TextBlock inside of ComboBox doesnt display Text but contains values.

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C#

combobox

text

Silverlight5

I am trying to Bind the TextBlock inside ComboBox through Code. I am able to bind the textblock sucessfully but For some reasons TextBlock doesnt display Text Values.

I have mechanism which checks for the selected values and there I am getting the selected values without any problem.

So to conclude, My binding is working fine but I am missing out something hence textblock is not displaying text that is bound with it.

This is the code I am using for Binding:
where "lObjTextBlock" is TextBlock inside of ComboBox.

Binding lObjBinding = new Binding();

lObjBinding.Path = new PropertyPath("[" + lObjMap.PropertyName + "]");
                                  
lObjTextBlock.SetBinding(TextBlock.TextProperty, lObjBinding);

This is the XAML for the TextBlock:

<my:HComboBox Name="cmbRefDoctor">
	<my:HComboBox.ItemTemplate>
		<DataTemplate>
                    <TextBlock x:Name="txtRefDoctorName" />
		</DataTemplate>
	</my:HComboBox.ItemTemplate>
</my:HComboBox>

Once again : My problem is that TextBlock is not displaying any Text althought values are being set.

Would love to get all possible suggestions. Thanks in advance.