手动添加时更改 TableLayoutPanel 的颜色
Changing color of TableLayoutPanel when adding manually
我有 2 个 classes：一个表单和一个用户控件。
- 我的表单中有一个默认的流程布局和一个用于将用户控件添加到流程布局的按钮
- 我的用户控件中的 3 行表格布局；
当用户控件初始化时，我应用了某种颜色格式。
当我创建 onLoad 实例时，这种颜色格式工作正常。但是当我为每个按钮添加它时，颜色格式将不适用。
预期： 蓝色 bg 颜色和白色标签颜色
编辑： 找出确切的问题所在。更准确地说；当我点击创建新实例时，tableLayoutPanel1_CellPaint 方法不会被触发。
我在这里错过了什么？
提前致谢
Form1
public partial class Form1 : Form
{
List<UserControl1> listUserControl = new List<UserControl1>();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
listUserControl.Add(new UserControl1(1, "John", 30));
listUserControl.Add(new UserControl1(2, "Chris", 26));
listUserControl.Add(new UserControl1(3, "Alice", 45));
flowLayoutPanel1.Controls.Add(new UserControl1()); // Header column
foreach (UserControl1 userControl1 in listUserControl)
{
flowLayoutPanel1.Controls.Add(userControl1);
}
}
private void buttonAdd_Click(object sender, EventArgs e)
{
flowLayoutPanel1.Controls.Add(new UserControl1()); // Add an extra row
}
}
表格 1 设计师
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
this.buttonAdd = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// flowLayoutPanel1
//
this.flowLayoutPanel1.Location = new System.Drawing.Point(12, 12);
this.flowLayoutPanel1.Name = "flowLayoutPanel1";
this.flowLayoutPanel1.Size = new System.Drawing.Size(327, 99);
this.flowLayoutPanel1.TabIndex = 0;
//
// buttonAdd
//
this.buttonAdd.Location = new System.Drawing.Point(345, 12);
this.buttonAdd.Name = "buttonAdd";
this.buttonAdd.Size = new System.Drawing.Size(82, 99);
this.buttonAdd.TabIndex = 1;
this.buttonAdd.Text = "ADD";
this.buttonAdd.UseVisualStyleBackColor = true;
this.buttonAdd.Click += new System.EventHandler(this.buttonAdd_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(437, 123);
this.Controls.Add(this.buttonAdd);
this.Controls.Add(this.flowLayoutPanel1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.FlowLayoutPanel flowLayoutPanel1;
private System.Windows.Forms.Button buttonAdd;
}
UserControl1 class
public partial class UserControl1 : UserControl
{
Color colorDarkBlue, colorCream, colorLightGray;
SolidBrush brushDarkBlue, brushCream, brushLightGray;
private int id, age;
private string name;
private bool _isHeader = false;
public UserControl1()
{
InitializeColors();
InitializeComponent();
_isHeader = true;
ColorLabels(Color.White);
}
public UserControl1(int id, string name, int age)
{
this.id = id;
this.name = name;
this.age = age;
InitializeColors();
InitializeComponent();
ColorLabels(Color.FromArgb(103, 103, 103));
LoadLabels();
}
private void LoadLabels()
{
labelID.Text = id.ToString();
labelName.Text = name;
labelAge.Text = age.ToString();
}
private void InitializeColors()
{
colorDarkBlue = Color.FromArgb(60, 71, 133);
brushDarkBlue = new SolidBrush(colorDarkBlue);
colorCream = Color.FromArgb(251, 251, 251);
brushCream = new SolidBrush(colorCream);
colorLightGray = Color.FromArgb(242, 242, 242);
brushLightGray = new SolidBrush(colorLightGray);
}
private void ColorLabels(Color color)
{
labelID.ForeColor = color;
labelName.ForeColor = color;
labelAge.ForeColor = color;
}
private void tableLayoutPanel1_CellPaint(object sender, TableLayoutCellPaintEventArgs e)
{
Graphics g = e.Graphics;
Rectangle r = e.CellBounds;
if (_isHeader) /// Set as left header
{
g.FillRectangle(brushDarkBlue, r);
}
else
{
if (e.Row % 2 == 0)
{
g.FillRectangle(brushCream, r);
}
else
{
g.FillRectangle(brushLightGray, r);
}
}
}
}
UserControl1 设计者
partial class UserControl1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
this.labelID = new System.Windows.Forms.Label();
this.labelName = new System.Windows.Forms.Label();
this.labelAge = new System.Windows.Forms.Label();
this.tableLayoutPanel1.SuspendLayout();
this.SuspendLayout();
//
// tableLayoutPanel1
//
this.tableLayoutPanel1.CellBorderStyle = System.Windows.Forms.TableLayoutPanelCellBorderStyle.Single;
this.tableLayoutPanel1.ColumnCount = 1;
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
this.tableLayoutPanel1.Controls.Add(this.labelID, 0, 0);
