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invalid attempt to access a field before calling read() c#

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Windows Forms

invalid attempt to access a field before calling read() c#

Bharathi Raja

Bharathi Raja

8yAsked Dec 1, 2017, 12:23 AM2.7kWindows Forms

connection.Close();

connection.Open();

cmd = new MySqlCommand("select attend from credit_purchase where date='" + date + "'", connection);

dread = cmd.ExecuteReader();

while (dread.Read())

{

x = dread.GetValue(0).ToString();//this line to error

}

dread.close();

connection.close();

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Bharathi Raja8y ago
remove the line and this error not clear
Ramesh Palanivel8y ago
Hi Bharathi Raja,

Please remove the below line in your code and try again.

connection.Close();
connection.Open();
cmd = new MySqlCommand("select attend from credit_purchase where date='" + date + "'", connection);
dread = cmd.ExecuteReader();
while (dread.Read())
{
x = dread.GetValue(0).ToString();//this line to error
}
dread.close(); //Remove this line and try again
connection.close();