gridview 点击删除的话，后台cs文件怎么获取要删除的ID？

[ancestor1]

gridview 点击删除的话，后台cs文件怎么获取要删除的ID？
简而言之，就是gridview 后台怎么获取前台选中的ID啊？

[duwa789]

这样吧。去百度谷歌找一个gridview的使用范例……

[mc_cloudstrife]

protected void del_Click(object sender, EventArgs e)
{
string id=((LinkButton)sender).CommandArgument.ToString();
}

[_老吴]

[Quote=引用 10 楼 ancestor1 的回复:]
引用 5 楼 wuzhengqing1 的回复:
foreach(GridViewRow gvr in GridView.rows)
{
//如果你的ID是绑定在label里的
Label lb=gvr.FindControl("Label1");
//Label1是放在GridView里的ID号lb.text里的值就是你要的
}

<ItemTemplate>
    <%#Eval("ID") %>
</ItemTemplate>
ID绑定在这...
[/Quote]
你的 GridView的数据源是自动绑定还是手动绑定的?
如果这样的话你可以放个隐藏域,将值赋给隐藏域,然后循环来来取

[waiwai1015]

gridview 编辑，删除，更新的用法
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridViewUp.aspx.cs" Inherits="gridview_GridViewUp" %>

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" AllowPaging="True" PageSize="12" OnRowCancelingEdit="GridView1_RowCancelingEdit"
OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" OnRowDeleting="GridView1_RowDeleting"
[color=#800000]DataKeyNames="id,name" [/color] OnPageIndexChanging="GridView1_PageIndexChanging" DataMember="card,price" OnRowDataBound="GridView1_RowDataBound" GridLines="None">
<Columns>
<asp:BoundField HeaderText="身份证号" DataField="card" Visible=false />
<asp:BoundField HeaderText="编号" DataField="id" ReadOnly="True" />
<asp:BoundField DataField="name" HeaderText="姓名" ReadOnly="True" />
<asp:TemplateField HeaderText="身份证号">
<ItemTemplate>
<%# eval_r("card") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TBCard" Text='<%# eval_r("card") %>' runat="server" Width="140px" />
</EditItemTemplate>
<ItemStyle Width="150px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="学历">
<ItemTemplate>
<%# eval_r("description")%>
</ItemTemplate>
<EditItemTemplate>
<asp:HiddenField ID="HDFXueli" runat="server" Value='<%# eval_r("xueli") %>' />
<asp:DropDownList ID="DDLXueli" runat="server" Width="90px" />
</EditItemTemplate>
<ItemStyle Width="100px" />
</asp:TemplateField>
<asp:TemplateField HeaderText="价格">
<ItemTemplate>
<%# eval_r("price") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TBPrice" Text='<%# eval_r("price") %>' runat="server" Width="90px" />
</EditItemTemplate>
<ItemStyle Width="100px" />
</asp:TemplateField>
<asp:BoundField HeaderText="建立时间" DataField="createdate" ReadOnly="True" />
<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" HeaderText="操作" />
</Columns>
<PagerSettings FirstPageText="" LastPageText="" NextPageText="" PreviousPageText="" />
<RowStyle Height="20px" BackColor="#F7F6F3" ForeColor="#333333" />
<FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<EditRowStyle BackColor="#999999" />
<SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
<PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
<HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
<AlternatingRowStyle BackColor="White" ForeColor="#284775" />
</asp:GridView>

GridViewUp.aspx.cs文件代码：


public partial class gridview_GridViewUp : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridViewBind();
}
}

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridViewBind();
}

private void GridViewBind()
{
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
string SqlStr = "Select a.*,b.description FROM test01 a,xueli b where a.xueli=b.code and a.id<1000 and a.id>200";
DataSet ds = new DataSet();

try
{
SqlConnection conn = new SqlConnection(connStr);
if (conn.State.ToString() == "Closed") conn.Open();
SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
da.Fill(ds, "test01");
if (conn.State.ToString() == "Open") conn.Close();

GridView1.DataSource = ds.Tables[0].DefaultView;
GridView1.DataBind();
}
catch (Exception ex)
{
Response.Write("数据库错误，错误原因：" + ex.Message);
Response.End();
}
}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (((DropDownList)e.Row.FindControl("DDLXueli")) != null)
{
DropDownList ddlxueli = (DropDownList)e.Row.FindControl("DDLXueli");

