im trying to call a mysql stored procedure from my c# application , the procedure has 3 parameters which im passing dynamically, the problem is im not error nor the output, just im getting empty datatable
MySqlConnection con = new MySqlConnection(myConnectionString);
con.Open();
MySqlCommand cmd = new MySqlCommand("User_details", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("username", "aditya");
cmd.Parameters.AddWithValue("password", "123");
cmd.Parameters.AddWithValue("gender", "male");
MySqlDataAdapter da= new MySqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
dataGridView2.DataSource = dt;
I think this example will help you
protected DataTable RetrieveEmployeeSubInfo(string employeeNo)
{
SqlCommand cmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
DataTable dt = new DataTable();
try
{
cmd = new SqlCommand("RETRIEVE_EMPLOYEE", pl.ConnOpen());
cmd.Parameters.Add(new SqlParameter("#EMPLOYEENO", employeeNo));
cmd.CommandType = CommandType.StoredProcedure;
da.SelectCommand = cmd;
da.Fill(dt);
dataGridView1.DataSource = dt;
}
catch (Exception x)
{
MessageBox.Show(x.GetBaseException().ToString(), "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
cmd.Dispose();
pl.MySQLConn.Close();
}
return dt;
}
or visit this page with the same information http://www.java2s.com/Code/CSharp/Database-ADO.net/ModifyDataTableinsertdatatodatabasetable.htm
try this code
DataTable dt = new DataTable();
MySqlConnection connection = new MySqlConnection(MyConString);
MySqlDataAdapter da =new MySqlDataAdapter(nom_fonction,connection);
da.SelectCommand.CommandType = CommandType.StoredProcedure;
da.SelectCommand.Parameters.Add("id", MySqlDbType.Int64).Value = id;
da.Fill(dt);
connection.Close();
Related
We encountered an error while trying to connect. Here is my code :
public void BindData()
{
MySqlConnection con = new MySqlConnection("server=localhost;user id=root;database=abc");
con.Open();
MySqlCommand cmd = new MySqlCommand("Select * from register", con);
MySqlDataAdapter adp = new MySqlDataAdapter(cmd);
DataSet ds = new DataSet();
adp.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
cmd.Dispose();
con.Close();
}
But it gives following error :
You should check if the reference Renci.SshNet is existing in your Projects's references. If none, find the .dll file then add it respectively.
Regards,
Hack Dawg
My Question is can I pass the string to MySqlConnection this way??
The Error is in this Line below in the code "MySqlConnection conn = new MySqlConnection(myconnstr);"
It worked for SQLConnection but not for MySqlConnection ... is it not possibl?
kindly help me With the right solution
thanks!
string myconnstr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
//Selecting Data from databse
public DataTable Select()
{
MySqlConnection conn = new MySqlConnection(myconnstr);
DataTable dt = new DataTable();
try
{
string sql = "SELECT * FROM Member";
MySqlCommand cmd = new MySqlCommand(sql, conn);
MySqlDataAdapter adapter = new MySqlDataAdapter(cmd);
conn.Open();
adapter.Fill(dt);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
conn.Close();
}
return dt;
}
I`m new in VB.net and i need to create common function to retrieve data row. I tried this way. But this is not successful.
Function GetRecord(ByVal sql As String) As DataRow
Dim conn As MySqlConnection = connect()
Dim objDataSet As New DataSet
Dim dt As DataTable
Dim dr As DataRow
Try
Dim cmd As New MySqlCommand()
conn.Open()
cmd.Connection = conn
cmd.CommandText = sql
Dim da As New MySqlDataAdapter
da.SelectCommand = cmd
Dim ds As New DataSet
da.Fill(ds, "T")
dt = ds.Tables("T")
dr = dt.Rows.Item(0)
Catch e As Exception
Throw e
Finally
conn.Close()
End Try
GetRecord = dr
End Function
remark: Connect() function returns mysql connection object
Not exactly sure what are you trying to do but change your code to be like
da.Fill(dt, "T")
Catch e As Exception
Throw e
Finally
conn.Close()
End Try
GetRecord = dt.Rows.Item(0)
I'm trying to fill my list on Visual Studio side with help of stored procedure.
