求助如何保存gridview模板里checkbox的状态

kkkbbnnn 2010-10-05 08:19:14

前台代码如下：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">



<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

    <title>无标题页</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

      

        

           <asp:GridView ID="GridViewFoodManage" runat="server" 

            AutoGenerateColumns="False" DataKeyNames="FoodID" 

            >

            <Columns>

                <asp:TemplateField HeaderText="是否发布">

                    <EditItemTemplate>

                        <asp:CheckBox ID="CheckBox1" runat="server" />

                    </EditItemTemplate>

                    <ItemTemplate>

                              <asp:CheckBox ID="CheckBox1" runat="server" 

                             />

                    </ItemTemplate>

                </asp:TemplateField>

                <asp:BoundField DataField="FoodName" HeaderText="菜品名称" />

                <asp:BoundField DataField="SupplierID" HeaderText="商家ID" />

                <asp:BoundField DataField="Price" HeaderText="价格" />

                <asp:BoundField DataField="FoodTypeID" HeaderText="菜品种类" />

                <asp:BoundField DataField="Nice" HeaderText="好评数" />

                <asp:BoundField DataField="Bad" HeaderText="差评数" />

                <asp:BoundField DataField="IsPublished" HeaderText="是否发布" />

                <asp:BoundField DataField="IsRecommended" HeaderText="是否推荐" />

            </Columns>

            <EmptyDataTemplate>

                抱歉，没有数据！

            </EmptyDataTemplate>

        </asp:GridView>

        

           <br />

           <asp:Button ID="ButtonApply" runat="server" onclick="ButtonApply_Click" 

               Text="提交" />

    </div>

    </form>

</body>

</html>

后端的是：

public partial class FoodAdmin_FoodAudit : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        

        string connectionstr = ConfigurationManager.ConnectionStrings["Ncepu.iDeal.Wmw.Foods.Data.ConnectionString"].ToString();

        SqlFoodProvider sfp = new SqlFoodProvider(connectionstr, false, "Ncepu.iDeal.Wmw.Foods.Data.SqlClient");

        TList<Food> tfTemp = sfp.GetAll();

        TList<Food> tf = new TList<Food>();

        for (int i = 0; i < tfTemp.Count; i++)

        {

            if (tfTemp[i].IsPublished == 0)

            {

                tf.Add(tfTemp[i]);

            }

            else

            {

                continue;

            }

        }

        GridViewFoodManage.DataSource = tf;

        GridViewFoodManage.DataBind();



    }

    protected void ButtonApply_Click(object sender, EventArgs e)

    {

        for (int i = 0; i < GridViewFoodManage . Rows.Count; i++)

        {

            GridViewRow row = GridViewFoodManage.Rows[i];

            bool isChecked = ((CheckBox)row.FindControl("CheckBox1")).Checked;



            int BoxID = Convert.ToInt32(GridViewFoodManage.DataKeys[GridViewFoodManage.Rows[i].DataItemIndex].Value);

            if (isChecked)

            {

                Response.Write("ok");

            }

          

        }



       

    }

求助啊，如题，每次单击ButtonApply都会刷新页面，使checkbox初始化为未选中，无法Response.Write("ok")，求教怎么解决，急！！！十分感谢！！！

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booth.chen 2010-10-06

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protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack){

string connectionstr = ConfigurationManager.ConnectionStrings["Ncepu.iDeal.Wmw.Foods.Data.ConnectionString"].ToString();
SqlFoodProvider sfp = new SqlFoodProvider(connectionstr, false, "Ncepu.iDeal.Wmw.Foods.Data.SqlClient");
TList<Food> tfTemp = sfp.GetAll();
TList<Food> tf = new TList<Food>();
for (int i = 0; i < tfTemp.Count; i++)
{
if (tfTemp[i].IsPublished == 0)
{
tf.Add(tfTemp[i]);
}
else
{
continue;
}
}
GridViewFoodManage.DataSource = tf;
GridViewFoodManage.DataBind();
}
}

z289830131 2010-10-06

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if(!IsPostBack)
{
BindData();
}

智者知已应修善业 2010-10-06

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http://blog.csdn.net/xianfajushi/archive/2008/11/30/3413317.aspx

Csdbfans 2010-10-05

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protected void ButtonApply_Click(object sender, EventArgs e)
{
for (int i = 0; i < GridViewFoodManage . Rows.Count; i++)
{
GridViewRow row = GridViewFoodManage.Rows[i];
bool isChecked = ((CheckBox)row.FindControl("CheckBox1")).Checked;

int BoxID = Convert.ToInt32(GridViewFoodManage.DataKeys[GridViewFoodManage.Rows[i].DataItemIndex].Value);
if (isChecked)
{
Response.Write("ok");
}

}

}
bool isChecked = ((CheckBox)row.FindControl("CheckBox1")).Checked;
这一句没有出异常的吗？每行的CheckBox控件ID值应该都不是一样的才对的。你可以在那个浏览器里查看那个页面的源文件，可以看到每个CheckBox控件ID值都不会是CheckBox1。
要取CheckBox控件的值应该类似于像

int BoxID = Convert.ToInt32(GridViewFoodManage.DataKeys[GridViewFoodManage.Rows[i].DataItemIndex].Value);
通过主键的方式来取值，当然拉，我忘记那个写法，也不知道你这个写法对不对的。

无乐不作111 2010-10-05

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楼上的吧

fly0804 2010-10-05

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pageload里加if(!IsPostBack)才能进行回调

wuyq11 2010-10-05

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if(!IsPostBack)BindData();
public void BindData(0
{
SqlFoodProvider sfp = new SqlFoodProvider(connectionstr, false, "Ncepu.iDeal.Wmw.Foods.Data.SqlClient");
TList<Food> tfTemp = sfp.GetAll();
....
}