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POUsing Selected Value in Combo Box in Another Class Results in Error
 

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    <p>I've searched for several hours on how I would manage to do this, but none of the solutions I've found have worked...</p> <p>I have a form with several ComboBoxes, and I'd like to grab the selected values and use it in another class's method. The values will be used as variables in a filter to query a database. When assigning the values though, I got the error "An object reference is required for the non-static field, method, or property". I tried creating a new instance of the form in the other class, but wouldn't the new instance not have the ComboBox values I wanted in the first place?</p> <p>I'm not quite sure on how to do this. I've tried a bunch of ways but they've all failed.=/ I'm new to programming, so I would appreciate any help I can get!</p> <pre><code> public static void LoadMainTable(ref DataTable mainGridTable) { //Loads entires into a data table //FormMonitor FormMonitor = new FormMonitor(); string bankBox = FormMonitor.ComboBox1.SelectedItem; string theDate = FormMonitor.DateTimePicker.Value.ToString("yyyy-MM-dd"); //Grabbed in the order they will be displayed cmd.CommandText = String.Format("W.I.P."); //Add variables for filters after figuring out how to do it reader = cmd.ExecuteReader(); //reads data into dmainGridTable while (reader.Read()) { mainGridTable.Rows.Add(reader["column1"], reader["column2"], reader["column3"], reader["column4"].ToString(), reader["column5"].ToString(), reader["column6"]); //FormMonitor.file_ProgressUpdated(); //non-static error again, fix connect.Close(); } } </code></pre>
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