/// <summary>
/// Checks the duplicate.
/// </summary>
/// <param name="siteURL">The site URL.</param>
/// <param name="value">The value.</param>
/// <param name="columnName">Name of the column.</param>
/// <param name="listName">Name of the list.</param>
/// <returns>bool</returns>
public bool CheckDuplicate(string siteURL, string value, string columnName, string listName)
{
objCommonDAL = new CommonDAL();
return objCommonDAL.CheckDuplicate(siteURL, value, columnName, listName);
}