Error : “Fill: SelectCommand.Connection property has not been initialized.”

Question

im getting this error while trying to connect a mysql database to an editor, here is the code behind:

protected void Button1_Click(object sender, EventArgs e)
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Answer 1

Had this same error and simply just forgot the connection in the SQL string as mentioned above. Just needed to add con after the comma.

Answer 2

Try This

MySqlCommand cmd = new MySqlCommand("SELECT tes FROM ins",conn);

or

MySqlCommand cmd = new MySqlCommand("SELECT tes FROM ins");
cmd.Connection=conn;

Answer 3

I got also this problem. after search the problem found that the object of connection that i have provide SqlDataAdapter is not Initialize so the connection passed as null

Answer 4

Change the line

MySqlCommand cmd = new MySqlCommand("SELECT tes FROM ins");

To

MySqlCommand cmd = new MySqlCommand("SELECT tes FROM ins", conn);

And it should work.

Alternatively assign conn to the cmd.Connection property.

The problem with your code is that you never assign a connection to the command, hence the error saying that the connection is not initialized.