Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Where are you trying to populate the <code>ComboBox</code>? The only interaction I see is here:</p> <pre><code>For i = 0 To dbTable.Rows.Count - 1 ComboBoxCard.ValueMember = "ccNumber" Next </code></pre> <p>Which I'm guessing isn't doing what you think it's doing. For one thing, you're setting <code>ValueMember</code> to the same value multiple times in a loop. Nothing in the statement changes with each iteration of the loop, so why loop it?</p> <p>More specifically, <code>ValueMember</code> isn't actually any kind of displayed value. <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.listcontrol.valuemember.aspx" rel="nofollow">It's used to indicate which field in the bound data should contain the value</a>. This is used when you provide a <code>DataSource</code> for the control, which you're missing.</p> <p>I'll assume the <code>DataSource</code> should be <code>dbTable</code>, so you're probably looking to do something like this:</p> <pre><code>ComboBoxCard.DataSource = dbTable ComboBoxCard.ValueMember = "ccNumber" ComboBoxCard.DisplayMember = "Some Other Field in the database" </code></pre> <p>I don't remember if you need to explicitly call <code>.DataBind()</code> on the control after these statements, but the example I linked to doesn't do it so I'll leave it out.</p> <p>Essentially what you're <em>trying</em> to do in your code is loop through the results and add them to the <code>ComboBox</code>. You don't need to do this. The <code>ComboBox</code> is capable of doing this internally if you just point its <code>DataSource</code> to the set of data being used and tell it which fields it needs to use on that set. This is called <a href="http://msdn.microsoft.com/en-us/library/ms752347.aspx" rel="nofollow">data binding</a>.</p>
    singulars
    1. This table or related slice is empty.
    1. POComboBox Isn't Being Populated with MySQL Query Result - How do I resolve it?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USDavid
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POComboBox Isn't Being Populated with MySQL Query Result - How do I resolve it?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COThanks David, for being kind with your response. I didn't realize that the ComboBox was capable of handeling the looping through the records by itself.
      singulars
      1. PO
      1. USKismet Agbasi
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload