windows form text box text alignment

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WinForms

text

I have a windows form textbox and a browse button. when i clicks the browse button a folder selection dialog pops up and iam able to select a folder which will be shown in the text box

suppose my full folder path is "A:/somefolder/subfolder1/subfolder2"

My text box content is like

A:/somefolder/subfolder1/su

But i want my text box to look like

older/subfolder1/subfolder2

Thanks in advance.