选中标题复选框时，选中所有复选框

select all checkbox when header checkbox selected

本文关键字：复选框 标题      更新时间：2023-09-26

当header复选框被选中时，我试图选择所有复选框。

我写了正确的代码，但不知道为什么它不工作。

谁来检查一下这个问题。

我的代码,

    <head runat="server">
    <title></title>
    <script type="text/javascript">
        function SelectAllCheckboxes1(chk) {
            $('#<%=GridView1.ClientID%>').find("input:checkbox").each(function () {
                if (this != chk) { this.checked = chk.checked; }
            });
        }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:gridview ID="GridView1" runat="server" AutoGenerateColumns="False" 
            DataSourceID="SqlDataSource1">
            <Columns>
                <asp:TemplateField>
                    <HeaderTemplate>
                        <asp:CheckBox ID="cbSelectAll" runat="server" onclick="javascript:SelectAllCheckboxes1(this);" AutoPostBack="true"/>    
                    </HeaderTemplate>
                    <ItemTemplate>
                        <asp:CheckBox ID="chk" runat="server" />
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
            </Columns>   
        </asp:gridview>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:HRMSConnectionString %>" 
            SelectCommand="SELECT [Name] FROM [Languages]"></asp:SqlDataSource>
    </div>
    </form>
</body>

试试这个代码-

default.aspx.cs 

protected void sellectAll(object sender, EventArgs e)
{
    CheckBox ChkBoxHeader = (CheckBox)GridView1.HeaderRow.FindControl("chkb1");
    foreach (GridViewRow row in GridView1.Rows)
    {
        CheckBox ChkBoxRows = (CheckBox)row.FindControl("chkb2");
        if (ChkBoxHeader.Checked == true)
        {
            ChkBoxRows.Checked = true;
        }
        else
        {
            ChkBoxRows.Checked = false;
        }
    }
}

更改网格代码-

 <asp:gridview ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataSourceID="SqlDataSource1">
        <Columns>
            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:CheckBox ID="chkb1" runat="server"  AutoPostBack="true" OnCheckedChanged="sellectAll"/>    
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:CheckBox ID="chkb2" runat="server" />
                </ItemTemplate>
            </asp:TemplateField>
            <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" />
        </Columns>   
    </asp:gridview>
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