无法在表单设计器中查看我的表单答案

【问题标题】：Unable to view my form in the form designer无法在表单设计器中查看我的表单
【发布时间】：2016-06-05 18:45:13
【问题描述】：

我在我的 C# 项目中添加了一个新类。非常简单，并且基于我发现的许多示例：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace GENIO_Viewer
{
    class DBTableLayoutPanel : TableLayoutPanel
    {
        public DBTableLayoutPanel() : base()
        {
            DoubleBuffered = true;
        }
    }
}

然后我编辑了设计器类文件以使用修改后的对象（代码删减）：

private void InitializeComponent()
{
    this.tableLayoutPanel = new DBTableLayoutPanel();
    // tableLayoutPanel
    // 
    this.tableLayoutPanel.AutoSize = true;
    this.tableLayoutPanel.BackColor = System.Drawing.Color.Black;
    this.tableLayoutPanel.ColumnCount = 1;
    this.tableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F));
    this.tableLayoutPanel.Cursor = System.Windows.Forms.Cursors.Cross;
    this.tableLayoutPanel.Dock = System.Windows.Forms.DockStyle.Fill;
    this.tableLayoutPanel.Location = new System.Drawing.Point(0, 24);
    this.tableLayoutPanel.Name = "tableLayoutPanel";
    this.tableLayoutPanel.RowCount = 1;
    this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F));
    this.tableLayoutPanel.Size = new System.Drawing.Size(555, 359);
    this.tableLayoutPanel.TabIndex = 4;
}

编译正常。但是当我在编辑器中显示表单时，我遇到了一个问题：

这是为什么？我无法弄清楚我必须做些什么来修复它。

更新：

这是设计器文件的完整表单定义。仅当我注释掉 DBTableLayoutPanel 行并替换为注释掉的行时，它才有效。使困惑。：

using System;

namespace GENIO_Viewer
{
    partial class GENIO_Viewer_Form
    {
        /// <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();

                m_moduleTD_Tb.Dispose();
                m_hostApp.Dispose();
                m_sysSrv.Dispose();

