问题描述
在 Visual Studio 中,如何访问托管用户控件的表单上的控件?例如,当用户控件中的文本框中的文本发生更改时,我希望另一个用户控件中的另一个文本框中的文本发生更改.这两个用户控件都托管在同一个表单上.提前致谢!
In visual studio how do you access a control on a form hosting a user control? For example, when text changes in a text-box in a user control, I want text in another text-box in another user control to change. Both these user controls are hosted on the same form. Thanks in advance!
推荐答案
如果您需要不同的 UI 进行数据输入,我更喜欢有 2 个具有不同 UI 的控件,但我会为它们使用单个数据源并处理场景使用数据绑定.
If you need different UI for data entry, I prefer to have 2 controls with different UI, but I will use a single data source for them and handle the scenario using data-binding.
如果您将两个控件绑定到一个数据源,虽然您可以有不同的 UI,但您有一个数据并且两个控件数据是同步的.
If you bind both controls to a single data source, while you can have different UI, you have a single data and both controls data are sync.
你的问题的答案:
你可以在每个控件中定义一个属性来设置TextBox
的Text
.然后你可以处理TextBox
的TextChanged
事件,然后找到另一个控件并设置text属性:
You can define a property in each control which set Text
of TextBox
. Then you can handle TextChanged
event of the TextBox
and then find the other control and set the text property:
控制1
public partial class MyControl1 : UserControl
{
public MyControl1() { InitializeComponent(); }
public string TextBox1Text
{
get { return this.textBox1.Text; }
set { this.textBox1.Text = value; }
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
if (Parent != null)
{
var control1 = Parent.Controls.OfType<MyControl2>().FirstOrDefault();
if (control1 != null && control1.TextBox1Text != this.textBox1.Text)
control1.TextBox1Text = this.textBox1.Text;
}
}
}
控制2
public partial class MyControl2 : UserControl
{
public MyControl2() { InitializeComponent(); }
public string TextBox1Text
{
get { return this.textBox1.Text; }
set { this.textBox1.Text = value; }
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
if (Parent != null)
{
var control1 = Parent.Controls.OfType<MyControl1>().FirstOrDefault();
if (control1 != null)
control1.TextBox1Text = this.textBox1.Text;
}
}
}
这篇关于如何在用户控件 WinForm 中访问托管表单上的控件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编程学习网!