How to put complete vertical lines in Tables

Question

I have made this table for latex and placed 1 vertical line in it but this line is discontinuous i want this vertical line to meet with the horizontal line my code is

\begin{table}[htbp]
  \centering
  \caption{Add caption}
    \begin{tabular}{cc|cccc}
    \toprule
    \textbf{Sr. No.} & \multicolumn{1}{c}{\textbf{Parameter}} & \textbf{Number} & \textbf{C} & \textbf{D} \\
    \midrule
    \multirow{2}[1]{*}{1} & \multirow{2}[1]{*}{A} & \multirow{2}[1]{*}{2} & 0     & 0    \\
          &       &       & 0     & 0    \\
    1     & B & 2     &  5   & 7     \\
    \end{tabular}%
  \label{tab:addlabel}%
\end{table}% 

Answer 1

Using vertical lines with booktabs is not recommended at all.

Excerpt from the documentation:

If you want to "separate" the first two columns from the others, I suggest you to use \cmidrule as in the following example:

\documentclass{article}
\usepackage{multirow,booktabs}

\begin{document}

\begin{table}[htbp]
  \centering
  \caption{Add caption}\label{tab:addlabel}
    \begin{tabular}{cccccc}
    \toprule
    \textbf{Sr. No.} & \textbf{Parameter} & \textbf{Number} & \textbf{C} & \textbf{D} \\
    \cmidrule(lr){1-2}\cmidrule(lr){3-5}
    \multirow{2}[1]{*}{1} & \multirow{2}[1]{*}{A} & \multirow{2}[1]{*}{2} & 0     & 0    \\
          &       &       & 0     & 0    \\
    1     & B & 2     &  5   & 7     \\
    \end{tabular}
\end{table}

\end{document} 

Output:

Also note that the \label must immediately follow the \caption command.