//Insering data to the database
public bool Insert(TagsClass c)
{
//creating default retun type and setting its value to false
bool isSuccess = false;
//step 1 : connect database
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql query to insert data
string sql = "Insert into ManageTag (SubjectName , SubjectCode , RelatedTag) values ( @SubjectName , @SubjectCode , @RelatedTag)";
//creating cmd usin sql and conn
SqlCommand cmd = new SqlCommand(sql, conn);
//create parameters to add data
cmd.Parameters.AddWithValue("@SubjectName", c.TagName);
cmd.Parameters.AddWithValue("@SubjectCode", c.TagCode);
cmd.Parameters.AddWithValue("@RelatedTag", c.RelatedTag);
//connection open
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if the query runs successfully then the value of rows will be greater than zero else its value will be zero
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//Method to update data in database
public bool Update(TagsClass c)
{
//create a default return type and set its value to false
bool isSuccess = false;
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql to update data in database
string sql = "Update ManageTag set SubjectName =@SubjectName , SubjectCode =@SubjectCode , RelatedTag=@RelatedTag where TagID =@TagID";
//creating sql command
SqlCommand cmd = new SqlCommand(sql, conn);
//create parameters to add values
cmd.Parameters.AddWithValue("@SubjectName", c.TagName);
cmd.Parameters.AddWithValue("@SubjectCode", c.TagCode);
cmd.Parameters.AddWithValue("@RelatedTag", c.RelatedTag);
cmd.Parameters.AddWithValue("TagID", c.TagID);
//open DB connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if the query runs successfully then the value of rows will be greater than zero else its value will be zero
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
conn.Close();
}
return(isSuccess);
}
//Method to delete data in database
public bool Delete(TagsClass c)
{
//default return value and set if false
bool isSuccess = false;
//create sql connection
SqlConnection conn = new SqlConnection(myconnstrng);
try
{
//sql to delete data
string sql = "Delete from ManageTag where TagID = @TagID";
//creating sql command
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.Parameters.AddWithValue("@TagID", c.TagID);
//open connection
conn.Open();
int rows = cmd.ExecuteNonQuery();
//if run success value will be greater than ero othrwise it will be zero
if (rows > 0)
{
isSuccess = true;
}
else
{
isSuccess = false;
}
}
catch (Exception ex)
{
}
finally
{
//close connection
conn.Close();
}
return(isSuccess);
}