProjectStatus", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectStatus"].Value = item.ProjectStatus;
sqlCmd.Parameters.Add("#ProjectOpenClosed", SqlDbType.VarChar);
sqlCmd.Parameters["#ProjectOpenClosed"].Value = item.ProjectOpenClosed;
sqlCmd.ExecuteNonQuery();
}
idInsertCms.CommandText = "SET IDENTITY_INSERT dbo.ImportedProjects OFF";
idInsertCms.ExecuteNonQuery();
SqlCommand sqlCmd= new SqlCommand(query, sqlCon);
sqlCmd.Parameters.Add("#KeyProject", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCompany", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCountry", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCustomer", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyEmployeeProjectManager", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyEmployeeProjectOwner", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyOrganisation", SqlDbType.Int);
sqlCmd.Parameters.Add("#ProjectNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerInitials", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerInitials", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CustomerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CustomerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CreatedDate", SqlDbType.DateTime);
sqlCmd.Parameters.Add("#ProjectStatus", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOpenClosed", SqlDbType.VarChar);
foreach (var item in importedProjects)
{
sqlCmd.Parameters["#KeyProject"].Value = item.KeyProject;
sqlCmd.Parameters["#KeyCompany"].Value = item.KeyCompany;
sqlCmd.Parameters["#KeyCountry"].Value = item.KeyCountry;
sqlCmd.Parameters["#KeyCustomer"].Value = item.KeyCustomer;
sqlCmd.Parameters["#KeyEmployeeProjectManager"].Value = item.KeyEmployeeProjectManager;
sqlCmd.Parameters["#KeyEmployeeProjectOwner"].Value = item.KeyEmployeeProjectOwner;
sqlCmd.Parameters["#KeyOrganisation"].Value = item.KeyOrganisation;
sqlCmd.Parameters["#ProjectNumber"].Value = item.ProjectNumber;
sqlCmd.Parameters["#ProjectName"].Value = item.ProjectName;
sqlCmd.Parameters["#ProjectOwnerNumber"].Value = item.ProjectOwnerNumber;
sqlCmd.Parameters["#ProjectManagerNumber"].Value = item.ProjectManagerNumber;
sqlCmd.Parameters["#ProjectOwnerName"].Value = item.ProjectOwnerName;
sqlCmd.Parameters["#ProjectManagerName"].Value = item.ProjectManagerName;
sqlCmd.Parameters["#ProjectOwnerInitials"].Value = item.ProjectOwnerInitials;
sqlCmd.Parameters["#ProjectManagerInitials"].Value = item.ProjectManagerInitials;
sqlCmd.Parameters["#CustomerNumber"].Value = item.CustomerNumber;
sqlCmd.Parameters["#CustomerName"].Value = item.CustomerName;
sqlCmd.Parameters["#CreatedDate"].Value = item.CreatedDate;
sqlCmd.Parameters["#ProjectStatus"].Value = item.ProjectStatus;
sqlCmd.Parameters["#ProjectOpenClosed"].Value = item.ProjectOpenClosed;
sqlCmd.ExecuteNonQuery();
}
or you could recycle sqlCmd and setup the parameters outside the loop and then just set them within the loop:
SqlCommand sqlCmd= new SqlCommand(query, sqlCon);
sqlCmd.Parameters.Add("#KeyProject", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCompany", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCountry", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyCustomer", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyEmployeeProjectManager", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyEmployeeProjectOwner", SqlDbType.Int);
sqlCmd.Parameters.Add("#KeyOrganisation", SqlDbType.Int);
sqlCmd.Parameters.Add("#ProjectNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOwnerInitials", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectManagerInitials", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CustomerNumber", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CustomerName", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#CreatedDate", SqlDbType.DateTime);
sqlCmd.Parameters.Add("#ProjectStatus", SqlDbType.VarChar);
sqlCmd.Parameters.Add("#ProjectOpenClosed", SqlDbType.VarChar);
foreach (var item in importedProjects)
{
sqlCmd.Parameters["#KeyProject"].Value = item.KeyProject;
sqlCmd.Parameters["#KeyCompany"].Value = item.KeyCompany;
sqlCmd.Parameters["#KeyCountry"].Value = item.KeyCountry;
sqlCmd.Parameters["#KeyCustomer"].Value = item.KeyCustomer;
sqlCmd.Parameters["#KeyEmployeeProjectManager"].Value = item.KeyEmployeeProjectManager;
sqlCmd.Parameters["#KeyEmployeeProjectOwner"].Value = item.KeyEmployeeProjectOwner;
sqlCmd.Parameters["#KeyOrganisation"].Value = item.KeyOrganisation;
sqlCmd.Parameters["#ProjectNumber"].Value = item.ProjectNumber;
sqlCmd.Parameters["#ProjectName"].Value = item.ProjectName;
sqlCmd.Parameters["#ProjectOwnerNumber"].Value = item.ProjectOwnerNumber;
sqlCmd.Parameters["#ProjectManagerNumber"].Value = item.ProjectManagerNumber;
sqlCmd.Parameters["#ProjectOwnerName"].Value = item.ProjectOwnerName;
sqlCmd.Parameters["#ProjectManagerName"].Value = item.ProjectManagerName;
sqlCmd.Parameters["#ProjectOwnerInitials"].Value = item.ProjectOwnerInitials;
sqlCmd.Parameters["#ProjectManagerInitials"].Value = item.ProjectManagerInitials;
sqlCmd.Parameters["#CustomerNumber"].Value = item.CustomerNumber;
sqlCmd.Parameters["#CustomerName"].Value = item.CustomerName;
sqlCmd.Parameters["#CreatedDate"].Value = item.CreatedDate;
sqlCmd.Parameters["#ProjectStatus"].Value = item.ProjectStatus;
sqlCmd.Parameters["#ProjectOpenClosed"].Value = item.ProjectOpenClosed;
sqlCmd.ExecuteNonQuery();
}