this.tableLayoutPanel1.Controls.Add(this.labelName, 0, 1);
this.tableLayoutPanel1.Controls.Add(this.labelAge, 0, 2);
this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tableLayoutPanel1.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
this.tableLayoutPanel1.Margin = new System.Windows.Forms.Padding(0);
this.tableLayoutPanel1.Name = "tableLayoutPanel1";
this.tableLayoutPanel1.RowCount = 3;
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.Size = new System.Drawing.Size(50, 65);
this.tableLayoutPanel1.TabIndex = 0;
this.tableLayoutPanel1.CellPaint += new System.Windows.Forms.TableLayoutCellPaintEventHandler(this.tableLayoutPanel1_CellPaint);
//
// labelID
//
this.labelID.AutoEllipsis = true;
this.labelID.BackColor = System.Drawing.Color.Transparent;
this.labelID.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelID.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelID.Location = new System.Drawing.Point(4, 1);
this.labelID.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelID.Name = "labelID";
this.labelID.Size = new System.Drawing.Size(45, 15);
this.labelID.TabIndex = 0;
this.labelID.Text = "ID";
this.labelID.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelID.UseCompatibleTextRendering = true;
//
// labelName
//
this.labelName.AutoEllipsis = true;
this.labelName.BackColor = System.Drawing.Color.Transparent;
this.labelName.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelName.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelName.Location = new System.Drawing.Point(4, 17);
this.labelName.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelName.Name = "labelName";
this.labelName.Size = new System.Drawing.Size(45, 15);
this.labelName.TabIndex = 4;
this.labelName.Text = "Name";
this.labelName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelName.UseCompatibleTextRendering = true;
//
// labelAge
//
this.labelAge.AutoEllipsis = true;
this.labelAge.BackColor = System.Drawing.Color.Transparent;
this.labelAge.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelAge.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelAge.Location = new System.Drawing.Point(4, 33);
this.labelAge.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelAge.Name = "labelAge";
this.labelAge.Size = new System.Drawing.Size(45, 31);
this.labelAge.TabIndex = 5;
this.labelAge.Text = "Age";
this.labelAge.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelAge.UseCompatibleTextRendering = true;
//
// UserControl1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackColor = System.Drawing.Color.White;
this.Controls.Add(this.tableLayoutPanel1);
this.Margin = new System.Windows.Forms.Padding(0);
this.MaximumSize = new System.Drawing.Size(50, 285);
this.Name = "UserControl1";
this.Size = new System.Drawing.Size(50, 65);
this.tableLayoutPanel1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
public System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
public System.Windows.Forms.Label labelID;
public System.Windows.Forms.Label labelAge;
public System.Windows.Forms.Label labelName;
}
经过几个小时的努力，我找到了。
@Jimi在评论中提到的，我都已经尝试过了。 Update()、Invalidate() 和 Refresh() 都不起作用。诀窍是；手动添加控件后，我必须在我的表格布局上调用 SuspendLayout() 和 ResumeLayout(true)。所以;
private void buttonAdd_Click(object sender, EventArgs e)
{
UserControl1 userControl = new UserControl1();
userControl.tableLayoutPanel1.SuspendLayout();
flowLayoutPanel1.Controls.Add(userControl);
userControl.tableLayoutPanel1.ResumeLayout(true);
}
本文来自微软官方文档。 LINK
The layout logic of the control is suspended until the ResumeLayout
method is called.
The SuspendLayout and ResumeLayout methods are used in tandem to
suppress multiple Layout events while you adjust multiple attributes
of the control. For example, you would typically call the
SuspendLayout method, then set the Size, Location, Anchor, or Dock
properties of the control, and then call the ResumeLayout method to
enable the changes to take effect.
There must be no pending calls to SuspendLayout for ResumeLayout to be
successfully called.
