如何在绑定时根据值检查转发器内的复选框？

发布于 2024-12-20 08:45:17 字数 1006 浏览 3 评论 0原文

我有一个中继器，里面有一个复选框。现在我想根据列值（0/1）检查它。我已经通过中继器的itemDataBound事件尝试过。如果行的值为 1，那么它会做什么，然后它会选中所有复选框，如果第一个复选框未选中，则它会取消选中所有复选框。我的代码是：- `

                    <td align="center">
                        <asp:CheckBox ID="chk" runat="server" />
                    </td>
                </tr>
            </ItemTemplate>
        </asp:Repeater>`

ItemDataBound 事件代码是：-

 protected void rp_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    DataTable dt = new DataTable();
    dt = obj.abc(id);
    if (dt.Rows.Count > 0)
    {
        CheckBox chk = (CheckBox)(e.Item.FindControl("chk"));
        if (chk != null)
        {

            if (Convert.ToInt32(dt.Rows[0]["xyz"]) == Convert.ToInt32("0"))
            {
                chk.Checked = false;
            }
            else
            {
                chk.Checked = true;

            }
        }

    }

}

原文

I have a repeater and inside it i have a checkbox. Now i want to check it according to columns value(0/1). I have tried it through the itemDataBound event of the repeater. what its doing if the rows has value 1 then its checked all checkbox and if first checkbox is unchecked then its unchecked all.
my code is:-
`

                    <td align="center">
                        <asp:CheckBox ID="chk" runat="server" />
                    </td>
                </tr>
            </ItemTemplate>
        </asp:Repeater>`

The ItemDataBound events code is :-

 protected void rp_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    DataTable dt = new DataTable();
    dt = obj.abc(id);
    if (dt.Rows.Count > 0)
    {
        CheckBox chk = (CheckBox)(e.Item.FindControl("chk"));
        if (chk != null)
        {

            if (Convert.ToInt32(dt.Rows[0]["xyz"]) == Convert.ToInt32("0"))
            {
                chk.Checked = false;
            }
            else
            {
                chk.Checked = true;

            }
        }

    }

}

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旧时浪漫 2024-12-27 08:45:17

有很多方法可以做到这一点。

您可以编写内联 ASP.NET：
```
>
```

正如您所提到的，您可以使用 repeater_ItemDataBound 查找每行的复选框，并相应地设置其值：

protected void Repeater_ItemDataBound（对象发送者，RepeaterItemEventArgs e）
{
    人 person = (Person)e.Item; // e.Item 是该行的数据源
    如果（人。已婚） 
    {
        CheckBox isMarried = (CheckBox)(e.Item.FindControl("isMarried"));
        isMarried.Checked = true;
    }
}

另一种方法可能是注入隐藏字段中的布尔状态（此处为婚姻状态）并将其发送到客户端，然后在客户端使用 jQuery（或任何其他 JavaScript 框架）根据隐藏字段的值更新复选框的选中状态字段：

There are many ways to do that.

You can write inline ASP.NET:

<asp:CheckBox id='isMarried' runat='server' 
Checked='<%# Convert.ToBool(Eval("IsMarried")) ? true : false %>' />

As you have mentioned, you can use repeater_ItemDataBound to find the check-box of each row, and set its value accordingly:

protected void repeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
{
    Person person = (Person)e.Item; // e.Item is the datasoruce of the row
    if (person.IsMarried) 
    {
        CheckBox isMarried = (CheckBox)(e.Item.FindControl("isMarried"));
        isMarried.Checked = true;
    }
}

Another way could be to inject the Boolean state (here, the marriage state) in a hidden field and send it to the client, then on client-side, using jQuery (or any other JavaScript framework), update check-boxes' checked state according to the value of those hidden fields:

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