从C＃中的另一个表单调用ComboBox [英] Call ComboBox from another form in C#

问题描述

我有2个表单 - Form1和Form2，Form1有ComboBox，Form2属性有FormBorderStyle作为FixedToolWindow。我需要从Form2调用ComboBox，我该怎么办？

I have 2 forms - Form1 and Form2, Form1 have ComboBox, Form2 property has FormBorderStyle as FixedToolWindow. I need to call ComboBox from Form2, how do I?

推荐答案

如果要访问其他页面中的控件属性，可以使用跨页面发布。有关详细信息，请查看以下链接。

ASP.NET中的回发和跨页面发布 [ ^ ]

If you want to access the control properties in other page you can use cross page posting. For more details check the following link.
Postback and Cross Page Posting in ASP.NET [^]

只需从form1创建一个对象，然后就可以访问ComboBox

form1（）form1_Obj = new Form1（）;

form1_Obj.ComboBox1.SelectedValue = 1;

just create an object from form1 then you can access the ComboBox
form1() form1_Obj = new Form1();
form1_Obj.ComboBox1.SelectedValue= 1;

表单1

Form 1

{
    public Form1()
    {
        ...
    }
    
    public GetCmbBox
    {
        get { return cmbBox; }
        set {cmbBox = value; } 
        }
    }
    
    Button_Click(... ...)
    {
        new Form2(this).Show();
    }
}

表格2

Form 2

{
    Form1 f;
    
    public Form2(Form1 f)
    {
        this.f = f;
        lbl.Text = f.GetCmbBox.SelectedValue.ToString();
    }
}

-KR

-KR

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