我有 2 个 classes：一个表单和一个用户控件。
- 我的表单中有一个默认的流程布局和一个用于将用户控件添加到流程布局的按钮
- 我的用户控件中的 3 行表格布局；
当用户控件初始化时，我应用了某种颜色格式。
当我创建 onLoad 实例时，这种颜色格式工作正常。但是当我为每个按钮添加它时，颜色格式将不适用。
预期： 蓝色 bg 颜色和白色标签颜色
编辑： 找出确切的问题所在。更准确地说；当我点击创建新实例时，tableLayoutPanel1_CellPaint 方法不会被触发。
我在这里错过了什么？
提前致谢
Form1
public partial class Form1 : Form
{
List<UserControl1> listUserControl = new List<UserControl1>();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
listUserControl.Add(new UserControl1(1, "John", 30));
listUserControl.Add(new UserControl1(2, "Chris", 26));
listUserControl.Add(new UserControl1(3, "Alice", 45));
flowLayoutPanel1.Controls.Add(new UserControl1()); // Header column
foreach (UserControl1 userControl1 in listUserControl)
{
flowLayoutPanel1.Controls.Add(userControl1);
}
}
private void buttonAdd_Click(object sender, EventArgs e)
{
flowLayoutPanel1.Controls.Add(new UserControl1()); // Add an extra row
}
}
表格 1 设计师
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
this.buttonAdd = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// flowLayoutPanel1
//
this.flowLayoutPanel1.Location = new System.Drawing.Point(12, 12);
this.flowLayoutPanel1.Name = "flowLayoutPanel1";
this.flowLayoutPanel1.Size = new System.Drawing.Size(327, 99);
this.flowLayoutPanel1.TabIndex = 0;
//
// buttonAdd
//
this.buttonAdd.Location = new System.Drawing.Point(345, 12);
this.buttonAdd.Name = "buttonAdd";
this.buttonAdd.Size = new System.Drawing.Size(82, 99);
this.buttonAdd.TabIndex = 1;
this.buttonAdd.Text = "ADD";
this.buttonAdd.UseVisualStyleBackColor = true;
this.buttonAdd.Click += new System.EventHandler(this.buttonAdd_Click);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(437, 123);
this.Controls.Add(this.buttonAdd);
this.Controls.Add(this.flowLayoutPanel1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.FlowLayoutPanel flowLayoutPanel1;
private System.Windows.Forms.Button buttonAdd;
}
UserControl1 class
public partial class UserControl1 : UserControl
{
Color colorDarkBlue, colorCream, colorLightGray;
SolidBrush brushDarkBlue, brushCream, brushLightGray;
private int id, age;
private string name;
private bool _isHeader = false;
public UserControl1()
{
InitializeColors();
InitializeComponent();
_isHeader = true;
ColorLabels(Color.White);
}
public UserControl1(int id, string name, int age)
{
this.id = id;
this.name = name;
this.age = age;
InitializeColors();
InitializeComponent();
ColorLabels(Color.FromArgb(103, 103, 103));
LoadLabels();
}
private void LoadLabels()
{
labelID.Text = id.ToString();
labelName.Text = name;
labelAge.Text = age.ToString();
}
private void InitializeColors()
{
colorDarkBlue = Color.FromArgb(60, 71, 133);
brushDarkBlue = new SolidBrush(colorDarkBlue);
colorCream = Color.FromArgb(251, 251, 251);
brushCream = new SolidBrush(colorCream);
colorLightGray = Color.FromArgb(242, 242, 242);
brushLightGray = new SolidBrush(colorLightGray);
}
private void ColorLabels(Color color)
{
labelID.ForeColor = color;
labelName.ForeColor = color;
labelAge.ForeColor = color;
}
private void tableLayoutPanel1_CellPaint(object sender, TableLayoutCellPaintEventArgs e)
{
Graphics g = e.Graphics;
Rectangle r = e.CellBounds;
if (_isHeader) /// Set as left header
{
g.FillRectangle(brushDarkBlue, r);
}
else
{
if (e.Row % 2 == 0)
{
g.FillRectangle(brushCream, r);
}
else
{
g.FillRectangle(brushLightGray, r);
}
}
}
}
UserControl1 设计者
partial class UserControl1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
this.labelID = new System.Windows.Forms.Label();
this.labelName = new System.Windows.Forms.Label();
this.labelAge = new System.Windows.Forms.Label();
this.tableLayoutPanel1.SuspendLayout();
this.SuspendLayout();
//
// tableLayoutPanel1
//
this.tableLayoutPanel1.CellBorderStyle = System.Windows.Forms.TableLayoutPanelCellBorderStyle.Single;
this.tableLayoutPanel1.ColumnCount = 1;
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
this.tableLayoutPanel1.Controls.Add(this.labelID, 0, 0);
this.tableLayoutPanel1.Controls.Add(this.labelName, 0, 1);
this.tableLayoutPanel1.Controls.Add(this.labelAge, 0, 2);
