Question

当复选框在表格行中时，

如何获取复选框

<asp:Table ID="mytbl" runat="server">
</asp:Table>

while (res.Read())
{
    trow = new TableRow();
    tcell1 = new TableCell();
    tcell2 = new TableCell();
    CheckBox ch = new CheckBox();
    ch.CssClass = "chkBox";
    ch.ID = res.GetInt32(1) + "_" + res.GetInt32(2);
    //ch. = res.GetInt32(1) + "_" + res.GetInt32(2);
    values.Add(res.GetInt32(1) + "_" + res.GetInt32(2));
    tcell1.Controls.Add(ch);
    tcell2.Text = res.GetString(0);
    trow.Cells.Add(tcell1);
    trow.Cells.Add(tcell2);
    mytbl.Rows.Add(trow);    
}

我想检查复选框已选中并将结果保存在数据库中

Answer 1

据我所知，您希望在表中检查哪些复选框，然后根据您要对该已检查记录执行某些操作。

为此，您可以循环查看是否选中复选框。

HtmlTable table = (HtmlTable)Page.FindControl("mytbl");
foreach (HtmlTableRow row in table.Rows)
{
    foreach (HtmlTableCell cell in row.Cells)
    {
        foreach (Control c in cell.Controls)
        {
            if (c is CheckBox && ((CheckBox)c).Checked) 
            {
                //do some operation here
            }
        }
    }
}

输出：

Answer 2

看一下下面的例子。我没有访问你的数据库，所以我改变了我填充表格的方式，只是为了让它工作，但当你点击Save按钮的逻辑循环遍历表格，让我们评估复选框（如果已选中或未选中）：

代码背后：

protected void Page_Load(object sender, EventArgs e)
{
    TableRow row1 = this.CreateRow("checkBox1", "chkBox", "Row 1");
    TableRow row2 = this.CreateRow("checkBox2", "chkBox", "Row 2");

    mytbl.Rows.Add(row1);
    mytbl.Rows.Add(row2);
}

private TableRow CreateRow(string id, string css, string text)
{
    var row = new TableRow();
    var cell1 = new TableCell();
    var cell2 = new TableCell { Text = text };
    var checkBox = new CheckBox
    {
        CssClass = css,
        ID = id
    };
    cell1.Controls.Add(checkBox);
    row.Cells.Add(cell1);
    row.Cells.Add(cell2);
    return row;
}

protected void btnSave_Click(object sender, EventArgs e)
{
    foreach (TableRow row in mytbl.Rows)
    {
        CheckBox checkBox = row.Cells[0].Controls[0] as CheckBox;
        string rowText = row.Cells[1].Text;

        if(checkBox.Checked)
        {
            //Perform further processing
        }
    }
}

<强> .ASPX：

<form runat="server">
    <asp:table id="mytbl" runat="server"></asp:table>
    <asp:button id="btnSave" runat="server" text="Save" OnClick="btnSave_Click" />
</form>

当复选框位于表格行

2 个答案: