请帮忙,我已经在gridview中添加了更新/编辑命令按钮,以便更新我的sql服务器数据库中的数据,但我无法做到这一点。数据不在数据库中更新。 onrowupdate ======代码======================================== protected void gRowUpdate(object sender,GridViewUpdateEventArgs e) Books b = null; b = new Books(); DataTable dt = null; GridView g =(GridView)发件人; 尝试 {dt = new DataTable(); b = new Books(); b.author = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Author”)); b.bookID = Convert.ToInt32(g.Rows [e.RowIndex] .FindControl(“BookID”)); b.title = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Title”)); b.price = Convert.ToDouble(g.Rows [e.RowIndex] .FindControl(“Price”)); // b.rec = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Date_of_reciept”)); b.ed = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.bill = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.cre_by = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.src = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.pages = Convert.ToInt32(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.pub = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.mod_by = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.remark = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); // b.year = Convert.ToString(g.Rows [e.RowIndex] .FindControl(“Edition”)); b.updatebook(b); g.EditIndex = -1; g.EditIndex = -1; dt = b.GetAllBooks(); g.DataSource = dt; g.DataBind(); (例外) } catch(例外ex) throw(ex);( ) } finally { b = null; }无法更新gridview
} ===================我的更新书存储过程能够通过exec在sqlserver mgmt studio中更新数据库======= =================== 集ANSI_NULLS ON 设定QUOTED_IDENTIFIER ON 去
ALTER PROCEDURE [DBO]。[usp_updatebook] @bookid BIGINT, @author VARCHAR(50), @title VARCHAR(50), @price BIGINT, @src_equisition VARCHAR(50), @bill_no VARCHAR(50), @publisher VARCHAR( 50) @pages BIGINT, @remark VARCHAR(50), @edition VARCHAR(50), @created_by VARCHAR(50), @modified_by VARCHAR(50) /@date_of_reciept日期时间, @year_of_publication日期时间/ AS 声明 @modified_on datetime
集@ modified_on = GETDATE()
UPDATE书
SET
作者= @作家, 标题= @标题, 价格= @价格,
src_equisition = @ src_equisition , bill_no = @ bill_no, publisher = @ publisher, /Date_of_reciept = @ date_of_reciept,/ 页= @页面, 此言= @此言一出, 版= @版, /Year_of_publication = @ year_of_publication,/
CREATED_BY = @ CREATED_BY, modified_on = @ modified_on, modified_by = @ modified_by
WHERE bookid = @ bookid ========================类库函数更新============= =======
public void updatebook(Books b)
{
DataAccess dbAccess = null;
SqlCommand cmd = null;
try
{
dbAccess = new DataAccess();
cmd = dbAccess.GetSQLCommand("usp_updatebook", CommandType.StoredProcedure);
cmd.Parameters.Add("@bookid", SqlDbType.VarChar, 50).Value = b.bookID;
cmd.Parameters.Add("@author", SqlDbType.VarChar, 50).Value = b.author;
cmd.Parameters.Add("@title", SqlDbType.VarChar, 50).Value = b.title;
cmd.Parameters.Add("@price", SqlDbType.Money).Value = b.price;
cmd.Parameters.Add("@publisher", SqlDbType.VarChar, 50).Value = b.pub;
// cmd.Parameters.Add("@year_of_publication", SqlDbType.DateTime).Value =Convert.ToDateTime(b.year);
cmd.Parameters.Add("@src_equisition", SqlDbType.VarChar, 50).Value = b.src;
cmd.Parameters.Add("@bill_no", SqlDbType.VarChar, 50).Value = b.bill;
cmd.Parameters.Add("@remark", SqlDbType.VarChar, 50).Value = b.remark;
cmd.Parameters.Add("@pages", SqlDbType.Int).Value = b.pages;
cmd.Parameters.Add("@edition", SqlDbType.VarChar, 50).Value = b.ed;
// cmd.Parameters.Add("@date_of_reciept", SqlDbType.DateTime).Value = Convert.ToDateTime(b.rec);
// cmd.Parameters.Add("@created_on", SqlDbType.DateTime).Value = Convert.ToDateTime(b.cre_on);
cmd.Parameters.Add("@created_by", SqlDbType.VarChar, 50).Value = b.cre_by;
//cmd.Parameters.Add("@modified_on", SqlDbType.DateTime).Value = Convert.ToDateTime(b.mod_on);
cmd.Parameters.Add("@modified_by", SqlDbType.VarChar, 50).Value = b.mod_by;
cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
throw (ex);
}
finally
{
if (cmd.Connection != null && cmd.Connection.State == ConnectionState.Open)
cmd.Connection.Close();
dbAccess = null;
cmd = null;
}
}
我还试图通过以下保护无效gv1_updating(对象发件人,GridViewUpdateEventArgs E) { 的GridView G =(GridView的)发送器方式 做更新; abc a = new abc(); DataTable dt = new DataTable(); 尝试 {
a.cd_Id = Convert.ToInt32(g.DataKeys[e.RowIndex].Values[0].ToString());
//TextBox b = (TextBox)g.Rows[e.RowIndex].Cells[0].FindControl("cd_id");
TextBox c = (TextBox)g.Rows[e.RowIndex].Cells[2].FindControl("cd_name");
TextBox d = (TextBox)g.Rows[e.RowIndex].Cells[3].FindControl("version");
TextBox f = (TextBox)g.Rows[e.RowIndex].Cells[4].FindControl("company");
TextBox h = (TextBox)g.Rows[e.RowIndex].Cells[6].FindControl("created_by");
TextBox i = (TextBox)g.Rows[e.RowIndex].Cells[8].FindControl("modified_by");
//a.cd_Id = Convert.ToInt32(b.Text);
a.cd_name = c.Text;
a.ver = d.Text;
a.comp = f.Text;
a.cre_by = h.Text;
a.mod_by = i.Text;
a.updateDigi(a);
g.EditIndex = -1;
dt = a.GetAllDigi();
g.DataSource = dt;
g.DataBind();
}
catch(Exception ex)
{
throw (ex);
}
finally
{
dt = null;
a = null;
g = null;
}
}
===================但有指数的误差超出范围的异常=========
请不要回复,thanxs提前
感谢您的回复,我试图通过更改索引,但仍然有相同error.Can你只需粘贴一个小例如gridview更新的代码。在第一个方法上面没有错误发生,但数据库不更新。实际上没有值从gridview单元格中读取。急需它作为最后一年项目的一部分。非常感谢你的回复 – bhakti 2010-04-09 17:26:36