please help me about grid view item command(required code in c#)

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Gridview

Required code is in C#

Employee Id	Employee Name	Employee Address	Select

1	          Sanjiv	   mumbai	         Link Button(Edit)
2	          Santosh	   Kolkata	         Link Button(Edit)
3	          abcd	           wewewe	         Link Button(Edit)
4	          ererer	   trtrt	         Link Button(Edit)
5	          Akaash	   Delhi	         Link Button(Edit)
7	          Kunal	           Noida	         Link Button(Edit)
10	          ererer	   hjhjhjj	         Link Button(Edit)

this is output of my grid view, fields are employee id, employee name,employee adress. and select is the item template header name.

in item item template one link button is inserted and its name is Edit.
when i click on Edit, then all values like 1, sanjiv, mumbai is shown in different textbox.

when click on Edit all fields value will show on textbox controls or label controls.

[edit]Code block added - OriginalGriff[/edit]