Winform traversing the window all the controls (in several ways) C # traversing all the controls form or type all controls

 

This link: https://blog.csdn.net/u014453443/article/details/85088733

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C # traversing all the controls form or type all controls

// traverse the form all the controls,
foreach (Control control in this.Controls)
{
// traverse operation after ...
control.Enabled = false;
}

Through all the controls in a panel

foreach (Control control in this.panel4.Controls)
{
control.Enabled = false;
}

Through all the TextBox controls or all types DateTimePicker control

Copy the code
foreach (Control control in this.Controls)
{
　　 // loop through all TextBox ...
if (control is TextBox)
{
TextBox t = (TextBox)control;
t.Enabled = false;
}
　　 // loop through all DateTimePicker ...
if (control is DateTimePicker)
{
DateTimePicker d = (DateTimePicker)control;
d.Enabled = false;
}
}

Bowen mainly controls the following figures to compare the way these two methods to obtain control:

1. The easiest way:

private void GetControls1(Control fatherControl)
{
Control.ControlCollection sonControls = fatherControl.Controls;
// loop through all the controls
foreach (Control control in sonControls)
{
listBox1.Items.Add(control.Name);
}
}

 result:

 

The results are shown in ListBox acquired the right, you can be found not acquired child control Panel, GroupBox, TabControl like control.

2. Increase in the original recursive way:

private void GetControls1(Control fatherControl)
{
Control.ControlCollection sonControls = fatherControl.Controls;
// loop through all the controls
foreach (Control control in sonControls)
{
listBox1.Items.Add(control.Name);
if (control.Controls != null)
{
GetControls1(control);
}
}
}

result:

 

The vast majority of controls are to be acquired, but there are still two controls Timer, ContextMenuStrip not get to.

3. Use reflection (the Reflection)

private void GetControls2(Control fatherControl)
{
//reflection
System.Reflection.FieldInfo[] fieldInfo = this.GetType().GetFields(System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
for (int i = 0; i < fieldInfo.Length; i++)
{
listBox1.Items.Add(fieldInfo[i].Name);
}
}

结果：

 

结果显示所有控件都被获取到了。