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How to get multiple string values in return in c# windows forms

i'm trying to get multiple values from database in return, i write a code and it return me only one value but i want all values in return. i didn't know how to solve it because i'm beginner in c#. here is code
string CommandText = "SELECT * FROM SV WHERE [SVCode]=#id";
using (SQLiteCommand cmd = new SQLiteCommand(CommandText, conn))
{
cmd.Parameters.AddWithValue("#id", sve.SVID);
conn.Open();
DataTable dt = new DataTable();
SQLiteDataAdapter da = new SQLiteDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
sve.SVName = dr["SVName"].ToString();
sve.SVCity = dr["SVCity"].ToString();
sve.SVState = dr["SVState"].ToString();
sve.SVEmail = dr["SVEmail"].ToString();
sve.SVWebsite = dr["SVWebsite"].ToString();
sve.SVAddress = dr["SVAddress"].ToString();
sve.SVNote = dr["SVNote"].ToString();
}
return sve.SVName; //how to return SVCity,SVState,SVEmail,SVWebsite,SVAddress,SVNote
}
private string SVCB(){
SVE sve = new SVE();
sve.SVID = MSVD_vendorcode.SelectedItem.ToString();
sve.SVName = MSVD_vendorname.Text;
sve.SVCity = MSVD_vendorcity.Text;
sve.SVState = MSVD_vendorstate.Text;
sve.SVEmail = MSVD_vendoremail.Text;
sve.SVWebsite = MSVD_vendorwebsite.Text;
sve.SVAddress = MSVD_vendoraddress.Text;
sve.SVNote = MSVD_vendornote.Text;
SVSCB sv = new SVSCB();
return sv.SVCBSI(sve);}
private void SVcode_SelectedIndexChanged(object sender, EventArgs e)
{
MSVname.Text = SVCB();
MSVcity.Text = SVCB();
MSVstate.Text = SVCB();
MSVemail.Text = SVCB();
MSVwebsite.Text = SVCB();
MSVaddress.Text = SVCB();
MSVnote.Text = SVCB();
}
this code working but show only one value of SVName in every textbox.
Update!!
public static string SV_CBSI(SVE sve)
{
using (SQLiteConnection conn = new SQLiteConnection(DatabaseConnection.ConnectionString()))
{
string CommandText = "SELECT * FROM SV WHERE [SVCode]=#id";
using (SQLiteCommand cmd = new SQLiteCommand(CommandText, conn))
{
cmd.Parameters.AddWithValue("#id", sve.SVID);
conn.Open();
DataTable dt = new DataTable();
SQLiteDataAdapter da = new SQLiteDataAdapter(cmd);
da.Fill(dt);
foreach (DataRow dr in dt.Rows)
{
sve.SVName = dr["SVName"].ToString();
sve.SVCity = dr["SVCity"].ToString();
sve.SVState = dr["SVState"].ToString();
sve.SVEmail = dr["SVEmail"].ToString();
sve.SVWebsite = dr["SVWebsite"].ToString();
sve.SVAddress = dr["SVAddress"].ToString();
sve.SVNote = dr["SVNote"].ToString();
}
return sve.SVName; //how to return SVCity,SVState,SVEmail,SVWebsite,SVAddress,SVNote
}
}
}
public static string SVCBSI(SVE sve)
{
return SVWCB.SV_CBSI(sve);
}
here is complete code

