Need to add FieldRef to the selection text

Aspose.Words Product Family
1 
<w:r>
	<w:fldChar w:fldCharType="begin" />
</w:r>
<w:r>
	<w:instrText xml:space="preserve"> REF _Ref100000001 \h </w:instrText>
</w:r>
<w:r>
	<w:fldChar w:fldCharType="separate" />
</w:r>
<w:r>
	<w:t xml:space="preserve">Schedule 1</w:t>
</w:r>
<w:r>
	<w:fldChar w:fldCharType="end" />
</w:r>

I want to generate the ooxml like this. Means find the “Schedule 1” text and try to add fldChar begin, seperate and end. How can I acheive this aspose words. Some one please help me on this.

2

@coderthiyagarajan1980 Please check the answer in your second topic.