Hi

That's fine for when you are creating a viewmodel within the user interface constructor, but if the datacontext is null at that point, how do you change a grids column label text  dynamically/programmatically? (it does not necessarily have to be via binding)

<igDP:Field Name="CodeName" Label="Code" Width="Auto" />

I want the text in the label to be dynamic depending on a value in the viewmodel  ("xxx Code")

Thanks

You can access the TextBlock inside the LabelPresenter and modify it using code with the example below.  In my opinion this is a terrible hack, but as an earlier post states the grid was not architected for binding because the fields don't exist in the visual tree.  Hope this helps.

private void UpdateLabels()
{

    Infragistics.Windows.Utilities.GetDescendantFromType<LabelPresenter>(AllocationsGrid, false, new Infragistics.Windows.Utilities.DependencyObjectSearchCallback<LabelPresenter>(DescendentCallback));
}

 private bool DescendentCallback(LabelPresenter target)
        {
            TextBlock textBlock = Infragistics.Windows.Utilities.GetDescendantFromType(target, typeof(TextBlock), false) as TextBlock;
            if (textBlock != null)
            {
                //get the labelPresenter you want to modify based on a unique value (you could set the Tag property in xaml).
                if (target.Tag == "SomeUniqueProperty")
                {
                      textBlock.Text = "New Label Name";
                      return true; //breaks the descendent callback recursion
                }
             }
             
             return false;
         }
 
 
You may also need to hook into the grids "LayoutUpdated" event and also call your UpdateLabels() method so the grid won't overwrite your changes.
private void MyGrid_LayoutUpdated(object sender, EventArgs e)


{
            UpdateLabels();
}   
 

Sorry for the double post but the code didn't format in the last 

post...

private void UpdateLabels()
{
    Infragistics.Windows.Utilities.GetDescendantFromType

    <LabelPresenter>(AllocationsGrid, false, new 

    Infragistics.Windows.Utilities

    .DependencyObjectSearchCallback

    <LabelPresenter>(DescendentCallback));
}
 
private bool DescendentCallback(LabelPresenter target)
{
    TextBlock textBlock = Infragistics.Windows.Utilities.

    GetDescendantFromType(target, typeof(TextBlock), false) 

    as TextBlock; if (textBlock != null)
    {                 
        //get the labelPresenter you want to modify

        based on a unique 

        value (you could set the Tag property in xaml).
        if (target.Tag == "SomeUniqueProperty")
        {
            //set the label to whatever you want here
            textBlock.Text = "New Label Name";
            //breaks the descendent callback recursion
            return true; 
        }
    }            
    return false;
}
 
private void MyGrid_LayoutUpdated(object sender, EventArgs e)
{ 
    UpdateLabels(); 
}
 
private void MyPage_Loaded()
{
    UpdateLabels();
}