Question

Is there anyway to disable a combobox if a different combobox has some sort of text or value in it. I have tried a couple things and can t seem to get it to work.

例

“ComboBox”/

Answer 1

利用选定ValueChanged的 com贝箱1来检查选定的数值。可根据这种方式处置或改装 com箱。

private void combobox1_SelectedValueChanged(object sender, Eventargs e)
{
    if (combobox1.SelectedValue == myDisableValue)
        combobox2.Enabled = false;
    else
        combobox2.Enabled = true;
 }

Answer 2

您可处理。 SelectedValueChanged 2. com子和 com子如果有任何必要价值使对方失去作用,

Answer 3

你们可以在这里看一看。

http://social.msdn.microsoft.com/Forums/en-US/sql reportingservices/thread/04f92630-8c66-4e9d-8c95-22716d86177f”rel=“nofollow”http://social.msdn.microsoft.com/Forums/en-US/sqlreportservices/thread/04f92630-8c66-4e9d-8c95-22716d86f

Answer 4

与此类似,只有确定你想要的任何财产,或者不明确财产,或者任何财产。 (测试船没有数据约束)

    public partial class Form1 : Form
{
    bool fireEvents = true;
    public Form1()
    {
        InitializeComponent();
    }

    private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (fireEvents) doCheck(sender, e);
    }

    private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (fireEvents) doCheck(sender, e);
    }

    private void doCheck(object sender, EventArgs e)
    {
        fireEvents = false; // because we don t have a way to cancel event bubbling
        if (sender == comboBox1)
        {
            comboBox2.SelectedIndex = -1;
        }
        else if (sender == comboBox2)
        {
            comboBox1.SelectedIndex = -1;
        }
        fireEvents = true;
    }

}

友情链接