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Create a Combo Box in a form that then updates a data grid view

Ok very new to this.  I am using Visual Studio 2013.  I have 3 tables I am working with from a database the database is called GC_Emp_data, the tables are TrainingCourse, Positions, and then Training_Positions.  The training course has a list of all the courses the positions has all positions, and the last table merges the to together via the ID number.  So a training course could be in multiple positions.  What I wanting to do is Select a Training course via a combo box and then it populate a datagridview that will allow me to see what positions that it's has assigned in the (training_posoition table) and also allow me to add new positions to that table.  Not sure where to start and cannot find the right starting point.
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sharris_glascol
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sharris_glascol
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1 Solution
 
dustockCommented:
You'll need to query your TrainingCourse table to populate your combo box and return a dataset or datatable with the courses.  Then you'll need to provide information for the following to load up the combo box.

            comboBox1.DataSource = //DataSet name or datatablename
            comboBox1.ValueMember = //database column name, probably the course ID
            comboBox1.DisplayMember = //database column name, probably the name of the course

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Once you have the combobox populated you'll want to create an event for the selected index changed (double click the combo on your form) so that when a course selection is made you can have your program query the Training_Positions table based on the valuemember of your course selection.  Then return a dataset or datatable with the results and set the datasource of the datagridview to the name of the dataset or datatable

dataGridView1.DataSource = //dataset or datatable name

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As far as adding new positions, how were you envisioning you would accomplish that task?  Do you have the pieces in place to be able to connect and query your database from your program or do you need help from the ground up?
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sharris_glascolAuthor Commented:
All I want to do is in the datagridview is add positions via a combo box that references the positions table and updates the training/positions table.
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dustockCommented:
Then you'll need to load a combobox with the list of positions and when you select one and click a button, or just select one you can run an insert statement and then query your database again to get the updated view in your datagridview.  

I can help you accomplish any of this, but I need more information on what you need help with.  The more vague you are in your request the more difficult it is for myself and other experts to assist you.  Do you need help with the code, the queries, the logic?  Do you have any code in place that you've tried but need help to debug?
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it_saigeDeveloperCommented:
Using what I have understood to be your requirements.  I threw together this quick example in VS2013.  Let me know if this is what you were after.

-saige-
EE-Q28564627.zip
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