Instead of inserting in a loop, you can use a different approach, try creating a table and add rows to this table with your values, once you finishing adding your rows to this table, you can send this table as parameter to your stored procedure, in SQL Server create a user-defined table with the same columns as your table created in the loop and use this type as type in the parameter, after this you can do an insert into your table using a select
var newDataRow = medicareBuyInBuyInDataTable.NewRow();
foreach (var value in values) {
newDataRow["FieldName"] = value;
....
....
}
yourDataTable.Rows.Add(newDataRow);
// send your table as parameter
var parameter = new List<KeyValuePair<string, object>>{
new KeyValuePair<string, object>("#yourTableParam", medicareBuyInDataTable)
};
return DbAccess.ExecuteScalar(ConString, StoredProcedureName, parameter);
In SQL Server create a type with the same values in the table you are sending:
-- ================================
-- Create User-defined Table Type
-- ================================
USE <database_name, sysname, AdventureWorks>
GO
-- Create the data type
CREATE TYPE YourTableTypeName AS TABLE
(
<columns_in_primary_key, , c1> <column1_datatype, , int> <column1_nullability,, NOT NULL>,
<column2_name, sysname, c2> <column2_datatype, , char(10)> <column2_nullability,, NULL>,
<column3_name, sysname, c3> <column3_datatype, , datetime> <column3_nullability,, NULL>,
PRIMARY KEY (<columns_in_primary_key, , c1>)
)
GO
Finally, in the stored procedure, use the type you created "YourTableTypeName"
CREATE PROCEDURE [dbo].[YourProcedureName]
#yourTableParam [dbo].[YourTableTypeName] READONLY
AS
BEGIN
INSERT INTO [dbo].[YourTable]
SELECT *
FROM yourTableParam
END

Failed to convert parameter value from a DataRowView to a Int32

I'm inserting records and one of my object is combobox. The combox is connected to the table. When i'm inserting this error appear:
Failed to convert parameter value from a DataRowView to a Int32
My code:
cn.Open();
SqlCommand Insert = new SqlCommand();
Insert.Connection = cn;
Insert.CommandType = CommandType.Text;
Insert.CommandText = "INSERT INTO Ticket VALUES (CustomerID, Date, Store, Amount, NoStub) ";
Insert.Parameters.Add("CustomerID", SqlDbType.Int).Value = cboName.SelectedValue;
Insert.Parameters.Add("Date", SqlDbType.DateTime).Value = dtpDate.Value.Date.ToString();
Insert.Parameters.Add("Store", SqlDbType.NVarChar).Value = txtStore.Text;
Insert.Parameters.Add("Amount", SqlDbType.Decimal).Value = txtAmount.Text;
Insert.Parameters.Add("NoStub", SqlDbType.Decimal).Value = txtStub.Text;
Insert.ExecuteNonQuery();
cn.Close();

Use this sample code:
command.Parameters.Add("#CustomerID", SqlDbType.Int).Value = Convert.ToInt32(storeCode);
or use
int.parse for cboName.

Change your code to the following and let the Server resolve the data type
cn.Open();
SqlCommand sqlCmd = new SqlCommand();
sqlCmd.Connection = cn;
sqlCmd.CommandType = CommandType.Text;
sqlCmd.CommandText = "INSERT INTO Ticket(CustomerID, Date, Store, Amount, NoStub)
VALUES (#CustomerID, #Date, #Store, #Amount, #NoStub) ";
sqlCmd.Parameters.AddWithValue("#CustomerID", cboName.SelectedValue);
sqlCmd.Parameters.AddWithValue("#Date", dtpDate.Value.Date.ToString());
sqlCmd.Parameters.AddWithValue("#Store", txtStore.Text);
sqlCmd.Parameters.AddWithValue("#Amount", txtAmount.Text);
sqlCmd.Parameters.AddWithValue("#NoStub", txtStub.Text);
sqlCmd.ExecuteNonQuery();
cn.Close();

Oracle query generation

I have a text box that is filled with date(date type) from a date picker.
I have a table with 3 columns(name,fromdate(date),todate(date)). On button click activity it should show only those names which have the date specified between the from date and to date.
I would like some help me on this
string v = System.Configuration.ConfigurationManager.ConnectionStrings["harish"].ConnectionString;
con = new OracleConnection(v);
con.Open();
cmd = new OracleCommand("________", con);

You're not even trying. Try Oracle and MSDN for this.
But since you're in a jam....
var cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "INSERT INTO Table (name, fromDate, toDate)VALUES(:nameVal, :fromVal, :toVal)";
cmd.Parameters.Add(new OracleParameter(":fromVal", OracleType.DateTime)).Value = fromDateVal;
cmd.Parameters.Add(new OracleParameter(":toVal", OracleType.DateTime)).Value = toDateVal;
cmd.ExecuteNonQuery();
//close the connection after done.... release the resources

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