how to save imported data from excel in datagridview to database in C# I have saved records and exported to excel sheet, it exported along with data ID, now I have re-imported back to datagridview from excel. now I want to save data to database.
Important to know:
Database name "Records.sdf" using SQL Compact 3.5 DataGridViewName is RecordsDataGridView.
I'm using following code but it's not working.
public void SaveData()
{
// Save the data.
SqlCeConnection conn =
new SqlCeConnection(
@"Data Source=|DataDirectory|\Records.sdf;Persist Security Info=False");
SqlCeCommand com;
string str;
conn.Open();
for (int index = 0; index < RecordsDataGridView.Rows.Count - 1; index++)
{
str = @"Insert Into OutgoingChequeRecords(ID,BankName,Date,AccountNo, Chequebook, ChequeNo, Payee, Amount, Remarks) Values(" + RecordsDataGridView.Rows[index].Cells[0].Value.ToString() + ", '" + RecordsDataGridView.Rows[index].Cells[1].Value.ToString() + "'," + RecordsDataGridView.Rows[index].Cells[2].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[3].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[4].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[5].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[6].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[7].Value.ToString() + "," + RecordsDataGridView.Rows[index].Cells[8].Value.ToString() + ")";
com = new SqlCeCommand(str, conn);
com.ExecuteNonQuery();
}
conn.Close();
}
ERROR RECEIVING Column Name not Valid, column name = Cash
You should pass varchar field enclosed with single quote.
var str = @"Insert Into OutgoingChequeRecords(ID,BankName,Date,AccountNo, Chequebook, ChequeNo, Payee, Amount, Remarks) Values("
+ RecordsDataGridView.Rows[index].Cells[0].Value.ToString() + ", '"
+ RecordsDataGridView.Rows[index].Cells[1].Value.ToString() + "',"
+ RecordsDataGridView.Rows[index].Cells[2].Value.ToString() + ","
+ RecordsDataGridView.Rows[index].Cells[3].Value.ToString() + ","
+ RecordsDataGridView.Rows[index].Cells[4].Value.ToString() + ","
+ RecordsDataGridView.Rows[index].Cells[5].Value.ToString() + ","
+ "'" + RecordsDataGridView.Rows[index].Cells[6].Value.ToString() + "'" + ","
+ RecordsDataGridView.Rows[index].Cells[7].Value.ToString() + ","
+ "'" + dataGridView1.Rows[index].Cells[8].Value.ToString() + "'" + ")";
试试这个查询字符串
str = @"Insert Into OutgoingChequeRecords(ID,BankName,Date,AccountNo, Chequebook, ChequeNo, Payee, Amount, Remarks) Values(" + RecordsDataGridView.Rows[index].Cells[0].Value.ToString() + ",'"+ RecordsDataGridView.Rows[index].Cells[1].Value.ToString() + "'," + RecordsDataGridView.Rows[index].Cells[2].Value.ToString() + ",'" + RecordsDataGridView.Rows[index].Cells[3].Value.ToString() + "','" + RecordsDataGridView.Rows[index].Cells[4].Value.ToString() + "','" + RecordsDataGridView.Rows[index].Cells[5].Value.ToString() + "','" + RecordsDataGridView.Rows[index].Cells[6].Value.ToString() + "','" + RecordsDataGridView.Rows[index].Cells[7].Value.ToString() + "','" + RecordsDataGridView.Rows[index].Cells[8].Value.ToString() + "')";
There are a few ways to do this.
Here is one method.
private void save_btn_Click(object sender, EventArgs e)
{
sAdapter.Update(sTable);
dataGridView1.ReadOnly = true;
save_btn.Enabled = false;
new_btn.Enabled = true;
delete_btn.Enabled = true;
}
http://csharp.net-informations.com/datagridview/csharp-datagridview-database-operations.htm
You can do this as well.
string StrQuery;
try
{
using (SqlConnection conn = new SqlConnection(ConnString))
{
using (SqlCommand comm = new SqlCommand())
{
comm.Connection = conn;
conn.Open();
for(int i=0; i< dataGridView1.Rows.Count;i++)
{
StrQuery= @"INSERT INTO tableName VALUES ("
+ dataGridView1.Rows[i].Cells["ColumnName"].Text+", "
+ dataGridView1.Rows[i].Cells["ColumnName"].Text+");";
comm.CommandText = StrQuery;
comm.ExecuteNonQuery();
}
}
}
}
Something like this will work too.
private void buttonSave_Click_1(object sender, EventArgs e) // save to invoice
{
SqlConnection con = new SqlConnection(MyConnectionString);
string SqlCmdText = "INSERT INTO invoice (p_code, p_name, p_category, p_price) " +
VALUES (@code, @name, @category, @price)";
SqlCommand sc = new SqlCommand(SqlCmdText, con);
con.Open();
foreach (DataRow row in MyTable.Rows)
{
sc.Parameters.Clear();
sc.Parameters.AddWithValue("@code", row["p_code"]);
sc.Parameters.AddWithValue("@name", row["p_name"]);
sc.Parameters.AddWithValue("@category", row["p_category"]);
sc.Parameters.AddWithValue("@price", row["p_price"]);
sc.ExecuteNonQuery();
}
con.Close();
}
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