You need to have a method that return the whole SVE retrieved from database given a particular SVCode.
Notice that I suppose that SVCode is an integer. If not change the input type for this method accordingly
public SVE SV_CBSI(int id)
{
SVE localSve = new SVE();
string CommandText = "SELECT * FROM SV WHERE [SVCode]=#id";
using (SQLiteCommand cmd = new SQLiteCommand(CommandText, conn))
{
cmd.Parameters.AddWithValue("#id", id);
conn.Open();
DataTable dt = new DataTable();
SQLiteDataAdapter da = new SQLiteDataAdapter(cmd);
da.Fill(dt);
if(dt.Rows.Count > 0)
{
localSve.SVName = dr["SVName"].ToString();
localSve.SVCity = dr["SVCity"].ToString();
localSve.SVState = dr["SVState"].ToString();
localSve.SVEmail = dr["SVEmail"].ToString();
localSve.SVWebsite = dr["SVWebsite"].ToString();
localSve.SVAddress = dr["SVAddress"].ToString();
localSve.SVNote = dr["SVNote"].ToString();
}
return localSve;
}
}
Now you can call this method and get back the reference to an SVE instance filled with your data.
private void SVcode_SelectedIndexChanged(object sender, EventArgs e)
{
SVE currentSVE = SV_CBSI(Convert.ToInt32(SVCode.SelectedItem))
MSVname.Text = currentSVE.SVName;
MSVcity.Text = currentSVE.SVCity;
MSVstate.Text = currentSVE.State;
MSVemail.Text = currentSVE.SVEmail;
MSVwebsite.Text = currentSVE.SVWebsite;
MSVaddress.Text = currentSVE.SVAddress;
MSVnote.Text = currentSVE.SVNote;
}

May be you need to return an array (or a List) of strings?

Send JSON through ActiveMQ

I'm trying to send a JSON format through ActiveMQ (C# Console Application), but right now I'm stock in the following:
If I send the direct JSON serialization (as string) the system adds backward slashes "\" to the text, which makes my listener unable to process the information.
I can remove the backward slashes by doing a JToken Parse, but I cannot send the var on ActiveMQ (ITextMessage requests a String, I'm sending a JToken) and of course if I do cast of the JToken to string I found again the backward slashes "\"
Any clue on how I can achieve my goal???
String IP = "172.29.75.43:61616";
String QueuesNameESF = "queue://MES2WMSTVOFFLINE";
try
{
Uri _uri = new Uri(String.Concat("activemq:tcp://" + IP));
IConnectionFactory factory = new ConnectionFactory(_uri);
using (IConnection conn = factory.CreateConnection())
{
using (ISession session = conn.CreateSession())
{
IDestination destination = SessionUtil.GetDestination(session, QueuesNameESF);
using (IMessageProducer producer = session.CreateProducer(destination))
{
SqlConnection dbConnection = new SqlConnection("Integrated Security=false;Data Source=smxsql08svr01;initial catalog=BSS;user id=sa;password=newshamu;Max Pool Size=75000");
SqlConnection internalConnection = new SqlConnection("Integrated Security=false;Data Source=smxsql08svr01;initial catalog=BSS;user id=sa;password=newshamu;Max Pool Size=75000");
String SearchPallet;
SqlCommand cmd = new SqlCommand();
dbConnection.Open();
SearchPallet = "";
SearchPallet = "Select Replace(Replace(Replace((Convert(varchar,GETDATE(),120) + Palletnum),'-',''),' ',''),':','') as 'ID', ";
SearchPallet += "'Y' as 'beFull','ZJ' as 'ext1','' as 'ext2','Y'as 'isCM',Part_Number as 'itemCode',linea as 'line',";
SearchPallet += "Case When len(Part_Number) = 12 then RIGHT(Part_Number,7) else RIGHT(Part_Number,8) end as 'lot',";
SearchPallet += "Palletnum as 'mainPallet',GETDATE() as 'sendTime','BSS' as'sender','8170' as'werks' From Finishgoods ";
//Remove if not test
SearchPallet += "Where PalletNum = #Palletnum GROUP by PalletNum,Part_Number,linea";
cmd.CommandText = SearchPallet;
cmd.Connection = dbConnection;
cmd.Parameters.Add("#Palletnum", SqlDbType.VarChar).Value = "PT01929734";//Pallet;//"PT01929734";
SqlDataReader rdr = cmd.ExecuteReader();
FirstLevel product = new FirstLevel();
if (rdr.Read())
{
//FirstLevel product = new FirstLevel();
product.guid = rdr.GetValue(0).ToString();
product.beFull = rdr.GetValue(1).ToString();
SecondLevel msg = new SecondLevel();
msg.carton = rdr.GetValue(8).ToString();
List<ThirdLevel> serials = new List<ThirdLevel>();
ThirdLevel sn = new ThirdLevel();
String SearchSN = "Select barcodenum as 'serNo',''as 'ext1',''as 'ext2' From Finishgoods where palletnum = #palletnum";
SqlCommand cmd_sn = new SqlCommand();
internalConnection.Open();
cmd_sn.Connection = internalConnection;
cmd_sn.CommandText = SearchSN;
cmd_sn.Parameters.Add("#Palletnum", SqlDbType.VarChar).Value = "PT01929734";
SqlDataReader rdr_sn = cmd_sn.ExecuteReader();
while (rdr_sn.Read())
{
sn.serNo = rdr_sn.GetValue(0).ToString();
sn.ext1 = rdr_sn.GetValue(1).ToString();
sn.ext2 = rdr_sn.GetValue(2).ToString();
serials.Add(sn);
}
rdr_sn.Close();
cmd_sn.Parameters.Clear();
cmd_sn.Dispose();
internalConnection.Close();
msg.serNoMsg = serials;
product.crtonMsg = msg;
product.ext1 = rdr.GetValue(2).ToString();
product.ext2 = rdr.GetValue(3).ToString();
product.isCM = rdr.GetValue(4).ToString();
product.itemCode = rdr.GetValue(5).ToString();
product.line = rdr.GetValue(6).ToString();
product.lot = rdr.GetValue(7).ToString();
product.mainPallet = rdr.GetValue(8).ToString();
product.sendTime = rdr.GetValue(9).ToString();
product.sender = rdr.GetValue(10).ToString();
product.werks = rdr.GetValue(11).ToString();
}
rdr.Close();
string json_ = JsonConvert.SerializeObject(product);
var json = JToken.Parse(json_);
conn.Start();
ITextMessage request = session.CreateTextMessage(json); //Here I need to send the JSON
producer.Send(request);
}
Console.WriteLine("send succeed");
Console.ReadLine();
}
}
}
catch (Exception ex)
{
Console.WriteLine("Receive Failed");
Console.ReadLine();
}

