Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Categories

Welcome to the new platform of Programmer's Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use its exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.

select sql server database based on combo box selection

sharoncsharonc Posts: 11Member
Hi,
I have a windows form with a "ComboBox" on it. The "ComboBox" has the words "Production" and "Development" in it. If the user selects "Production", I need my C# code to point to the Production database. If the user selects "Development", I need my C# code to point to the Development database. Can someone please tell me how to do this?

Sorry, I'm still not sure what to do. I am new to C#, so it is confusing. Here is my code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
using System.Data.SqlClient;
using System.Data.SqlTypes;


namespace GEOINT
{
public partial class frmForm : Form
{
public frmForm()
{
InitializeComponent();
}
//Insert using Filestream, file into SQL Server Table
private void btnInsert_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDlg = new OpenFileDialog();
openFileDlg.InitialDirectory = Directory.GetCurrentDirectory();
if (openFileDlg.ShowDialog() == DialogResult.OK)
{
FileInfo fi = new FileInfo(openFileDlg.FileName);
FileStream fs = new FileStream(fi.FullName, FileMode.Open, FileAccess.Read);
BinaryReader rdr = new BinaryReader(fs);
byte[] fileData = rdr.ReadBytes((int)fs.Length);
rdr.Close();
fs.Close();

string cs = @"server=JITC-PCGEOINT;database=DEV_GEOINT;integrated security=SSPI";
using (SqlConnection con = new SqlConnection(cs))
{
con.Open();
string sql = "INSERT INTO Filestream_Files (Row_Guid_Col_ID, fData, fName) VALUES (default, @fData, @fName)";
SqlCommand cmd = new SqlCommand(sql, con);
cmd.Parameters.Add("@fData", SqlDbType.Image, fileData.Length).Value = fileData;
cmd.Parameters.Add("@fName", SqlDbType.NVarChar).Value = fi.Name;
cmd.ExecuteNonQuery();

con.Close();
}
MessageBox.Show(fi.FullName, "Selected Document/Picture Inserted!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnExit_Click(object sender, EventArgs e)
{
this.Close();
}

private void frmForm_Load(object sender, EventArgs e)
{

}
//Load LAST selected file to SQL Server table
private void btnRetrieve_Click(object sender, EventArgs e)
{
string cs = @"server=JITC-PCGEOINT;database=DEV_GEOINT;integrated security=SSPI";
using (SqlConnection con = new SqlConnection(cs))
{

con.Open();
SqlTransaction txn = con.BeginTransaction();
string sql = "SELECT fData.PathName(), GET_FILESTREAM_TRANSACTION_CONTEXT(), fName fID FROM Filestream_Files WHERE fID = (SELECT MAX(fID)FROM Filestream_Files)";
SqlCommand cmd = new SqlCommand(sql, con, txn);
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{

string filePath = rdr[0].ToString();
byte[] objContext = (byte[])rdr[1];
string fName = rdr[2].ToString();

SqlFileStream sfs = new SqlFileStream(filePath, objContext, System.IO.FileAccess.Read);

byte[] buffer = new byte[(int)sfs.Length];
sfs.Read(buffer, 0, buffer.Length);
sfs.Close();

//Files in the table have been written to a directory for viewing.

//string filename = @"C:DevelopmentGeointGeointindebug;
string filename = fName;

System.IO.FileStream fs = new System.IO.FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.Write);
fs.Write(buffer, 0, buffer.Length);
fs.Flush();
fs.Close();

}

rdr.Close();
txn.Commit();
con.Close();
}
}

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{

}

}

}

thanks,
Sharon

Comments

  • sharoncsharonc Posts: 11Member
    this is how I fixed the problem:

    string cs = "";

    if (comboBox1.SelectedIndex == 0)
    {
    cs = @"server=JITC-PCGEOINT;database=Production_GEOINT;integrated security=SSPI";
    }
    else if (comboBox1.SelectedIndex == 1)
    {
    cs = @"server=JITC-PCGEOINT;database=DEV_GEOINT;integrated security=SSPI";
    }


    The button code looks like this:



    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
    }

    Thanks,
    Sharon
Sign In or Register to comment.