                GC.Collect();
                GC.WaitForPendingFinalizers();
                Teigha.Core.Globals.odgsUninitialize();
                Teigha.Core.Globals.odrxUninitialize();
            }
            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()
        {
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(GENIO_Viewer_Form));
            this.toolStripButton1 = new System.Windows.Forms.ToolStripButton();
            this.statusStrip1 = new System.Windows.Forms.StatusStrip();
            this.toolStripCoordinate = new System.Windows.Forms.ToolStripStatusLabel();
            this.toolStripProgressBar = new System.Windows.Forms.ToolStripProgressBar();
            this.toolStripStatusLabel = new System.Windows.Forms.ToolStripStatusLabel();
            this.toolStripCoordinates = new System.Windows.Forms.ToolStripStatusLabel();
            //this.tableLayoutPanel = new System.Windows.Forms.TableLayoutPanel();
            this.tableLayoutPanel = new GENIO_Viewer.DBTableLayoutPanel();
            this.menuStrip1 = new System.Windows.Forms.MenuStrip();
            this.menuFile = new System.Windows.Forms.ToolStripMenuItem();
            this.menuFile_LoadGenio = new System.Windows.Forms.ToolStripMenuItem();
            this.menuFile_SaveAutoCAD = new System.Windows.Forms.ToolStripMenuItem();
            this.toolStripSeparator1 = new System.Windows.Forms.ToolStripSeparator();
            this.menuFile_RecentFile = new System.Windows.Forms.ToolStripMenuItem();
            this.toolStripSeparator2 = new System.Windows.Forms.ToolStripSeparator();
            this.menuFile_Exit = new System.Windows.Forms.ToolStripMenuItem();
            this.menuView = new System.Windows.Forms.ToolStripMenuItem();
            this.menuViewCodeEditor = new System.Windows.Forms.ToolStripMenuItem();
            this.toolStripSeparator3 = new System.Windows.Forms.ToolStripSeparator();
            this.menuView_ZoomExtents = new System.Windows.Forms.ToolStripMenuItem();
            this.menuView_ZoomWindow = new System.Windows.Forms.ToolStripMenuItem();
            this.toolStrip = new System.Windows.Forms.ToolStrip();
            this.toolStripButton_ZoomWindow = new System.Windows.Forms.ToolStripButton();
            this.toolStripButton_ZoomExtents = new System.Windows.Forms.ToolStripButton();
            this.statusStrip1.SuspendLayout();
            this.menuStrip1.SuspendLayout();
            this.toolStrip.SuspendLayout();
            this.SuspendLayout();
            // 
            // toolStripButton1
            // 
            this.toolStripButton1.Name = "toolStripButton1";
            this.toolStripButton1.Size = new System.Drawing.Size(23, 23);
            // 
            // statusStrip1
            // 
            this.statusStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripCoordinate,
            this.toolStripProgressBar,
            this.toolStripStatusLabel,
            this.toolStripCoordinates});
            this.statusStrip1.Location = new System.Drawing.Point(0, 383);
            this.statusStrip1.Name = "statusStrip1";
            this.statusStrip1.Size = new System.Drawing.Size(555, 22);
            this.statusStrip1.TabIndex = 3;
            this.statusStrip1.Text = "statusStrip";
            // 
            // toolStripCoordinate
            // 
            this.toolStripCoordinate.AutoSize = false;
            this.toolStripCoordinate.Name = "toolStripCoordinate";
            this.toolStripCoordinate.Size = new System.Drawing.Size(200, 17);
            // 
            // toolStripProgressBar
            // 
            this.toolStripProgressBar.AutoSize = false;
            this.toolStripProgressBar.Name = "toolStripProgressBar";
            this.toolStripProgressBar.Size = new System.Drawing.Size(100, 16);
            // 
            // toolStripStatusLabel
            // 
            this.toolStripStatusLabel.AutoSize = false;
            this.toolStripStatusLabel.Name = "toolStripStatusLabel";
            this.toolStripStatusLabel.Size = new System.Drawing.Size(257, 17);
            this.toolStripStatusLabel.Spring = true;
            this.toolStripStatusLabel.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
            // 
            // toolStripCoordinates
            // 
            this.toolStripCoordinates.Name = "toolStripCoordinates";
            this.toolStripCoordinates.Size = new System.Drawing.Size(0, 0);
            // 
            // tableLayoutPanel
            // 
            this.tableLayoutPanel.AutoSize = true;
            this.tableLayoutPanel.BackColor = System.Drawing.Color.LightGray;
            this.tableLayoutPanel.ColumnCount = 1;
            this.tableLayoutPanel.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50F));
            this.tableLayoutPanel.Cursor = System.Windows.Forms.Cursors.Cross;
            this.tableLayoutPanel.Dock = System.Windows.Forms.DockStyle.Fill;