how to keep appending the list of values of a column until we get a new value in another column?

I am trying to keep appending a list of values to lookaheadRunInfo.gerrits until I get a new lookaheadRunInfo.ECJobLink in the while loop,I tried to create a variable “ECJoblink_previous” to capture the previous ECJoblink and create a new list only when they are different and keep appending until ECJoblink_previous changes,I tried as below but its not working,what am I missing?
try
{
Console.WriteLine("Connecting to MySQL...");
conn.Open();
string sql = #"some query";
var ECJoblink_previous ="";
MySqlCommand cmd = new MySqlCommand(sql, conn);
MySqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
//Console.WriteLine(rdr[0] + " -- " + rdr[1]);
//Console.ReadLine();
lookaheadRunInfo.ECJobLink = rdr.GetString(0);
if (ECJoblink_previous == lookaheadRunInfo.ECJobLink)
{
//Keep appending the list of gerrits until we get a new lookaheadRunInfo.ECJobLink
var gerritList = new List<String>();
lookaheadRunInfo.gerrits = gerritList.Add(rdr.GetString(2));
}
ECJoblink_previous = lookaheadRunInfo.ECJobLink;
lookaheadRunInfo.UserSubmitted = rdr.GetString(2);
lookaheadRunInfo.SubmittedTime = rdr.GetString(3).ToString();
lookaheadRunInfo.RunStatus = "null";
lookaheadRunInfo.ElapsedTime = (DateTime.UtcNow - rdr.GetDateTime(3)).ToString();
lookaheadRunsInfo.Add(lookaheadRunInfo);
}
rdr.Close();
}

