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Input string was not in a correct format.

Mostafa Metwally asked:

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i have a ptoblem here
Input string was not in a correct format.
and i can't solve it

c# code :-

public decimal totalsalary()
           decimal ms, h, b, m, k, t;

           ms = Convert.ToDecimal(txtmainsalary.Text);
           h = Convert.ToDecimal(txthwaf.Text);
           b = Convert.ToDecimal(txtbdlat.Text);
           m = Convert.ToDecimal(txtmok.Text);
           k = Convert.ToDecimal(txtkhasm.Text);
           t = ms + h + b + m - k;
           return t;


public int totsa(decimal total)
    com.Connection = con;
    com.CommandText = "totsal";
    com.CommandType = CommandType.StoredProcedure;
    com.Parameters.AddWithValue("@totalsalary", total);
    ESalary es = new ESalary();

    int r = com.ExecuteNonQuery();
    return r;


private void button1_Click(object sender, EventArgs e)
    empsearchclass esc = new empsearchclass();
    esc.addesalary((int)comboBox1.SelectedValue, Convert.ToDecimal(txtmainsalary.Text), Convert.ToDecimal(txthwaf.Text), Convert.ToDecimal(txtbdlat.Text), Convert.ToDecimal(txtmok.Text), Convert.ToDecimal(txtkhasm.Text));


the error here

Tags: C#, SQL-Server, ADO.NET


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