如何以编程方式在flowlayoutpanel中插入控件 [英] How to programatically insert a control in a flowlayoutpanel

问题描述

我想根据条件声明添加它



我尝试过：



flowLayoutPanel1.Controls.Add（控制名称）;

I want to add it based on a conditional statement

What I have tried:

flowLayoutPanel1.Controls.Add(control name);

推荐答案

你必须首先以编程方式创建控件。

示例：

Hi,

you must first create the control programmatically.
Example:

var txt = new TextBox();
txt.name = "myNewTextBox";

然后你可以将它添加到你的flowLayoutPanel：

Then you can add it to your flowLayoutPanel:

flowLayoutPanel1.Controls.Add(txt);

注意：您不能使用在代码中引用该TextBox this.myNewTextBox 。 您需要保存对它的引用（全局变量或全局字典吗？）或从flowLayoutPanel1.Controls获取它的引用。您可能还需要处理文本框的名称：如果添加两个文本框对于你的flowLayoutPanel具有相同的名称，WinForm将为最后添加的一个名称分配一个不同的名称（myNewTextBox1？）。

示例：

Note: you cannot then refer to that TextBox in your code with this.myNewTextBox. You need to either save a reference to it (global variable or global dictionary?) or get its reference from flowLayoutPanel1.Controls. You may also need to handle the names of the textboxes: if you add two textboxes to your flowLayoutPanel with the same name, WinForm will assign the last added one a different name ("myNewTextBox1" ?).
Example:

flowLayoutPanel1.Controls["myNewTextBox"].Text = "Hi!";

处理添加到FlowLayoutPanel的元素

如前所述，您需要管理文本框的名称（例如，通过使用计数器），然后在代码中检索TextBoxes FlowLayoutPanel.Controls 数组中的名称或索引。



示例：

Handle Elements added to FlowLayoutPanel
As previously stated, you need to manage the name of textboxes (for instance, by using a counter) and then retrieve the TextBoxes in code knowing either the name or their index in the FlowLayoutPanel.Controls array.

Examples:

//I have 10 textboxes in my flowlayoutpanel and want to access the third one:
var txt3 = myFlowLayoutPanel.Controls[2];

//I want to refer to the textbox named "mySpecialTextBox"
var txtSpecial = myFlowLayoutPanel.Controls["mySpecialTextBox"]

附注：如有疑问，请咨询MSDN。在这种特殊情况下，请此处。

希望这会有所帮助。



LG

Side note: when in doubt, consult MSDN. In this particular case go here.
Hope this helps.

LG

非常感谢你。这对我帮助很大。我现在唯一的问题是如何设置新添加的控件的属性

Thank you so much. It helped me alot. The only problem i have it now is how to set the properties of the newly added control

如何识别添加到flowControlPanel的每个控件

How do i identify each of the controls added to the flowControlPanel

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