            this.tableLayoutPanel.Location = new System.Drawing.Point(0, 24);
            this.tableLayoutPanel.Name = "tableLayoutPanel";
            this.tableLayoutPanel.RowCount = 1;
            this.tableLayoutPanel.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 50F));
            this.tableLayoutPanel.Size = new System.Drawing.Size(555, 359);
            this.tableLayoutPanel.TabIndex = 4;
            // 
            // menuStrip1
            // 
            this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.menuFile,
            this.menuView});
            this.menuStrip1.Location = new System.Drawing.Point(0, 0);
            this.menuStrip1.Name = "menuStrip1";
            this.menuStrip1.Size = new System.Drawing.Size(555, 24);
            this.menuStrip1.TabIndex = 5;
            this.menuStrip1.Text = "menuStrip1";
            // 
            // menuFile
            // 
            this.menuFile.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.menuFile_LoadGenio,
            this.menuFile_SaveAutoCAD,
            this.toolStripSeparator1,
            this.menuFile_RecentFile,
            this.toolStripSeparator2,
            this.menuFile_Exit});
            this.menuFile.Name = "menuFile";
            this.menuFile.Size = new System.Drawing.Size(37, 20);
            this.menuFile.Text = "&File";
            this.menuFile.DropDownOpening += new System.EventHandler(this.menuFile_DropDownOpening);
            // 
            // menuFile_LoadGenio
            // 
            this.menuFile_LoadGenio.Name = "menuFile_LoadGenio";
            this.menuFile_LoadGenio.Size = new System.Drawing.Size(172, 22);
            this.menuFile_LoadGenio.Text = "Load GENIO File";
            this.menuFile_LoadGenio.Click += new System.EventHandler(this.menuFile_LoadGenio_Click);
            // 
            // menuFile_SaveAutoCAD
            // 
            this.menuFile_SaveAutoCAD.Name = "menuFile_SaveAutoCAD";
            this.menuFile_SaveAutoCAD.Size = new System.Drawing.Size(172, 22);
            this.menuFile_SaveAutoCAD.Text = "Save AutoCAD File";
            this.menuFile_SaveAutoCAD.Click += new System.EventHandler(this.menuFile_SaveAutoCAD_Click);
            // 
            // toolStripSeparator1
            // 
            this.toolStripSeparator1.Name = "toolStripSeparator1";
            this.toolStripSeparator1.Size = new System.Drawing.Size(169, 6);
            // 
            // menuFile_RecentFile
            // 
            this.menuFile_RecentFile.Name = "menuFile_RecentFile";
            this.menuFile_RecentFile.Size = new System.Drawing.Size(172, 22);
            this.menuFile_RecentFile.Text = "Recent File";
            // 
            // toolStripSeparator2
            // 
            this.toolStripSeparator2.Name = "toolStripSeparator2";
            this.toolStripSeparator2.Size = new System.Drawing.Size(169, 6);
            // 
            // menuFile_Exit
            // 
            this.menuFile_Exit.Name = "menuFile_Exit";
            this.menuFile_Exit.Size = new System.Drawing.Size(172, 22);
            this.menuFile_Exit.Text = "E&xit";
            this.menuFile_Exit.Click += new System.EventHandler(this.menuFile_Exit_Click);
            // 
            // menuView
            // 
            this.menuView.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.menuViewCodeEditor,
            this.toolStripSeparator3,
            this.menuView_ZoomExtents,
            this.menuView_ZoomWindow});
            this.menuView.Name = "menuView";
            this.menuView.Size = new System.Drawing.Size(44, 20);
            this.menuView.Text = "&View";
            this.menuView.DropDownOpening += new System.EventHandler(this.menuView_DropDownOpening);
            // 
            // menuViewCodeEditor
            // 
            this.menuViewCodeEditor.Name = "menuViewCodeEditor";
            this.menuViewCodeEditor.Size = new System.Drawing.Size(153, 22);
            this.menuViewCodeEditor.Text = "Code Editor";
            this.menuViewCodeEditor.Click += new System.EventHandler(this.menuViewCodeEditor_Click);
            // 
            // toolStripSeparator3
            // 
            this.toolStripSeparator3.Name = "toolStripSeparator3";
            this.toolStripSeparator3.Size = new System.Drawing.Size(150, 6);
            // 
            // menuView_ZoomExtents
            // 
            this.menuView_ZoomExtents.Name = "menuView_ZoomExtents";
            this.menuView_ZoomExtents.Size = new System.Drawing.Size(153, 22);
            this.menuView_ZoomExtents.Text = "Zoom &Extents";
            this.menuView_ZoomExtents.Click += new System.EventHandler(this.menuView_ZoomExtents_Click);
            // 
            // menuView_ZoomWindow
            // 
            this.menuView_ZoomWindow.Name = "menuView_ZoomWindow";
            this.menuView_ZoomWindow.Size = new System.Drawing.Size(153, 22);
