求讲解ASP。NET代码
各位高手帮忙解释下每行代码的意思。感谢！！！！（大体思路也可以）Shipping.aspx：
public partial class Manger_Shipping : System.Web.UI.Page
{
MangerClass mcObj = new MangerClass();
protected void Page_Load(object sender, EventArgs e)
{
if (Convert.ToString(Session["AID"]) == "")
{
Response.Redirect("Fail.aspx");
}
if (!IsPostBack)
{
if (this.Request.QueryString["Action"] == "Manage")
{
lblAction.Text = "配送方式管理";
gvShipBind();
}
else if(this.Request.QueryString["Action"]=="Add" )
{
lblAction.Text="添加配送方式信息";
}
else if (this.Request.QueryString["Action"] == "Modify")
{
lblAction.Text = "修改配送方式信息";
GetShipInfo();
}
}
}
public string GetVarStr(string P_Str_ShipFee)
{
return mcObj.VarStr(P_Str_ShipFee, 2);
}
public string GetClass(int P_Int_ClassID)
{
string P_Str_ClassName = mcObj.GetClass(P_Int_ClassID);
return P_Str_ClassName;
}
public void gvShipBind()
{
DataSet ds = mcObj.ReturnShipDs("ShipInfo");
gvShip.DataSource = ds.Tables["ShipInfo"].DefaultView;
gvShip.DataBind();
}
protected void gvShip_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
gvShip.PageIndex = e.NewPageIndex;
gvShipBind();
}
protected void gvShip_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int P_Int_ShipID = Convert.ToInt32(gvShip.DataKeys[e.RowIndex].Value.ToString());
mcObj.DeleteShipInfo(P_Int_ShipID);
gvShipBind();
}
public void GetShipInfo()
{
DataSet ds = mcObj.ReturnShipDsByID(Convert.ToInt32(this.Request["ShipID"].ToString()), "ShipInfo");
txtName.Text=ds.Tables["ShipInfo"].Rows[0][1].ToString();
txtPrice.Text =mcObj.VarStr(ds.Tables["ShipInfo"].Rows[0][2].ToString(),2);
}
protected void btnSave_Click(object sender, EventArgs e)
{
if (this.Request.QueryString["Action"] == "Add")
{
if (txtName.Text == "" || txtPrice.Text == "")
{
Response.Write("<script>alert('请输入完整信息')</script>");
return;
}
else
{
if (IsValidInt(txtPrice.Text.Trim()) == false)
{
Response.Write("<script>alert('请正确输入（格式：1.00）！')</script>");
return;
}
else
{
mcObj.InsertShip(txtName.Text.Trim(), float.Parse(txtPrice.Text.Trim()));
Response.Write("<script>alert('插入成功！')</script>");
return;
}
}
}
else if (this.Request.QueryString["Action"] == "Modify")
{
if (txtName.Text == "" || txtPrice.Text == "")
{
Response.Write("<script>alert('请输入完整信息')</script>");
return;
}
else
{
if (IsValidInt(txtPrice.Text.Trim()) == false)
{
Response.Write("<script>alert('请正确输入（格式：1.00）！')</script>");
return;
}
else
{
mcObj.UpdateShip(Convert.ToInt32(this.Request["ShipID"].ToString()),txtName.Text.Trim(),float.Parse (txtPrice.Text.Trim()));
Response.Write("<script>alert('修改成功！')</script>");
return;
}
}
}
}
public bool IsValidInt(string num)
{
return Regex.IsMatch(num, @"^[0-9]+(.[0-9]{2})?$");
}
}
