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How to load ItemsSource before setting SelectedItem in ListView?

I have a MVVM page that contains a ListView. I bind ItemSource and SelectedValue, but first time it calls converter for SelectedValue then loads ItemSource.
<ListView x:Name="ListViewSurahs"
ItemsSource="{Binding MyItems}"
FlowDirection="LeftToRight"
Grid.Column="2"
Grid.Row="4"
VerticalAlignment="Top"
HorizontalAlignment="Left"
HorizontalContentAlignment="Center"
SelectionMode="Single"
ScrollViewer.VerticalScrollBarVisibility="Auto"
DisplayMemberPath="Name"
SelectedValuePath="ID"
SelectedValue="{Binding Source={StaticResource CurrentInfo},
Path=Instance.ID,Mode=OneWay}"
ShowsScrollingPlaceholders="False" />
because of that I lose SelectedItem and no Items get selected. what should I do to load ItemsSource first?

Firstly you can try to type your ItemsSource in codebehind. You have to add an UserLoaded property in your xaml file to do this. But maybe we need to see your codebehind and viewmodel. Anyway you should try to change your SelectedValue binding mode OneWay to the TwoWay.
After that you should watch your binding style. You have to complete most of your development progress in your viewmodel, and after that you could just call your viewmodel from your xaml codebehind (.cs) with get-set. So, you will have a very clean binding structure.
In this way you can type as follows instead of yours,
SelectedValue="{Binding Model.BlaBla, Mode=TwoWay}"
in here Model is defined and called in your codebehind of xaml file (.cs). For example in top of your public sealed partial class
public YourViewModelName Model { get; set; }
and in the same file public YourXamlName()
Model = new YourViewModelName();
It is a quickly answer and I am not sure. But you should give a shot.
Good luck.

Silverlight combobox selectedvalue string property binding

I have a combobox with items like below:
{[1, US]}
{[2, UK]}
My combobox will display it with the Value. My problem is I can't set the SelectedValue property of my combobox.
<ComboBox Name="cbSource" Grid.Row="1" Grid.Column="3"
ItemsSource="{Binding Datas.Countries, Mode=OneWay}"
SelectedValue="{Binding CurrentObject.Country, Mode=TwoWay}"
DisplayMemberPath="Value" SelectedValuePath="Key"></ComboBox>
Now my CurrentObject.Country is a string property with a value of UK. I also tried this one below but no luck.
DisplayMemberPath="Value" SelectedValuePath="Value"
What can I do here?

It is not possible to achieve your behavior using a key value pair. See the example below.
Just create a class having 2 properties one for key and one for value. Then bind a collection of this class as the itemssource and bind the selectedvalue to a string property. Ie Datas.Countries is the collection of the class.
<ComboBox Name="cbSource" Grid.Row="1" Grid.Column="3"
ItemsSource="{Binding Datas.Countries, Mode=OneWay}"
SelectedValue="{Binding SomePropertyToHoldKeyValue, Mode=TwoWay}"
DisplayMemberPath="Value" SelectedValuePath="Key"></ComboBox>
I think we can understand the difference between SelectedItem, SelectedValue, DisplayMemberPath and SelectedValuePath better with an example. See this class:
public class Employee
{
public int Id;
public string Name;
}
and the following xaml:
<ComboBox ItemsSource="{Binding Source={StaticResource Employees}}"
DisplayMemberPath="Name"
SelectedValuePath="Id"/>
DisplayMemberPath points to the Name property, so the value displayed in the ComboBox and the Employee entries contained in the drop down list, will be the Name property of the Employee object.
To understand the other two, you should first understand SelectedItem. SelectedItem will return the currently selected Employee object from the ComboBox. You can also assign SelectedItem with an Employee object to set the current selection in the ComboBox.
SelectedValuePath points to Id, which means you can get the Id of currently selected Employee by using SelectedValue. You can also set the currently selected Employee in the ComboBox by setting the SelectedValue to an Id (which we assume will be present in the Employees list).