            this.menuView_ZoomWindow.Text = "Zoom &Window";
            this.menuView_ZoomWindow.Click += new System.EventHandler(this.menuView_ZoomWindow_Click);
            // 
            // toolStrip
            // 
            this.toolStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.toolStripButton_ZoomWindow,
            this.toolStripButton_ZoomExtents});
            this.toolStrip.Location = new System.Drawing.Point(0, 24);
            this.toolStrip.Name = "toolStrip";
            this.toolStrip.Size = new System.Drawing.Size(555, 25);
            this.toolStrip.TabIndex = 6;
            this.toolStrip.Text = "toolStrip";
            // 
            // toolStripButton_ZoomWindow
            // 
            this.toolStripButton_ZoomWindow.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
            this.toolStripButton_ZoomWindow.Image = ((System.Drawing.Image)(resources.GetObject("toolStripButton_ZoomWindow.Image")));
            this.toolStripButton_ZoomWindow.ImageTransparentColor = System.Drawing.Color.Magenta;
            this.toolStripButton_ZoomWindow.Name = "toolStripButton_ZoomWindow";
            this.toolStripButton_ZoomWindow.Size = new System.Drawing.Size(23, 22);
            this.toolStripButton_ZoomWindow.Text = "Zoom Window";
            this.toolStripButton_ZoomWindow.Click += new System.EventHandler(this.toolStripButton_ZoomWindow_Click);
            // 
            // toolStripButton_ZoomExtents
            // 
            this.toolStripButton_ZoomExtents.DisplayStyle = System.Windows.Forms.ToolStripItemDisplayStyle.Image;
            this.toolStripButton_ZoomExtents.Image = ((System.Drawing.Image)(resources.GetObject("toolStripButton_ZoomExtents.Image")));
            this.toolStripButton_ZoomExtents.ImageTransparentColor = System.Drawing.Color.Magenta;
            this.toolStripButton_ZoomExtents.Name = "toolStripButton_ZoomExtents";
            this.toolStripButton_ZoomExtents.Size = new System.Drawing.Size(23, 22);
            this.toolStripButton_ZoomExtents.Text = "Zoom Extents";
            this.toolStripButton_ZoomExtents.Click += new System.EventHandler(this.toolStripButton_ZoomExtents_Click);
            // 
            // GENIO_Viewer_Form
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(555, 405);
            this.Controls.Add(this.toolStrip);
            this.Controls.Add(this.tableLayoutPanel);
            this.Controls.Add(this.statusStrip1);
            this.Controls.Add(this.menuStrip1);
            this.Cursor = System.Windows.Forms.Cursors.Default;
            this.DoubleBuffered = true;
            this.MainMenuStrip = this.menuStrip1;
            this.Name = "GENIO_Viewer_Form";
            this.Text = "GENIO Viewer";
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.GENIO_Viewer_Form_FormClosing);
            this.Load += new System.EventHandler(this.GENIO_Viewer_Form_Load);
            this.statusStrip1.ResumeLayout(false);
            this.statusStrip1.PerformLayout();
            this.menuStrip1.ResumeLayout(false);
            this.menuStrip1.PerformLayout();
            this.toolStrip.ResumeLayout(false);
            this.toolStrip.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.ToolStripButton toolStripButton1;
        private System.Windows.Forms.StatusStrip statusStrip1;
        private System.Windows.Forms.ToolStripStatusLabel toolStripStatusLabel;
        private System.Windows.Forms.ToolStripProgressBar toolStripProgressBar;
        //private System.Windows.Forms.TableLayoutPanel tableLayoutPanel;
        private GENIO_Viewer.DBTableLayoutPanel tableLayoutPanel;
        private System.Windows.Forms.MenuStrip menuStrip1;
        private System.Windows.Forms.ToolStripMenuItem menuFile;
        private System.Windows.Forms.ToolStripMenuItem menuView;
        private System.Windows.Forms.ToolStripMenuItem menuView_ZoomExtents;
        private System.Windows.Forms.ToolStripMenuItem menuView_ZoomWindow;
        private System.Windows.Forms.ToolStripMenuItem menuFile_LoadGenio;
        private System.Windows.Forms.ToolStripMenuItem menuFile_SaveAutoCAD;
        private System.Windows.Forms.ToolStrip toolStrip;
        private System.Windows.Forms.ToolStripButton toolStripButton_ZoomWindow;
        private System.Windows.Forms.ToolStripButton toolStripButton_ZoomExtents;
        private System.Windows.Forms.ToolStripStatusLabel toolStripCoordinates;
        private System.Windows.Forms.ToolStripStatusLabel toolStripCoordinate;
        private System.Windows.Forms.ToolStripSeparator toolStripSeparator1;
        private System.Windows.Forms.ToolStripMenuItem menuFile_RecentFile;
        private System.Windows.Forms.ToolStripSeparator toolStripSeparator2;
        private System.Windows.Forms.ToolStripMenuItem menuFile_Exit;
        private System.Windows.Forms.ToolStripMenuItem menuViewCodeEditor;
        private System.Windows.Forms.ToolStripSeparator toolStripSeparator3;
    }
}

