Error converting data type varchar to numeric.

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(when i am trying to run this code it is giving an error near da.Fill(dth) that error converting data type varchar to numeric)

C#

public partial class ministatement : Form
   {
        SqlConnection connect = new SqlConnection(@"data source=ABHINAV-PC\ABHI;integrated security=true;initial catalog=ATM;");

       public ministatement()
       {
           InitializeComponent();
       }

        private void ministatement_Load(object sender, EventArgs e)
        {

             connect.Open();
SqlCommand cmd = new SqlCommand("select * from transactions where account_no='" + label4.Text +"'" , connect);
            DataTable dth = new DataTable();
            SqlDataAdapter da = new SqlDataAdapter(cmd);
            da.Fill(dth);
            dataGridView1.DataSource = dth;
}
}
}

Posted 13-Mar-14 1:08am

Abhinav Chaudhary

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Schatak · Answer 1 · 2014-04-06T21:11:00

Solution 7

You can pass decimal value:

C#

Decimal account_no= 0;
if (label4.Text == "")
{
    account_no= 0;
}
else
{
    account_no = Convert.ToDecimal(label4.Text);
}

and then just pass this "account_no" variable to your query

Posted 6-Apr-14 21:11pm

Schatak

Updated 6-Apr-14 21:24pm

v3

vsrikanth87 · Answer 2 · 2014-03-13T01:10:00

Solution 1

is the account no is varchar or numeric in database

Posted 13-Mar-14 1:10am

vsrikanth87

Comments

Abhinav Chaudhary 13-Mar-14 7:12am

account no is numeric

vsrikanth87 · Answer 3 · 2014-03-13T01:14:00

Solution 2

try this once
connect.Open();
SqlCommand cmd = new SqlCommand("select * from transactions where account_no= " + label4.Text + "", connect);

Posted 13-Mar-14 1:14am

vsrikanth87

Comments

Abhinav Chaudhary 13-Mar-14 7:21am

its giving error as invalid column name label4

vsrikanth87 · Answer 4 · 2014-03-13T01:26:00

Solution 3

try this code: -

connect.Open();
DataTable dt = new DataTable();
SqlDataAdapter da = new SqlDataAdapter("select * from transactions where account_no = '" + label4.Text + "'", connect);
SqlCommandBuilder cmd = new SqlCommandBuilder(da);
da.Fill(dt);
dataGridView1.DataSource = dt;
connect.Close();

Posted 13-Mar-14 1:26am

vsrikanth87

Comments

Abhinav Chaudhary 13-Mar-14 7:31am

sir,still its giving same error of conversion...

vsrikanth87 · Answer 5 · 2014-03-13T01:33:00

Solution 4

through textbox what you are passing in label4 is it a value(1231232) or valuewithtext(3123sdd23d)

Posted 13-Mar-14 1:33am

vsrikanth87

Comments

Abhinav Chaudhary 13-Mar-14 7:34am

it is passing only numbers....not with any word

vsrikanth87 · Answer 6 · 2014-03-13T01:36:00

Solution 5

have to check complete code and database

Posted 13-Mar-14 1:36am

vsrikanth87

Comments

Abhinav Chaudhary 13-Mar-14 7:37am

so can i post it here?

vsrikanth87 13-Mar-14 7:39am

no lets wait for other answers, if also same problem them you can me mail me

Abhinav Chaudhary 13-Mar-14 7:41am

okay sir.Thank You

Member 10017719 · Answer 7 · 2014-04-06T20:38:00

Solution 6

The problem is account number is numeric and label4.Text is String....

C#

string inputString = label4.Text
int numValue;
bool parsed = Int32.TryParse(inputString, out numValue);

if (parsed)
   ... Then ur conditions

Posted 6-Apr-14 20:38pm

Member 10017719