Asp.net 如何在C中取消选中WebDataGrid中的标题复选框#

我有一个WebDataGrid和一个UnboundCheckBoxField列。我希望能够从代码隐藏中选中和取消选中标题中的复选框，从而选择或取消选择所有项目。

---

有WebDataGrid1.Columns[“IsActive”]。标头，但没有我可以设置的值。

您的方法是正确的，只需将列强制转换为

UnboundCheckBoxField

并使用

HeaderChecked

属性即可

代码片段（C#）：

protected void button1_Click(object sender, EventArgs e)
{
    UnboundCheckBoxField checkboxField = (WebDataGrid1.Columns[0] as UnboundCheckBoxField);

    checkboxField.HeaderChecked = !checkboxField.HeaderChecked;
}

<ig:WebDataGrid ID="WebDataGrid1" runat="server" Height="350px" Width="400px" AutoGenerateColumns="False" DataSourceID="SqlDataSource1">
<Columns>
    <ig:UnboundCheckBoxField Key="Check" HeaderChecked="true" Width="25px" />
    ...
</Columns>
<Behaviors>
    <ig:EditingCore>
        <Behaviors>
            <ig:CellEditing>
            </ig:CellEditing>
        </Behaviors>
    </ig:EditingCore>
</Behaviors>

代码片段（aspx）：

protected void button1_Click(object sender, EventArgs e)
{
    UnboundCheckBoxField checkboxField = (WebDataGrid1.Columns[0] as UnboundCheckBoxField);

    checkboxField.HeaderChecked = !checkboxField.HeaderChecked;
}

<ig:WebDataGrid ID="WebDataGrid1" runat="server" Height="350px" Width="400px" AutoGenerateColumns="False" DataSourceID="SqlDataSource1">
<Columns>
    <ig:UnboundCheckBoxField Key="Check" HeaderChecked="true" Width="25px" />
    ...
</Columns>
<Behaviors>
    <ig:EditingCore>
        <Behaviors>
            <ig:CellEditing>
            </ig:CellEditing>
        </Behaviors>
    </ig:EditingCore>
</Behaviors>

...

Gif:

protected void button1_Click(object sender, EventArgs e)
{
    UnboundCheckBoxField checkboxField = (WebDataGrid1.Columns[0] as UnboundCheckBoxField);

    checkboxField.HeaderChecked = !checkboxField.HeaderChecked;
}

<ig:WebDataGrid ID="WebDataGrid1" runat="server" Height="350px" Width="400px" AutoGenerateColumns="False" DataSourceID="SqlDataSource1">
<Columns>
    <ig:UnboundCheckBoxField Key="Check" HeaderChecked="true" Width="25px" />
    ...
</Columns>
<Behaviors>
    <ig:EditingCore>
        <Behaviors>
            <ig:CellEditing>
            </ig:CellEditing>
        </Behaviors>
    </ig:EditingCore>
</Behaviors>