更新：当我继承 DataGridView 并设置 DoubleBuffered 时也会发生这种情况。使编辑器无法操作。 ????

【问题讨论】：

您是否尝试过关闭所有设计器，然后清理并重建解决方案并再次打开设计器？
感谢您的建议。它似乎没有解决它。
如果只是简单的清理重建解决方案或者删除bin和obj后重新打开visual studio再重建都没有解决问题，看看这个问题回答Can't view designer when coding a form in C#你可能会发现问题和回答有用。
@RezaAghaei 我似乎也无法通过该链接解决此问题。 :(
该链接不能直接解决问题。但是分享一些关于设计师如何工作的重要而有趣的信息。有了这些信息，通常可以解决设计师的问题。

标签： c# winforms tablelayoutpanel

【解决方案1】：

我遇到了这个问题：

Cannot Place User Control on Form

在其中一个答案中，它谈到了更改构建模式。由于我的应用程序依赖的 DLL 文件，我已将其设置为 x64 位构建模式。如果设置为 Any CPU，我会收到以下构建错误：

//1>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(1820,5): warning MSB3270: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "TD_SwigCoreMgd, Version=4.1.0.0, Culture=neutral, PublicKeyToken=8e28356228e490a2, processorArchitecture=AMD64", "AMD64". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the Configuration Manager so as to align the processor architectures between your project and references, or take a dependency on references with a processor architecture that matches the targeted processor architecture of your project.
//1>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(1820,5): warning MSB3270: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "TD_SwigDbMgd, Version=4.1.0.0, Culture=neutral, PublicKeyToken=5ccc28765cdf0a88, processorArchitecture=AMD64", "AMD64". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the Configuration Manager so as to align the processor architectures between your project and references, or take a dependency on references with a processor architecture that matches the targeted processor architecture of your project.
//1>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets(1820,5): warning MSB3270: There was a mismatch between the processor architecture of the project being built "MSIL" and the processor architecture of the reference "TG_SwigDbMgd, Version=4.1.0.0, Culture=neutral, PublicKeyToken=65e973a5aff9b959, processorArchitecture=AMD64", "AMD64". This mismatch may cause runtime failures. Please consider changing the targeted processor architecture of your project through the Configuration Manager so as to align the processor architectures between your project and references, or take a dependency on references with a processor architecture that matches the targeted processor architecture of your project.

所以我想到将应用程序设置回任何 CPU，进行清理和重建，瞧，我现在可以编辑我的表单了。但是，之后我必须将其设置回 x64。这很烦人。但我没有其他办法。

【讨论】：