code of how i can correct this error (Cannot implicitly convert type 'string' to 'System.DateTime')

Question

1.00/5 (1 vote)

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C#

try
            {
                SqlCommand cmd = new SqlCommand("select * from buy where numero='" + comboBox1.Text + "'", con);
                con.Close();
                con.Open();
                SqlDataReader rdr = cmd.ExecuteReader();
                if (rdr.Read())
                {
                    DateTime date = System.Convert.ToDateTime(dateTimePicker1.Text);   
                    date=rdr[0].ToString();
                    txtPrtNo.Text = rdr[1].ToString();
                    txtCliNo.Text = rdr[2].ToString();
                    txtQty.Text = rdr[3].ToString();
                    txtUprice.Text = rdr[4].ToString();
                    txtTax.Text = rdr[5].ToString();
                    txtTotP.Text = rdr[6].ToString();
                    txtBalnc.Text = rdr[7].ToString();
                    txtAmtpd.Text = rdr[8].ToString();
                    
                }
                con.Close();
            }
            catch (Exception mn)
            {
                MessageBox.Show(mn.Message);
            }

Posted 5-Aug-12 6:53am

Gilbertinino

Updated 5-Aug-12 6:58am

Kenneth Haugland

v2

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Kenneth Haugland 5-Aug-12 13:00pm

Whats wrong with the answers you got here:
http://www.codeproject.com/Questions/434810/my-comboBox-do-not-show-the-date-it-gives-me-this

You should normally not re-post a question. Use the Improve Question instead if you didnt get a good reply :)

2 solutions

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Richard MacCutchan · Answer 1 · 2012-08-05T07:03:00

Solution 1

Java

date=rdr[0].ToString();

this line is wrong, you cannot implicitly convert a string to a DateTime - as the message clearly tells you.

Posted 5-Aug-12 7:03am

Richard MacCutchan

Prabhat *Spark* · Answer 2 · 2012-08-05T07:39:00

Solution 2

In the code u posted u have once set the date variable from some datepicker and in the very next line u are trying to overwrite the date's value with SqlDataReader rdr data. I mean that's a bit useless thing to do. First of all u decide what data u want to store in date variable and then try the following..

C#

Convert.ToDateTime(rdr[0].ToString())

or

C#

DateTime.Parse(rdr[0].ToString());

Posted 5-Aug-12 7:39am

Prabhat Spark

Updated 5-Aug-12 7:45am

v2

Comments

Gilbertinino 5-Aug-12 14:11pm

i replaced the line of code with 'Convert.ToDateTime(rdr[0].ToString())' and when i try to debugg again it gives this error 'String was not recognized as a valid DateTime.'

Prabhat Spark 6-Aug-12 0:51am

That means only one thing that the format of the data at 0 index of the table contains date in an invalid format. Can u copy a sample row and post it here so that I can see what's causing the error.