Windows应用程序，更改焦点上的文本框BackColor [英] Windows application, change textbox BackColor on focus

问题描述

在窗体中，我需要更改焦点文本框BackColor 。我想在每个文本框或控件焦点上执行此操作。

说明：当对该文本框的textbox1 BackColor重点进行更改时现在我按标签，焦点转到下一个文本框（textbox2），现在textbox2的BackColor应该改变，textbox1 BackColor应该改回为默认颜色。

我需要回答迫切。任何人都可以帮助我吗？

在此先感谢，

Amit

  //属性声明
 private System.Drawing.Color NormalColor = System.Drawing.Color.FromArgb（50，82，110）; 
 private System.Drawing.Color FocusColor = System.Drawing.Color.FromArgb（42，65，84）; 
 
 //否则在构造函数中
 textBox_Username.Enter + = EnterEvent; 
 textBox_Password.Enter + = EnterEvent; 
 textBox_Username.Leave + = LeaveEvent; 
 textBox_Password.Leave + = LeaveEvent; 
 
 //在构造函数之外
 private void EnterEvent（object sender，EventArgs e）
 {
 if（sender is TextBox）
（（TextBox）发件人）.BackColor = FocusColor; 
 
 $ b private void LeaveEvent（object sender，EventArgs e）
 {
 if（sender is TextBox）
（（TextBox）sender）.BackColor = NormalColor; 
} 
  

In windows form I need to change textbox BackColor on focus. I want to do this on every textbox or control focus.

Description:- When the focus on textbox1 BackColor of this textbox should be changed and now I press tab, focus goes to next textbox (textbox2) now the BackColor of textbox2 should be changes and textbox1 BackColor should be changed back as default color.

I need answer urgently. Can anyone help me please?

Thanks in advance,

Amit

解决方案

Behold the C# solution:

//Properties declaration
private System.Drawing.Color NormalColor = System.Drawing.Color.FromArgb(50, 82, 110);
private System.Drawing.Color FocusColor = System.Drawing.Color.FromArgb(42, 65, 84);

// Else where in the Constructor
textBox_Username.Enter += EnterEvent;
textBox_Password.Enter += EnterEvent;
textBox_Username.Leave += LeaveEvent;
textBox_Password.Leave += LeaveEvent;

// Outside the Constructor
private void EnterEvent(object sender, EventArgs e)
{
    if (sender is TextBox)
        ((TextBox)sender).BackColor = FocusColor;
}

private void LeaveEvent(object sender, EventArgs e)
{
    if (sender is TextBox)
        ((TextBox)sender).BackColor = NormalColor;
}

这篇关于Windows应用程序，更改焦点上的文本框BackColor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！