var lookaheadRunsInfo = new List<LookaheadRunInfo>();
LookAheadRunInfo lookaheadRunInfo;
var i = 0;
var ecJoblink_previous = string.Empty;
while (rdr.Read())
{
if (rdr.GetString(0) != ecJoblink_previous)
{
ecJoblink_previous = rdr.GetString(0);
if (i > 0)
{
lookaheadRunsInfo.Add(lookaheadRunInfo);
}
// Create a new lookaheadRunInfo
lookaheadRunInfo = new lookaheadRunInfo
{
ECJobLink = rdr.GetString(0),
UserSubmitted = rdr.GetString(2),
SubmittedTime = rdr.GetString(3).ToString(),
RunStatus = "null",
ElapsedTime = (DateTime.UtcNow - rdr.GetDateTime(3)).ToString(),
gerrits = new List<string>
{
rdr.GetString(2)
}
};
}
else
{
//Keep appending the list of gerrits until we get a new lookaheadRunInfo.ECJobLink
lookaheadRunInfo.gerrits.Add(rdr.GetString(2));
}
}

Error message for data duplication in asp.net

I have tried this below code, but it throws a unique key constraint error. I would like it as a pop-up message; see my below code.
using (SqlConnection con2 = new SqlConnection(ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString))
{
var fromdate = DateTime.Parse(txtfromdate.Text);
var todate = DateTime.Parse(txttodate.Text);
var datedif1 = (todate - fromdate).Days;
var sqlInsert = new SqlCommand("INSERT INTO datelist ([datedif],[batch],[daywk],[semester],[weekbatch],[subject],[facultyname],[facultyid],[WeekMonth]) VALUES (#datedif,#batch,#daywk,#semester,#weekbatch,#subject,#facultyname,#facultyid,#weekMonth)", con2);
var sqlParamater = sqlInsert.Parameters.Add("#datedif", SqlDbType.Date);
var sqlParameter1 = sqlInsert.Parameters.Add("#batch", SqlDbType.NVarChar);
var sqlParameter2 = sqlInsert.Parameters.Add("#daywk", SqlDbType.NVarChar);
var sqlParameter3 = sqlInsert.Parameters.Add("#semester", SqlDbType.NVarChar);
var sqlParameter4 = sqlInsert.Parameters.Add("#weekbatch", SqlDbType.NVarChar);
var sqlParameter5 = sqlInsert.Parameters.Add("#subject", SqlDbType.NVarChar);
var sqlParameter6 = sqlInsert.Parameters.Add("#facultyname", SqlDbType.NVarChar);
var sqlParameter7 = sqlInsert.Parameters.Add("#facultyid", SqlDbType.NVarChar);
var sqlParameter8 = sqlInsert.Parameters.Add("#WeekMonth", SqlDbType.NVarChar);
con2.Open();
try
{
for (var i = 0; i <= datedif1; i++)
{
var consecutiveDate = fromdate.AddDays(i);
sqlParamater.Value = consecutiveDate;
sqlParameter1.Value = batch1;
sqlParameter2.Value = dayweek;
sqlParameter3.Value = semester;
sqlParameter4.Value = weekbatch;
sqlParameter5.Value = subject;
sqlParameter6.Value = faculty;
sqlParameter7.Value = facultyid;
sqlParameter8.Value = weekmonth;
int s = sqlInsert.ExecuteNonQuery();
}
con2.Close();
}
catch(ConstraintException ex)
{
throw new ApplicationException("data are duplicated");
}
}
Here's a screen shot of the error which am getting,

You are catching a ConstraintException, but the insert is throwing a SqlException which is not a subclass of ConstraintException. Change the catch and you will get it handled.