// 生成 DropDownList 的值，绑定数据
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
string SqlStr = "Select * from xueli";
DataSet ds = new DataSet();

SqlConnection conn = new SqlConnection(connStr);
if (conn.State.ToString() == "Closed") conn.Open();
SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
da.Fill(ds, "xueli");
if (conn.State.ToString() == "Open") conn.Close();

ddlxueli.DataSource = ds.Tables[0].DefaultView;
ddlxueli.DataTextField = "description";
ddlxueli.DataValueField = "code";
ddlxueli.DataBind();
//

// 选中 DropDownList
ddlxueli.SelectedValue = ((HiddenField)e.Row.FindControl("HDFXueli")).Value;
//
}
}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
GridViewBind();
}
protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
GridViewBind();
}

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
string card = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBCard")).Text;
string xueli = ((DropDownList)GridView1.Rows[e.RowIndex].FindControl("DDLXueli")).SelectedValue;
string price = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("TBPrice")).Text;

string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
string SqlStr = "update test01 set card='" + card + "',xueli='" + xueli + "',price='" + price + "' where id=" + id;

try
{
SqlConnection conn = new SqlConnection(connStr);
if (conn.State.ToString() == "Closed") conn.Open();
SqlCommand comm = new SqlCommand(SqlStr, conn);
comm.ExecuteNonQuery();
comm.Dispose();
if (conn.State.ToString() == "Open") conn.Close();

GridView1.EditIndex = -1;
GridViewBind();
}
catch (Exception ex)
{
Response.Write("数据库错误，错误原因：" + ex.Message);
Response.End();
}
}

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
string id = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
string connStr = ConfigurationManager.ConnectionStrings["ConnString"].ConnectionString;
string SqlStr = "delete from test01 where id=" + id;

try
{
SqlConnection conn = new SqlConnection(connStr);
if (conn.State.ToString() == "Closed") conn.Open();
SqlCommand comm = new SqlCommand(SqlStr, conn);
comm.ExecuteNonQuery();
comm.Dispose();
if (conn.State.ToString() == "Open") conn.Close();

GridView1.EditIndex = -1;
GridViewBind();
}
catch (Exception ex)
{
Response.Write("数据库错误，错误原因：" + ex.Message);
Response.End();
}
}
}

sql server2000生成表代码：
Create TABLE [dbo].[test01] (
[id] [decimal](18, 0) IDENTITY (1, 1) NOT NULL ,
[name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[card] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[xueli] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
[price] [decimal](18, 0) NULL ,
[createdate] [datetime] NULL
) ON [PRIMARY]
GO

Alter TABLE [dbo].[test01] ADD
CONSTRAINT [DF_test01_createdate] DEFAULT (getdate()) FOR [createdate],
CONSTRAINT [PK_test01] PRIMARY KEY CLUSTERED
(
[id]
) ON [PRIMARY]
GO


Create TABLE [dbo].[xueli](
[id] [int] IDENTITY(1,1) NOT NULL,
[code] [int] NULL,
[description] [nvarchar](50) COLLATE Chinese_PRC_CI_AS NULL,
CONSTRAINT [PK_xueli] PRIMARY KEY CLUSTERED
(
[id] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

[qydvip]

protected void gvFList_RowCommand(object sender, GridViewCommandEventArgs e)
{
int id = Convert.ToInt32(e.CommandArgument)
string name = e.CommandName
if(name==delete)
{
//删除方法
//绑定方法
}

}

[上官云峰]

现在gridview属性上设置DataKeys 例如id,name
//删除操作
protected void LinkButton10_Click(object sender, EventArgs e)
{

Control col = sender as Control;
int index = ((GridViewRow)col.Parent.Parent).RowIndex;
int id = int.Parse(GridView1.DataKeys[index].Values[0].ToString());
string strsqq = "delete from gh_sys where gh_id=" + id;

}

[jenny0810]

2# 16#两种方法都行

[liuzhanjun11]

楼主弄好了没？ 没的话我这里有答案了

[wanghuadong]

if(commandName="delete")
string id = e.CommandArgument.ToString();
ExectSql(id);

[liuzhanjun11]

.aspx页面：
在gridview 中放入 <asp:LinkButton ID="LinkButton1" runat="server" CommandName="tuihui" CommandArgument='<%# Eval("ID") %>'>退回
cs文件:
protected void Gridview1_ItemCommand(object source, DataListCommandEventArgs e)
{
switch (e.CommandName)
{
case "tuihui":
Response.Write(e.CommandArgument);
break;

