Default text of combobox

Question

i want a default text on my combobox as i have binded my combo box to certain list of items...here is my code of xaml file.

<ComboBox x:Name="ProjectComboBox" 
          Text="{Binding ProjectNameBinding}" 
          ItemsSource="{Binding projectList, ElementName=MainWin}"
          SelectedValuePath="_id" DisplayMemberPath="_name"  
          SelectedItem="{Binding ProjectNameBindingClass, Mode=OneWayToSource}" 
          Width="130" Background="White" BorderThickness="1"  
          FontFamily="/TimeSheet;component/Resources/#Open Sans" FontSize="12" 
          Canvas.Right="159" Canvas.Top="8" Height="47">
    <ComboBox.ItemTemplate>
        <DataTemplate>
            <TextBlock Text="{Binding _name}" TextWrapping="Wrap"/>
        </DataTemplate>
    </ComboBox.ItemTemplate>
</ComboBox>

it helps, if you ask a concrete question on the end of the text. it also if you describe what you already tried to achieve that - so you show own efforts instead of blindly letting others work for you. ;-) — L-Ray, Mar 21 '14 at 12:43
Possible duplicate http://stackoverflow.com/questions/1426050/how-to-display-default-text-select-team-in-combo-box-on-pageload-in-wpf — Sajeetharan, Mar 21 '14 at 12:44

score 2 · Answer 1 · edited May 23 '17 at 11:49

2

Have you tried Text Property

<ComboBox x:Name="ProjectComboBox"
  IsEditable=True
  Text="{Binding ProjectNameBinding}" ....../>

or

You can use SelectedIndex Property and set it to 0(SelectedIndex=0) which displays first item in Source given.

or

you can do like this as in the link How to display default text "--Select Team --" in combo box on pageload in WPF?

edited May 23 '17 at 11:49

Community

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answered Mar 21 '14 at 12:43

NullReferenceException

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xmlns:Converters="clr-namespace:MyProject.Resources.Converters" , this line in xaml gives an error,what to write exactly and is there anything to import,i am missing it??????? – Safwan Mar 21 '14 at 12:46
i was not embedding the converter properly in my project folder – Safwan Mar 26 '14 at 11:41
you also suggested a very nice way but actually i didnt wanted that way...i have posted my code down check it out – Safwan Mar 26 '14 at 11:52
can you help me out on a question i have posted,i am not able to get alpha icon transparency,check out my question if you have any solution – Safwan Mar 26 '14 at 11:55
Yeah i saw.Check the Converters class namespace.Is it MyProject.Resources.Converters..? – NullReferenceException Mar 26 '14 at 11:55
help me out on the question of alpha icon transparency i have posted please if you can – Safwan Mar 26 '14 at 11:56
Ok i will check the question. – NullReferenceException Mar 26 '14 at 11:56

score 1 · Accepted Answer · answered Mar 26 '14 at 11:38

I achieved it atlast by taking a new textblock and applying a trigger on it,and using the IsNullConverter class it helped

<TextBlock Text="Select Project" IsHitTestVisible="False" FontFamily="/TimeSheet;component/Resources/#Open Sans" FontSize="14" Canvas.Right="191" Canvas.Top="22">
                        <TextBlock.Resources>
                            <Converters:IsNullConverter x:Key="isNullConverter"/>
                        </TextBlock.Resources>
                        <TextBlock.Style>
                            <Style TargetType="TextBlock">
                                <Style.Triggers>
                                    <DataTrigger Binding="{Binding ElementName=ProjectComboBox,Path=SelectedItem,Converter={StaticResource isNullConverter}}" Value="False">
                                        <Setter Property="Visibility" Value="Hidden"/>
                                    </DataTrigger>
                                </Style.Triggers>
                            </Style>
                        </TextBlock.Style>
                    </TextBlock>

score 0 · Answer 3 · edited May 23 '17 at 12:11

0

Try:

DefaultText="Not Specified"

edit ah sorry I was thinking of my control have a read of this How to show text in combobox when no item selected?

edited May 23 '17 at 12:11

Community

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answered Mar 21 '14 at 12:29

Chris

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I think there is no property like "DefaultText" in combobox and also in text block – Safwan Mar 21 '14 at 12:30
I cannot change the C# code as i have my xml file binded to it i.e to the list of combobox ,can we have any solution using XAML code only – Safwan Mar 21 '14 at 12:41

score 0 · Answer 4 · answered Mar 21 '14 at 12:54

0

Try this in page load or form load

 comboBox.SelectedItem = null;
 comboBox.Text = "---select an item---";

answered Mar 21 '14 at 12:54

user3417203

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Default text of combobox

4 Answers4