//Button click adds new P_Size to database protected void AddPSize_Click(object sender, EventArgs e) { //Conversion from String to Integer int sizeID = Convert.ToInt32(SizeID.Value); int psize = Convert.ToInt32(PSize.Value); //Service function to add P_Size to database string P_Size = SR.Addpsize(sizeID, psize); //if adding is successful if (P_Size.Equals("added")) { //redirect to the home page Response.Redirect("Home.aspx"); } //If P_Size was not added to database else if (P_Size.Equals("not added")) { //Display error message to admin error.Text = "Product size type added to database. "; error.Visible = true; } //If P_Size already exists else if (P_Size.Equals("error")) { //Display error message to admin error.Text = "MProduct sizeask type already exists. "; error.Visible = true; } }