How to pass Where Clause to Store Procedure as a parameter

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I want to pass one fragment of query to store procedure my query in SP is

SQL

if @Mode= 'Searching'
BEGIN
Select [Hadith_Text]
      ,[Hadith_Urdu]
      ,[Hadith_English]
      ,[Chapter_English_Name]
      ,[Chapter_Urdu_Name]
      ,[Baab_English_Name]
      ,[Baab_Urdu_Name]
      ,[Baab_Id]
      ,[Hadith_Book_Number]
	  From Hadiths_old
	  Where Baab_Id < 100
	  AND = @WhereClause
	  order by ID
END

@WhereClause i am passing as parameter from C#
and this is

C#

if (clbBooksName.GetItemChecked(0) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 1 ";
            }
             if (clbBooksName.GetItemChecked(1) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 2 ";
            }
           if (clbBooksName.GetItemChecked(2) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 3 ";
            }
            if (clbBooksName.GetItemChecked(3) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 4 ";
            }
            if (clbBooksName.GetItemChecked(4) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 5 ";
            }
             if (clbBooksName.GetItemChecked(5) == true)
            {
                BookSelection += "OR Hadith_Book_Number = 6 ";
            }
            foreach (DataGridViewRow Datarow in dataGridView1.Rows)
            {
                if (Datarow.Cells[0].Value != null && Datarow.Cells[1].Value != null && Datarow.Cells[2].Value != null && Datarow.Cells[3].Value != null)
                {
                    WhereClause += 
Datarow.Cells[0].Value.ToString() + " " + Datarow.Cells[1].Value.ToString() + " " + Datarow.Cells[2].Value.ToString() + " " + Datarow.Cells[3].Value.ToString();
                }
            }

Posted 29-Oct-13 5:43am

Muhamad Faizan Khan

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Richard C Bishop · Accepted Answer · 2013-10-29T05:52:00

You want to do something like this:

if @Mode= 'Searching'
BEGIN
Select [Hadith_Text]
      ,[Hadith_Urdu]
      ,[Hadith_English]
      ,[Chapter_English_Name]
      ,[Chapter_Urdu_Name]
      ,[Baab_English_Name]
      ,[Baab_Urdu_Name]
      ,[Baab_Id]
      ,[Hadith_Book_Number]
	  From Hadiths_old
	  Where Baab_Id < 100 + ' ' + @WhereClause
	  order by ID
END

This will work, provided your "@WhereClause" variable is assigned the value of "BookSelection" in your C# code.