Cannot implicitly convert type 'int' to 'string'

Question

My code:

public void FillMaxBankCode()
{
    try
    {
        DataSet ds = new DataSet();
        ds = bol.SelectMaxBankCode();
        string j = ds.Tables[0].         


        

Answer 1

int.Parse(..) is for converting a string containing digits into an integer. You are trying to perform the function int.Parse(..) on a string but then assign it to another string. That won't work because int.Parse(..) returns and integer. Read here about Int32.Parse (String) method.

Answer 2

txtbankid.Text property type is a string. Don't use int.parse. There is no need to. Just do: txtbankid.Text = j;

Answer 3

public void FillMaxBankCode()
        {
            try
            {
                DataSet ds = new DataSet();
                ds = bol.SelectMaxBankCode();
                string j = ds.Tables[0].Rows[0].ToString();
                txtbankid.Text = j;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

Answer 4

If you want to ensure that the value is an integer before assigning it I suggest you use TryParse

// check if the table and row exists
if (ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
{
    string j = ds.Tables[0].Rows[0].ToString();
    int value = 0;
    if (int.TryParse(j, out value))
        txtbankid.Text = value.ToString();
}