C# WPF Error The Type ComboLoad Does Not Support Direct Content

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C#

WPF

Hello Friends :)
I'm New to c# and wpf,and i'm stuck in this , i googled but i cant find a answer .
please Help :)

my Qusetion,
I want to call a Method in GetLoc that takes 1 argument (Object of ComboLoad Class) from my xaml.

Combo Load Class

namespace BE
{
    public class ComboLoad
    {
        public int MyProperty { get; set; }
    }
}

GetLoc Class

namespace DS
{
    public class GetLoc
    {
        public GetLoc(ComboLoad obj)
        {

        }

        public void getCombodata(ComboLoad cmb)
        {
            new CmbLoad().getLocToCombo(cmb);


        }
    }
}

And My XAML
/*<window.resources>
<ObjectDataProvider x:Key="cmbObjectBE" ObjectType="{x:Type BE:ComboLoad}" />
<ObjectDataProvider ObjectType="{x:Type DS:GetLoc}"
MethodName="getCombodata" x:Key="cmbObjectDS">
<ObjectDataProvider.MethodParameters>
<be:comboload xmlns:be="#unknown">cmbObjectBE
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>


<grid datacontext="{Binding Source={StaticResource cmbObjectDS}}">*/

It says their is a error in this line
"<be:comboload xmlns:be="#unknown">cmbObjectBE"

Error -> The Type ComboLoad Does Not Support direct Content


Sorry For the Poor English
And Thank You ! :)