}
}

[杨溪有炘鑫]

前台代码
<asp:TemplateField HeaderText="操作">
<ItemTemplate>
<asp:LinkButton ID="btnDelete" runat="server" CausesValidation="false" CommandName="delete"
OnClientClick="return confirm('您确定要删除吗？')" Text="删除"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>


后台


protected void gvMessageBoard_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int Id = Convert.ToInt32(this.gvMessageBoard.DataKeys[e.RowIndex].Value.ToString());

if (manager.MessageBoardDelete(Id))
{
BindGrid();
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('删除成功')</script>");

}
else
{
this.Page.ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('删除失败')</script>");
}
}


记得在gridview 属性里面加上这个 DataKeyNames="MId"

[vconan]

好多正解

[xiangqianxi]

[Quote=引用 5 楼 wuzhengqing1 的回复:]
foreach(GridViewRow gvr in GridView.rows)
{
//如果你的ID是绑定在label里的
Label lb=gvr.FindControl("Label1");
//Label1是放在GridView里的ID号lb.text里的值就是你要的
}
[/Quote]

顶这个

[皓月明]

datekeys获取

[zp63534036]

//绑定ID
<asp:TemplateField HeaderText="ID" Visible="False">
<ItemTemplate>
<asp:Label ID="lblID" runat="server" Text='<%# Eval("ID") %>'></asp:Label>
</ItemTemplate>

//获取ID
int ID = int.Parse((GridView1.Rows[e.RowIndex].FindControl("lblID") as Label).Text);

[guozhaoyou1]

这个帖子跟你的内容一样
有答案
http://topic.csdn.net/u/20100115/15/d4c41926-9e50-4fe7-8030-96d0d59b01b9.html

[灵雨飘零]

在 GridView1_RowCommand中获取主键的值：

protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
int OrderId = Convert.ToInt32(GridView1.DataKeys[Convert.ToInt32(e.CommandArgument)].Value);}

在 GridView1_PageIndexChanging中获取主键的值

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
int index=GridView1.DataKeys[e.NewPageIndex].Value;
}

在 GridView1_RowDeleting中获取主键的值
protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index=GridView1.DataKeys[e.RowIndex].Value;
}

在 GridView1_RowEditing中获取主键的值
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
int index = GridView1.DataKeys[e.NewEditIndex].Value;
}

在 GridView1_RowUpdating中获取主键的值

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int index = GridView1.DataKeys[e.RowIndex].Value;
}

在 GridView1_RowDataBound中获取主键的值
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
int index = GridView1.DataKeys[e.Row.RowIndex].Value;
}

[zhoulihong_1986]

设置主键值

[xenophane]

前台

                                   <asp:TemplateField HeaderText="操作" ItemStyle-HorizontalAlign="Center">
                                            <ItemTemplate>
                                                <asp:LinkButton runat="server" ID="lb_deleteInfo" CommandArgument='<%#Eval("ArticleId") %>'
                                                    CommandName="deleteinfo" Text="删除" OnClientClick="javascript:return confirm('确定删除信息吗?');" />
                                            </ItemTemplate>
                                        </asp:TemplateField>

后台

        protected void GV_article_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            if (e.CommandName == "deleteinfo")
            {
                int nId = int.Parse(e.CommandArgument.ToString());
                BLL.Article.Delete(nId);
            }
            BindData(condition);
        }

[zhulong1111]

[Quote=引用 36 楼 xenophane 的回复:]
前台
HTML code<asp:TemplateFieldHeaderText="操作" ItemStyle-HorizontalAlign="Center"><ItemTemplate><asp:LinkButtonrunat="server" ID="lb_deleteInfo" CommandArgument='<%#Eval("ArticleId")%>'
CommandName="deleteinfo" Text="删除" OnClientClick="javascript:return confirm('确定删除信息吗?');" /></ItemTemplate></asp:TemplateField>
后台
C# codeprotectedvoid GV_article_RowCommand(object sender, GridViewCommandEventArgs e)
{if (e.CommandName=="deleteinfo")
{int nId=int.Parse(e.CommandArgument.ToString());
BLL.Article.Delete(nId);
}
BindData(condition);
}
[/Quote]mark