如何操作MDI父窗体控件集从子窗体可见的假 [英] how to manipulate mdi parent form control set visible false from child form

问题描述

我想将在mdi父窗体上的图片框的可见性设置为false.我在子窗体上写了以下代码，但没有用...请帮助我

I want to set visibility false of a picturebox that is on mdi parent form. I wrote following code on child form but it doesn''t work...pls help me

private void Bill_Issue_FormClosed(object sender, FormClosedEventArgs e)
        {
            MasterForm f = new MasterForm();
            f.pictureBox1.Visible = true;         
        } 

感谢adv.

Thanks in adv.

推荐答案

您要做的第一件事是通过属性公开父窗体.

例如

以CHILD形式



//在CHILDFORM中创建类型为MDIform的属性
//frmMainMDI

first thing you do is to expose the parent form though properties.

for example

in the CHILD form



//create a properties with the typed of MDIform in CHILDFORM
// frmMainMDI

public frmMainMDI ParentMDI
{
get{return this.ParentForm;}
set{this = value; }

}

以MDI形式这样称呼CHILDFORM

call the CHILDFORM like this in MDI form

frmChild ofrmChild = new frmChild()
ofrmChild.ParentMDI = this;
ofrmChild.show()

在MDIFORM中设置图片框:

setting the picture box in MDIFORM:

ParentMDI.PictureBox.Enable = false;

如果Bill_issue_Form是孩子表格然后尝试

If Bill_issue_Form is a child form then try

private void Bill_Issue_FormClosed(object sender, FormClosedEventArgs e)
        {
            this.ParentForm.pictureBox1.Visible = false;               
        } 

这篇关于如何操作MDI父窗体控件集从子窗体可见的假的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！