GridView中的TemplateField 里嵌入CheckBox事件无法响应
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[已解决问题]
解决于 2013-12-02 16:02
我在GridView中的TemplateField 里添加了CheckBox控件，可是这样没办法触发CheckBox1_CheckedChanged事件，在网上查了一下，有人说吧GridView的EnableViewState设为false才行，设为false后确实能够触发，但是这样会导致页面控件的一些值丢失，可是EnableViewState设为true的话，CheckBox无论怎么点击都是被选的状态，根本没法触发CheckedChanged事件，有什么好的办法吗？
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="Data Source=FENG;Initial Catalog=shopping;Integrated Security=True"
DeleteCommand="DELETE FROM [shoppingcart] WHERE [goods_id] = @goods_id and [username]=@username"
InsertCommand="INSERT INTO [goods] ([information], [image], [price], [goods_id], [goods_name]) VALUES (@information, @image, @price, @goods_id, @goods_name)"
ProviderName="System.Data.SqlClient"
SelectCommand="SELECT [information], [image], [price], [goods_id], [goods_name] FROM [goods] WHERE [goods_id] = @goods_id"
UpdateCommand="UPDATE [goods] SET [information] = @information, [image] = @image, [price] = @price, [goods_name] = @goods_name WHERE [goods_id] = @goods_id">
<SelectParameters>
<asp:Parameter DefaultValue="1" Name="goods_id" Type="Int32" />
</SelectParameters>
<DeleteParameters>
<asp:Parameter Name="goods_id" Type="Int32" />
<asp:SessionParameter Name="username" SessionField="username" />
</DeleteParameters>
<UpdateParameters>
<asp:Parameter Name="information" Type="String" />
<asp:Parameter Name="image" Type="String" />
<asp:Parameter Name="price" Type="Int32" />
<asp:Parameter Name="goods_name" Type="String" />
<asp:Parameter Name="goods_id" Type="Int32" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="information" Type="String" />
<asp:Parameter Name="image" Type="String" />
<asp:Parameter Name="price" Type="Int32" />
<asp:Parameter Name="goods_id" Type="Int32" />
<asp:Parameter Name="goods_name" Type="String" />
</InsertParameters>
</asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
DataKeyNames="goods_id" DataSourceID="SqlDataSource1" Height="229px"
Width="939px" onrowdeleting="GridView1_RowDeleting">
<Columns>
<asp:BoundField DataField="goods_id" HeaderText=""
SortExpression="goods_id" Visible="False" >
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:BoundField>
<asp:TemplateField HeaderText="">
<itemtemplate>
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="True" Checked="True" oncheckedchanged="CheckBox1_CheckedChanged"/>
</itemtemplate>
<FooterStyle HorizontalAlign="Center" VerticalAlign="Middle" />
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="50px" />
</asp:TemplateField>
<asp:ImageField DataImageUrlField="image" HeaderText="图片">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:ImageField>
<asp:BoundField DataField="information" HeaderText="商品"
SortExpression="information" >
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:BoundField>
<asp:BoundField DataField="price" HeaderText="单价" SortExpression="price" ItemStyle-BorderColor="Black">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="70px" />
</asp:BoundField>
<asp:TemplateField HeaderText="数量">
<itemtemplate>
<asp:TextBox ID="TextBox1" runat="server" Text='<%#Eval("amount")%>' Width="3em" CssClass="textbox"></asp:TextBox>
</itemtemplate>
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="70px" />
</asp:TemplateField>
<asp:CommandField HeaderText="操作" ShowDeleteButton="True" >
<ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="70px" />
</asp:CommandField>
</Columns>
<AlternatingRowStyle HorizontalAlign="Center" VerticalAlign="Middle" />
</asp:GridView>
protected void CheckBox1_CheckedChanged(object sender, EventArgs e) { CheckBox checkbox = (CheckBox)sender; if (checkbox.Checked) { total += Convert.ToInt32(GridView1.Rows[GridView1.SelectedIndex].Cells[4].Text) * Convert.ToInt32(((TextBox)(GridView1.Rows[GridView1.SelectedIndex].Cells[5].FindControl("TextBox1"))).Text); } else { total -= Convert.ToInt32(GridView1.Rows[GridView1.SelectedIndex].Cells[4].Text) * Convert.ToInt32(((TextBox)(GridView1.Rows[GridView1.SelectedIndex].Cells[5].FindControl("TextBox1"))).Text); } Label3.Text = "￥" + total.ToString() + ".00"; }
最佳答案
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<itemtemplate>
</itemtemplate>
这个有错误！
我测试了可以的，aspx代码如下：
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:gridview ID="Gridview1" runat="server">
<Columns>
<asp:TemplateField ControlStyle-Height="20">
<ItemTemplate>
<asp:CheckBox ID="chk1" runat="server" oncheckedchanged="chk1_CheckedChanged" AutoPostBack="true"/>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:gridview>
</div>
</form>
</body>
</html>
.cs 代码如下：
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
Gridview1.DataSource = new string[] { "1", "2", "3" };
Gridview1.DataBind();
}
}
protected void chk1_CheckedChanged(object sender, EventArgs e)
{
CheckBox chk = sender as CheckBox;
if (chk != null)
{
((Label)chk.Parent.FindControl("Label1")).Text = chk.Checked.ToString();
}
}
你试试应该能明白到你的代码错在哪里。
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其他回答(1)
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实在不好意思！我刚才试着用服务端控件，对服务端控件，实在不是很熟悉！而且感觉服务端控件，可控性不是特别好，如果你了解页面周期，会发现里面还是蛮复杂的，建议用html标签和javascript配合使用，不过让你一下子完全改变，要考虑项目，所以在asp:CheckBox 加上class，通过javascript获取到选中的checkbox，将值放到hidden这个是设置为runat="server"，在后台获取hidden的值，就行了，不明白的话，给我发消息
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