gridview更新不成功 也不报错

Question

表示成：
 protected void grid_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        string chexingid = grid.DataKeys[e.RowIndex].Value.ToString();
        string sucheng = ((TextBox)grid.Rows[e.RowIndex].FindControl("suchengTextBox")).Text;
        string description = ((TextBox)grid.Rows[e.RowIndex].FindControl("descriptionTextBox")).Text;
        string imagefilename = ((TextBox)grid.Rows[e.RowIndex].FindControl("tupianTextBox")).Text;
        bool success = CatalogAccess.UpdateCheXing(chexingid, sucheng, description, imagefilename);
        grid.EditIndex=-1;
        statusLabel.Text=success?"更新成功":"更新失败";
        BindGrid();
    }
------------------------------------------
业务层（CatalogAccess）：
  public static bool UpdateCheXing(string chexingid, string sucheng, string description, string imagefilename)
    {
        SqlCommand comm = GenericDataAccess.CreateCommand();
        comm.CommandText = "UpdateCheXing";
        SqlParameter param = comm.CreateParameter();
        param.ParameterName = "@CheXingID";
        param.Value = "chexingid";
        param.SqlDbType = SqlDbType.Int;
        comm.Parameters.Add(param);
        param = comm.CreateParameter();
        param.ParameterName = "@SuCheng";
        param.Value = "sucheng";
        param.SqlDbType = SqlDbType.VarChar;
        param.Size = 50;
        comm.Parameters.Add(param);
        param = comm.CreateParameter();
        param.ParameterName = "@Description";
        param.Value="description";
        param.SqlDbType = SqlDbType.VarChar;
        param.Size = 2000;
        comm.Parameters.Add(param);
        param = comm.CreateParameter();
        param.ParameterName = "@ImageFileName";
        param.Value = "imagefilename";
        param.SqlDbType = SqlDbType.VarChar;
        param.Size = 50;
        comm.Parameters.Add(param);
        int result = -1;
        try
        {
            result = GenericDataAccess.ExecuteNonQuery(comm);
        }
        catch
        {
            //
        }
        return (result != -1);
-----------------------------------------------
存储过程：
ALTER PROCEDURE UpdateCheXing(
@CheXingID int,
 @SuCheng varchar(50),
@Description varchar(2000),
 @ImageFileName varchar(50))
AS
Update CheXingList 
set Description=@Description,SuCheng=@SuCheng,ImageFileName=@ImageFileName
where CheXingID=@CheXingID
--------------------------------------------------
就是点击编辑，更新后 不成功 vs也不报错 不知道问题出在哪里？太晚了睡觉了 大家帮忙看下~~~~~~

Answer 1

可以设断点看看参数有没有传进来，GenericDataAccess类有没有问题

Answer 2

是不是page_load里面绑定数据的那部分没有包括在if not page.ispostback then ........... end if当中？

Answer 3

你的catch块什么都不做，出了错也不知道什么错，当然不报错catch 
        { 
            // 
        } 
==
catch(Exception ex)
{
  throw ex;
}