i am getting error on inserting multi items

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C#

string str = string.Empty;
ListItemCollection lst = lstuser1.Items;
foreach (ListItem assigned in lst)
{
   str = assigned.Text +" ,";
}
string query = "insert into UserInformation(new_name) values('" + str + "')";
SqlCommand cmd = new SqlCommand(query,c);
c.Open();
cmd.ExecuteNonQuery();
c.Close();

can anyone please tell me,i want to insert multiple items one time so how it is possible.

Posted 7-Mar-14 8:10am

Member 9425683

Updated 7-Mar-14 8:47am

phil.o

v2

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phil.o 7-Mar-14 14:50pm

You did not specify which database system. With SQL Server CE, for example, multi inserts in one command are not supported at all.

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OriginalGriff · Answer 1 · 2014-03-07T08:17:00

The syntax of a multiple INSERT is not like that! It's:

SQL

INSERT INTO MyTable (MyColumnName) VALUES (FirstValue) (SecondValue) (ThirdValue)

But...it is a very poor idea to do it the way you are: Do not concatenate strings to build a SQL command. It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Use Parametrized queries instead.
In this case, you would be better off using a DataTable to create the bulk insert:

C#

string strConnect = @"Data Source=GRIFFPC\SQLEXPRESS;Initial Catalog=Testing;Integrated Security=True";
using (SqlConnection con = new SqlConnection(strConnect))
    {
    con.Open();
    using (SqlBulkCopy bulk = new SqlBulkCopy(con))
        {
        bulk.DestinationTableName = "MyTable";
        DataTable dt = new DataTable();
        dt.Columns.Add("MyColumnName");
        dt.Rows.Add(FirstValue);
        dt.Rows.Add(SecondValue);
        dt.Rows.Add(ThirdValue);
        bulk.WriteToServer(dt);
        }
    }

You get security and simplicity.

Krunal Rohit · Answer 2 · 2014-03-07T08:14:00

C#

string str = string.Empty;
ListItemCollection lst = lstuser1.Items;
foreach (ListItem assigned in lst)
{
    str = assigned.Text +" ,";
    string query = "insert into UserInformation(new_name) values('" + str + "')";
    SqlCommand cmd = new SqlCommand(query,c);
    c.Open();
    cmd.ExecuteNonQuery();
    c.Close();
}

-KR

sameer8k · Answer 3 · 2014-03-08T03:00:00

Solution 4

if possible check out the topic called openxml in sqlserver.

Posted 8-Mar-14 3:00am

sameer8k

i am getting error on inserting multi items

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