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display value from db in combobox

Posted By:      Posted Date: September 02, 2010    Points: 0   Category :WPF
 





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The combobox and listbox controls in Visual Basic have no built-in support for displaying text strings that are too long to fit in the visible area of either control. This article describes several techniques to improve the readability of long strings in each control. The first technique uses tooltips to display a combobox or listbox item. The other techniques, which use various Windows APIs, include adding a horizontal scrollbar for a listbox and determining the necessary width of the longest string given the font attributes of the text. The required steps are described for both comboboxes and listboxes.

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display value from db in combobox

  
Hi. Why this code not populate data in combobox? I have two windows everything the same code also in windows 1 and windows 2 but in windows to combobox not populated by data and in widows one yes populated. there is a code / private void Window_Loaded(object sender, RoutedEventArgs e)         {               DataSet ds1 = new DataSet();             SqlConnection con = new SqlConnection("Data Source=XIO-ST33;Initial Catalog=Vea;Integrated Security=True");             SqlCommand cmd1 = new SqlCommand("SELECT CUSTOM_ALIAS, C_DESCRIPT FROM [MHGROUP].CUSTOM1", con);             SqlDataAdapter sqlDa1 = new SqlDataAdapter();             sqlDa1.SelectCommand = cmd1;             sqlDa1.Fill(ds1);                 comboBox6.ItemsSource = ds1.Tables[0].DefaultView;           }     }   xaml code   <   ComboBox Height="29.997" Margin="

How to display LineStyles from MS WORD in ComboBox?

  
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ComboBox Display list does not update if a datasource is a boxed string

  
I have a combo box databound to a BindingSource bound to a List<Holder> it has Holder.Name as its display value. I also have a text box bound to Holder.Name but if I change the text in the text box it will not change what is displayed in the combo box. Changing selected items and changing back will show the updated text in the text box but will still have the old value displayed in the combo box. How do I make the item in the combo box update? namespace Sandbox_Form { public partial class Form1 : Form { public Form1() { InitializeComponent(); lstBroken = new List<Holder>(); lstBroken.Add(new Holder("test1")); lstBroken.Add(new Holder("test2")); bsBroken = new BindingSource(lstBroken, null); cmbBroken.DataSource = bsBroken; cmbBroken.DisplayMember = "Name"; txtBroken.DataBindings.Add("Text", bsBroken, "Name"); lstWorks = new List<string>(); lstWorks.Add("test3"); lstWorks.Add("test4"); bsWorks = new BindingSource(lstWorks, null); cmbWorks.DataSource = bsWorks; txtWorks.DataBindings.Add("Text", bsWorks, null); } } public class Holder { public Holder(string name) { Name = name; } public string Name { get; set; } } }

Display the item in the ComboBox inside the ListView(GridView)

  
I have the below code used in binding the values to the ComboBox in GridView(ListView), please help me < ListView Margin="480,51,6,14" Name="grid1" ItemsSource="{Binding UserDetail}" IsSynchronizedWithCurrentItem="True" Width="389" Grid.Column="1" > <ListView.View> <GridView> <GridViewColumn Header="UserName" Width="120" DisplayMemberBinding="{Binding Path=WindowsUser}"/> <GridViewColumn Header="Role" Width="140"> <GridViewColumn.CellTemplate> <DataTemplate> <ComboBox Name="Rolecombo" Width="120" ItemsSource="{Binding Path=UserDetail}" SelectedValue="{Binding PFR_Tbl_Role.Role}"/> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn Header="Active" x:Name="column" Width="100"> <GridViewColumn.CellTemplate> <DataTemplate> <Grid Width="{Binding ElementName=column,Path=Width}"> <CheckBox IsChecked="{Binding Active}" HorizontalAlignment="Center" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> </GridView>  </ListView.View> </ListView>

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Hi. I checked many places but did not find anything solving my problem. I populate the combobox from sql db with data set. I have a problem when UI opened at the start combobox populated with data and I not need see the data at the start. There is C# code                   DataSet ds1 = new DataSet();                 SqlConnection con = new SqlConnection("Data Source=DAN-PC;Initial Catalog=Veolia;Integrated Security=True");                 SqlCommand cmd1 = new SqlCommand("SELECT CUSTOM_ALIAS, C_DESCRIPT FROM [MHGROUP].CUSTOM3", con);                 SqlDataAdapter sqlDa1 = new SqlDataAdapter();                 sqlDa1.SelectCommand = cmd1;                 sqlDa1.Fill(ds1);                  DivisonName.ItemsSource = ds1.Tables[0].DefaultView;               &nbs

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I am new to C# but I'm resisting the urge to run screaming back to VB.NET. I'm working with a WPF application using C# code-behind and a lot of binding to a SQL 2005 database backend.