Unable to bind Contact object to controls without editing the collection

I have a collection of Contact objects that I've bound as follows in a WPF form:
<ComboBox Name="Name"
Text="{Binding Path=Contact.FullName}"
ItemsSource="{Binding ContactsCollection}"
SelectedItem="{Binding Path=Contact, Mode=TwoWay}"
IsEditable="true"
IsTextSearchEnabled="True"
TextBoxBase.TextChanged="Name_TextChanged"/>
<TextBox Name="Position" Text="{Binding Path=Contact.Position}"/>
<TextBox Name="Phone" Text="{Binding Path=Contact.PhoneNumber}"/>
I'd like the contact to be selected when the user starts typing in the combo 'IsTextSearchEnabled=true'.
The problem is that I'd like the items in the collection to remain read-only. Once a contact has been selected, any text deletes or additions modify the contact name in the collection.
How can I bind a collection to a combobox, enable search and prevent edits to the collection?

I could be missing something here, but if you don't want an editable ComboBox, try not setting the ComboBox.IsEditable property to True. Using this simple code, I can display items in a ComboBox and make selections by typing (when the ComboBox is focused) without editing anything:
<ComboBox ItemsSource="{Binding Items}" IsTextSearchEnabled="True" Height="25" />

Thanks for your input. It sorted me out. Removing the SelectedItem property and setting Position and PhoneNumber in the PropertyChanged event was what I needed.

selectedItem is not working in xaml

i am trying to set selected item through following code but its not working:
<StackPanel Orientation="Horizontal">
<TextBlock Text="Sort by" Margin="10" VerticalAlignment="Center"/>
<ComboBox Width="{StaticResource ComboWidth}" x:Name="sortcombo" ItemsSource="{Binding Path=SortOrder}" SelectionChanged="SearchCombo_SelectionChanged" SelectedItem="{Binding Path=DefaultSortIndex}">
<ComboBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=Sort}"/>
</DataTemplate>
</ComboBox.ItemTemplate>
</ComboBox>
</StackPanel>
however it works fine if i use selectedIndex instead with binding to 0th index. Any thing wrong with declaration?

By the name of your property DefaultSortIndex maybe you are trying to bind an int for SelectedItem.
SeletedItem refers to an element of your collection binded to ItemsSource, so the property binded to SelectedItem must be of type of your collection elements.

If you bind int value to selected item then it will not work, you should bind element for that. For int value you can set it as mentioned in following post :
Set Selected Item of WPF Combobox to User Setting

found out the issue, actually the data source was creating new list everytime I call getData().

Bind ObservableCollection<XmlNode> to combobox wpf

I'm trying to bind a combobox to a ObservableCollection.When the form is displayed the combobox is empty.The same code with ObservableCollection of type string works perfectly. I've got a feeling that my XPath is wrong. Any suggestions are welcome:
XAML:
<ComboBox ItemsSource="{Binding ItemParameters, XPath=InnerXml/name,Mode=TwoWay}" SelectedIndex="0" Margin="2" VerticalAlignment="Top" HorizontalContentAlignment="Stretch" Grid.Row="1" Grid.Column="1" Height="24" />
ObservableCollection XmlNode :
public ObservableCollection<XmlNode> _itemParameters = new ObservableCollection<XmlNode>();
public ObservableCollection<XmlNode> ItemParameters
{
get { return _itemParameters; }
set { _itemParameters = value; }
}
The combobox should display the name attribute of each XmlNode in the collection:
Update:
I've tried using DisplayMemberPath in two different ways, but the combobox still contains no data:
DisplayMemberPath="{Binding XPath=name}" ItemsSource="{Binding ItemParameters}"
DisplayMemberPath="{Binding XPath=InnerXml/name}" ItemsSource="{Binding ItemParameters}"
Solution:
This did the trick, hope it helps someone else as well:
<ComboBox DisplayMemberPath="#name" ItemsSource="{Binding ItemParameters}"

First of all you are setting Path and XPath at the same time, which are conficting properties, secondly you bind the ItemsSource, which has nothing to do with what you want to show inside the item. Either use DisplayMemberPath or an ItemTemplate for that, the ItemsSource should just be bound to ItemParameters.