Binding search results to data grid
- by Abid
I want to add search functionality to my program. There's a class which has this function:
public DataTable Search()
{
string SQL = "Select * from Customer where " + mField + " like '%" + mValue + "%'";
DataTable dt = new DataTable();
dt = dm.GetData(SQL);
return (dt);
}
There are setter and getter properties for mField and mValue. DM is the object of class DataManagement, which has a method GetData:
public DataTable GetData(string SQL)
{
SqlCommand command = new SqlCommand();
SqlDataAdapter dbAdapter = new SqlDataAdapter();
DataTable DataTable = new DataTable();
command.Connection = clsConnection.GetConnection();
command.CommandText = SQL;
dbAdapter.SelectCommand = command;
dbAdapter.Fill(DataTable);
return (DataTable);
}
The search functionality is currently implemented like this:
private void btnfind_Click(object sender, EventArgs e)
{
//cust is the object of class customer//
if (tbCustName.Text != "")
{
cust.Field="CustName";
cust.Value = tbCustName.Text;
}
else if (tbAddress.Text != "")
{
cust.Value = tbAddress.Text;
cust.Field="Address";
}
else if (tbEmail.Text != "")
{
cust.Value = tbEmail.Text;
cust.Field="Email";
}
else if (tbCell.Text != "")
{
cust.Value = tbCell.Text;
cust.Field = "Cell";
}
DataTable dt = new DataTable();
dt = cust.Search();
dgCustomer.DataSource = dt;
RefreshGrid();
}
private void RefreshGrid()
{
DataTable dt = new DataTable();
dt = cust.GetCustomers();
dgCustomer.DataSource = dt;
}
This is not working. I don't know why. Please help.