I'm using the following stored procedure:
CREATE PROCEDURE [dbo].[GetColletcion]
AS
BEGIN
select CollectionType.Name ,GlassesCollection.Name
from GlassesCollection
inner join CollectionType
on GlassesCollection.CollectionType=CollectionType.CollTypeID
END
Here's the code-behind:
protected void Button1_Click(object sender, EventArgs e)
{
List<GlassesCollection> list = new List<GlassesCollection>();
using (SqlConnection conn = new SqlConnection("Server=(local);DataBase=ISeeOptic;Integrated Security=SSPI"))
{
GlassesCollection gln = new GlassesCollection();
SqlCommand cmd = new SqlCommand();
SqlDataReader reader;
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "GetColletcion";
conn.Open();
reader = cmd.ExecuteReader();
while (reader.Read())
{
gln.Name = (string)reader["CollectionType.Name"];
gln.CollectionType = (string)reader["GlassesCollection.Name"];
list.Add(gln);
}
reader.Close();
conn.Close();
}
}
But when it comes to this row:
gln.Name = (string)reader["CollectionType.Name"];
I get this Exception:
Exception Details: System.IndexOutOfRangeException: CollectionType.Name
The index outside of the range, although in database more than one record.
How can I solve my problem?
It would be best to use column aliases and refer to the columns by those instead.
CREATE PROCEDURE [dbo].[GetColletcion]
AS
BEGIN
select CollectionType.Name As TypeName ,GlassesCollection.Name As GlassesName
from GlassesCollection
inner join CollectionType
on GlassesCollection.CollectionType=CollectionType.CollTypeID
END
Then use
(string)reader["TypeName"];
(string)reader["GlassesName"];
If you cannot change your stored procedure, then you can use the oridinal position:
(string)reader[0]; //CollectionType.Name
(string)reader[1]; //GlassesCollection.Name
I corrected your typo, too. (GetCollection)
CREATE PROCEDURE [dbo].[GetCollection]
AS
BEGIN
select CollectionType.Name AS CollectionType_Name, GlassesCollection.Name AS GlassesCollection_Name
from GlassesCollection
inner join CollectionType
on GlassesCollection.CollectionType=CollectionType.CollTypeID
END
Code behind:
protected void Button1_Click(object sender, EventArgs e)
{
List<GlassesCollection> list = new List<GlassesCollection>();
using (SqlConnection conn = new SqlConnection("Server=(local);DataBase=ISeeOptic;Integrated Security=SSPI"))
{
GlassesCollection gln = new GlassesCollection();
SqlCommand cmd = new SqlCommand();
SqlDataReader reader;
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "GetCollection";
conn.Open();
reader = cmd.ExecuteReader();
while (reader.Read())
{
gln.Name = (string)reader["GlassesCollection_Name"];
gln.CollectionType = (string)reader["CollectionType_Name"];
list.Add(gln);
}
reader.Close();
conn.Close();
}
}
public string getLabel(int ReportID, int labelID)
{
string s;
System.Data.SqlClient.SqlConnection myConnection = new System.Data.SqlClient.SqlConnection("Data Source=*****;Persist Security Info=True;Password=****;User ID=*********;Initial Catalog=iLoyaltyDW");
SqlCommand myCommand = new SqlCommand();
myCommand.Connection = myConnection;
myCommand.CommandType = CommandType.Text;
myCommand.CommandText = "select ....";
myConnection.Open();
SqlDataReader reader = myCommand.ExecuteReader();
while (reader.Read())
{
s = reader.GetString(0);
}
return s;
}
Yo need to add a reference to the assembly from the report properties U/I
Take a look here for steps and caveats:
http://msdn.microsoft.com/en-us/library/ms155974.aspx