GOAL: I have a comboBox bound to a tbl_Systems entity which provides a list of systems for user selection. When the User selects a system from the comboBox I want to display the selection's text in a separate Label. The big picture is that several comboBox selections will be used to build a query string that will populate a listbox. So, I want to display these selected values in the Label so the user can see the query string they have dictated.

PROBLEM: When I set the Label content property to the comboBox SelectedItem property the entity tbl_System is displayed in the Label not the comboBox selection text.

SUSPICION: From reading similar examples in VB I suspect that the comboBox SelectedItem is actually a "datarowview" or the C# equivalent. But I don't know how to translate this explanation to C#.

The UI XAML comboBox properties are set as such:

 DisplayMemberPath

Multi-Column ComboBox that binds to it's Value and Display Members for the drop down

  
I'm looking for a MultiColumn ComboBox solution as well. I've seen a lot of people talking about using Templates and I have to admit I'm not entirely comfortable with using Templates yet in WPF.

What I'm looking for specifically is a ComboBox that simply shows a two column drop down that displays the values resolved from DisplayMemberPath and SelectedValuePath for each item of the bound ItemsSource of the ComboBox. Once one of the items is selected I'm looking for the SelectedValue only to be displayed in the Text area.


Below is a crude diagram to explain what I'm looking for.

 __________________________
|CODE3___________________|_|
|CODE1 | Display value 1 | |
|CODE2 | Display value 1 | |
|CODE3 | Display value 1 | |
 __________________________




I've fumbled around using RelativeSource and a few other things but nothing works so far. If anybody has a clue about different ways to implement this I would love to hear them. A quick example using templates would be wonderful but also note that I'm planning probably to make this a reusable control in our solution since this is a common paradigm in our UI that I wouldn't want to have to repeat on each Window or UserControl in various projects.

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i have combobox with a custom style bind to an enumeration. and below that there is a text box. when i select the combo box value the list doesn't disappear, 

 

the style to the combobox is as follows 

 

<Style TargetType="ComboBoxItem">

        <Setter Property="Background" Value="Transparent" />

        <Setter Property="HorizontalContentAlignment" Value="Left" />

        <Setter Property="Padding" Value="6,4" />

        <Setter Property="KeyboardNavigation.ControlTabNavigation" Value="Local" />

        <Setter Property="VerticalContentAlignment" Value="Top" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="ComboBoxItem">

                    <Grid Background="{TemplateBinding Background}">

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styled combobox item rendering issue while display over another control

  

i have combobox with a custom style bind to an enumeration. and below that there is a text box. when i select the combo box value the list doesn't disappear, 

 

the style to the combobox is as follows 

 

<Style TargetType="ComboBoxItem">

        <Setter Property="Background" Value="Transparent" />

        <Setter Property="HorizontalContentAlignment" Value="Left" />

        <Setter Property="Padding" Value="6,4" />

        <Setter Property="KeyboardNavigation.ControlTabNavigation" Value="Local" />

        <Setter Property="VerticalContentAlignment" Value="Top" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="ComboBoxItem">

                    <Grid Background="{TemplateBinding Background}">

&n

styled combobox item rendering issue while display over another control

  

i have combobox with a custom style bind to an enumeration. and below that there is a text box. when i select the combo box value the list doesn't disappear, 

 

the style to the combobox is as follows 

 

<Style TargetType="ComboBoxItem">

        <Setter Property="Background" Value="Transparent" />

        <Setter Property="HorizontalContentAlignment" Value="Left" />

        <Setter Property="Padding" Value="6,4" />

        <Setter Property="KeyboardNavigation.ControlTabNavigation" Value="Local" />

        <Setter Property="VerticalContentAlignment" Value="Top" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="ComboBoxItem">

                    <Grid Background="{TemplateBinding Background}">

&n

styled combobox item rendering issue while display over another control

  

i have combobox with a custom style bind to an enumeration. and below that there is a text box. when i select the combo box value the list doesn't disappear, 

 

the style to the combobox is as follows 

 

<Style TargetType="ComboBoxItem">

        <Setter Property="Background" Value="Transparent" />

        <Setter Property="HorizontalContentAlignment" Value="Left" />

        <Setter Property="Padding" Value="6,4" />

        <Setter Property="KeyboardNavigation.ControlTabNavigation" Value="Local" />

        <Setter Property="VerticalContentAlignment" Value="Top" />

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="ComboBoxItem">

                    <Grid Background="{TemplateBinding Background}">

&n

ComboBox : Display selected value with Binding

  

Hello,

I have a problem with my ComboBox, it won't show the selected value even if it select it. Items are binded.

Code behind: Me.DataContext = from Miss in myXDoc.<Miss>

Code XAML :

<

 

 

r:

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This code drop is part of a smash and grab series. If you're in a rush, you can just grab this code and insert it into your application, no understanding is required. When you have some time (ya, right) you may want to review the source code.

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