Displaying Text from Combobox Selections C#

Question

I am trying to create a simple Windows Form App in VS 2013 using C#. The form has 2 combo boxes with some strings to select from. I am trying to display results in 2 text boxes based upon those selections, but when I run the program the results do not display. I placed the code in the method for selecting values from the combo boxes. Here is what I have:

private void SiteList_SelectedValueChanged(object sender, EventArgs e)
{
    string SiteSelect = SiteList.SelectedValue.ToString();
    string DateSelect = dateList.SelectedValue.ToString();


   if (SiteSelect == "Alaska"  &&  DateSelect = "January 2014")
   {
       actualResults.Text = "$391,015.92";
       estimateResults.Text = "No Estimate Available";
   } 
}

If you put a breakpoint on your `if` line and debug, what are the values of SiteSelect and DateSelect? — Dutts, Jul 06 '15 at 15:20

score 0 · Answer 1 · edited Jul 06 '15 at 20:18

0

try this instead :

string SiteSelect = SiteList.SelectedItem.ToString();
string DateSelect = dateList.SelectedItem.ToString();

SelectedItem is the way to select the object in the comboBox. Value will select only the display string (I don't know why but it doesn't work all the time). I always use SelectedItem with toString() to get the object as string

edited Jul 06 '15 at 20:18

qwerty_so

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answered Jul 06 '15 at 15:21

mlaribi

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Ok. And what is the difference to the code of the OP? – qwerty_so Jul 06 '15 at 18:17
SelectedItem is the way to select the object in the comboBox. Value will select only the display string (I don't know why but it doesn't work all the time). I always use SelectedItem with toString() to get the object as string – mlaribi Jul 06 '15 at 19:04
You should have written that short info along with your answer. Pls. remember this for the next time. – qwerty_so Jul 06 '15 at 20:17
Yeah sorry about that – mlaribi Jul 07 '15 at 19:15
No problem. As you see, you got an up-vote for it :-) – qwerty_so Jul 07 '15 at 19:55

score 0 · Answer 2 · answered Jul 06 '15 at 15:25

0

Use this SelectedItem instead of SelectedValue

like this

string Site = SiteList.SelectedItem.ToString();
string Date = dateList.SelectedItem.ToString();

answered Jul 06 '15 at 15:25

alireza amini

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score 0 · Answer 3 · edited May 23 '17 at 11:43

You are subscribed to the SelectedValueChanged event.
This event will be fired only when items was added by setting DataSource property

Me.ComboBox.DataSource = yourListOfItems;

If items was added manually (as I assume)

Me.ComboBox.Items.Add(yourNextItem);

Then you need to subscribe to the SelectionChangesCommitted event And as other answers said use SelectedItem for getting selected value

Because SelectedValue, in the case when items added manually, will return null

Check this: ComboBox SelectedItem vs SelectedValue

Displaying Text from Combobox Selections C#

3 Answers3