SQL Server CE reader problem, it doesn't want to read!

another sql problem of mine ..
this time the reader doesn't work properly ( I think so )
I use this code and I get only 1 record added and my db has 100`s of records ..
public void addPosts()
{
string dbfile = new System.IO.FileInfo(System.Reflection.Assembly.GetExecutingAssembly().Location).DirectoryName + "\\msgdb.sdf";
string sql;
PictureBox avaBox = new PictureBox();
PictureBox pictureBox1 = new PictureBox();
Button atBtn = new Button();
RichTextBox msgBox = new RichTextBox();
Panel panelz = new Panel();
DateTime dt = DateTime.Now;
SqlCeConnection connection = new SqlCeConnection("datasource=" + dbfile);
// Read all rows from the table test_table into a dataset (note, the adapter automatically opens the connection)
SqlCeDataAdapter adapter = new SqlCeDataAdapter("select * from posts", connection);
DataSet data = new DataSet();
adapter.Fill(data);
SqlCeCommand cmd = new SqlCeCommand();
cmd.Connection = connection;
sql = "Select user_from,msg,avatar FROM posts";
cmd.CommandText = sql;
connection.Open();
SqlCeDataReader reader = cmd.ExecuteReader();
int i = 0;
while (reader.Read())
{
i++;
string ava = reader.GetString(2);
string usrFrom = reader.GetString(0);
string messige = reader.GetString(1);
//
// groupBox1
//
panelz.Controls.Add(pictureBox1);
panelz.Controls.Add(atBtn);
panelz.Controls.Add(avaBox);
panelz.Controls.Add(msgBox);
panelz.Location = new System.Drawing.Point(0, 335);
panelz.Name = "panel"+ i;
panelz.Size = new System.Drawing.Size(335, 90);
panelz.TabIndex = 0;
panelz.TabStop = false;
//
// pictureBox1
//
pictureBox1.Dock = System.Windows.Forms.DockStyle.Right;
pictureBox1.Image = global::m23.Properties.Resources.post_area;
pictureBox1.Location = new System.Drawing.Point(58, 0);
pictureBox1.Name = "pictureBox1"+i;
pictureBox1.Size = new System.Drawing.Size(281, 99);
pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
pictureBox1.TabIndex = 1;
pictureBox1.TabStop = false;
//
// atBtn
//
atBtn.AutoSize = true;
atBtn.BackgroundImage = global::m23.Properties.Resources.post_user;
atBtn.BackgroundImageLayout = System.Windows.Forms.ImageLayout.None;
atBtn.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
atBtn.Location = new System.Drawing.Point(0, 62);
atBtn.Name = "atBtn"+i;
atBtn.Size = new System.Drawing.Size(28, 25);
atBtn.TabIndex = 2;
atBtn.UseVisualStyleBackColor = true;
//
avaBox.Location = new System.Drawing.Point(0, 0);
avaBox.Name = "avaBox"+i;
avaBox.Size = new System.Drawing.Size(53, 53);
avaBox.TabIndex = 4;
avaBox.TabStop = false;
avaBox.ImageLocation = "http://img.edno23.com/avatars/thumbs/" + ava;
//
msgBox.BorderStyle = System.Windows.Forms.BorderStyle.None;
msgBox.Location = new System.Drawing.Point(76, 10);
msgBox.Name = "msgBox"+i;
msgBox.ReadOnly = true;
msgBox.BackColor = Color.White;
msgBox.ScrollBars = System.Windows.Forms.RichTextBoxScrollBars.None;
msgBox.Size = new System.Drawing.Size(251, 68);
msgBox.TabIndex = 3;
msgBox.Text = messige;
msgBox.BringToFront();
//
CommonFlowPanel.Controls.Add(panelz);
}
connection.Close();
}
Thanks for the help in advance!

Put the declarations for the Panel and all the controls that go onto each panel inside your while loop. You're basically re-adding your once instance of Panel ("panelz") over and over again. What you want to do is create a new panel for each row, inside your while loop, along with new instances of each control that sits on the panel.