this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tableLayoutPanel1.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
this.tableLayoutPanel1.Margin = new System.Windows.Forms.Padding(0);
this.tableLayoutPanel1.Name = "tableLayoutPanel1";
this.tableLayoutPanel1.RowCount = 3;
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 15F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 20F));
this.tableLayoutPanel1.Size = new System.Drawing.Size(50, 65);
this.tableLayoutPanel1.TabIndex = 0;
this.tableLayoutPanel1.CellPaint += new System.Windows.Forms.TableLayoutCellPaintEventHandler(this.tableLayoutPanel1_CellPaint);
//
// labelID
//
this.labelID.AutoEllipsis = true;
this.labelID.BackColor = System.Drawing.Color.Transparent;
this.labelID.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelID.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelID.Location = new System.Drawing.Point(4, 1);
this.labelID.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelID.Name = "labelID";
this.labelID.Size = new System.Drawing.Size(45, 15);
this.labelID.TabIndex = 0;
this.labelID.Text = "ID";
this.labelID.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelID.UseCompatibleTextRendering = true;
//
// labelName
//
this.labelName.AutoEllipsis = true;
this.labelName.BackColor = System.Drawing.Color.Transparent;
this.labelName.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelName.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelName.Location = new System.Drawing.Point(4, 17);
this.labelName.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelName.Name = "labelName";
this.labelName.Size = new System.Drawing.Size(45, 15);
this.labelName.TabIndex = 4;
this.labelName.Text = "Name";
this.labelName.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelName.UseCompatibleTextRendering = true;
//
// labelAge
//
this.labelAge.AutoEllipsis = true;
this.labelAge.BackColor = System.Drawing.Color.Transparent;
this.labelAge.Dock = System.Windows.Forms.DockStyle.Fill;
this.labelAge.Font = new System.Drawing.Font("Calibri", 9.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(162)));
this.labelAge.Location = new System.Drawing.Point(4, 33);
this.labelAge.Margin = new System.Windows.Forms.Padding(3, 0, 0, 0);
this.labelAge.Name = "labelAge";
this.labelAge.Size = new System.Drawing.Size(45, 31);
this.labelAge.TabIndex = 5;
this.labelAge.Text = "Age";
this.labelAge.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
this.labelAge.UseCompatibleTextRendering = true;
//
// UserControl1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.BackColor = System.Drawing.Color.White;
this.Controls.Add(this.tableLayoutPanel1);
this.Margin = new System.Windows.Forms.Padding(0);
this.MaximumSize = new System.Drawing.Size(50, 285);
this.Name = "UserControl1";
this.Size = new System.Drawing.Size(50, 65);
this.tableLayoutPanel1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
public System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
public System.Windows.Forms.Label labelID;
public System.Windows.Forms.Label labelAge;
public System.Windows.Forms.Label labelName;
}
经过几个小时的努力，我找到了。
@Jimi在评论中提到的，我都已经尝试过了。 Update()、Invalidate() 和 Refresh() 都不起作用。诀窍是；手动添加控件后，我必须在我的表格布局上调用 SuspendLayout() 和 ResumeLayout(true)。所以;
private void buttonAdd_Click(object sender, EventArgs e)
{
UserControl1 userControl = new UserControl1();
userControl.tableLayoutPanel1.SuspendLayout();
flowLayoutPanel1.Controls.Add(userControl);
userControl.tableLayoutPanel1.ResumeLayout(true);
}
本文来自微软官方文档。 LINK
The layout logic of the control is suspended until the ResumeLayout method is called.
The SuspendLayout and ResumeLayout methods are used in tandem to suppress multiple Layout events while you adjust multiple attributes of the control. For example, you would typically call the SuspendLayout method, then set the Size, Location, Anchor, or Dock properties of the control, and then call the ResumeLayout method to enable the changes to take effect.
There must be no pending calls to SuspendLayout for ResumeLayout to be successfully called.