CODEWITHSUNDEEP
c#wpfentity-frameworkxamlcombobox
Paweld_00
Paweld_00

Reputation: 81

Gets value from combobox in wpf binding by entity framework

I bind my combobox from entityframework and when I try to get value from my combobox by selecting value it gives back text like this {NameOfCompany = Name } How can i get only the value Name?

Thats the code in xaml

 <ComboBox  SelectionChanged="ComboFirma_SelectionChanged" Name="ComboFirma"  Margin="109,10,10,0" Height="28" VerticalAlignment="Top">
<ComboBox.ItemTemplate>
   <DataTemplate>
     <TextBlock Name="txbCombo" Text="{Binding NameOfCompany}"></TextBlock>
    </DataTemplate>
 </ComboBox.ItemTemplate>

And I bind it like this.

var query2 = from f in model.Firmas
                     select new
                     {
                         f.NameOfCompany
                     };
ComboFirma.ItemsSource = query2.ToList();

I tried something like this to gets the selected value but always i get an exception.

var str = (TextBox)ComboFirma.Template.FindName("txbCombo", ComboFirma);
        lblCompanyNameShow.Content = str.SelectedText;

Upvotes: 0

Views: 1176

Answers (2)

dkozl
dkozl

Reputation: 33364

ComboBox.SelectedItem will be of a item type. So normally you would need to cast SelectedItem to type of item in your collection. Now, because, in your case it's anonymous type, it's more difficult I think easiest way to get NameOfCompany is to use dynamic

dynamic selectedItem = ComboFirma.SelectedItem;
var name = selectedItem.NameOfCompany;

or you can use SelectedValue/SelectedValuePath

<ComboBox Name="ComboFirma" ... SelectedValuePath="NameOfCompany">

and in code 

var name = (string)ComboFirma.SelectedValue;

Upvotes: 1

BSG
BSG

Reputation: 2104

Try like this

TextBlock tb1 = (TextBlock)ComboFirma.SelectedItem;
lblCompanyNameShow.Content = str.SelectedText;

Upvotes: 0

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