I have a base form in another project that enforces the same look & feel to all our WinForms programs. I inherited from that BaseForm, to create my own template, BaseView. This template of mine has additional controls like a ProgressBar, a Timer and a TableLayoutPanel.
I now want to inherit from my BaseView and use the Designer to add my program-specific controls, however I cannot drop anything like Panels or any other Controls into it. I have tried some suggestions, like making sure the base form's components are public, but to no avail - most of the TLP's properties are still grayed out.
Could someone perhaps give me any suggestions? Many Thanks!
partial class BaseView
{
/// <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.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(BaseView));
this.tableLayoutPanel_Form = new System.Windows.Forms.TableLayoutPanel();
this.panel_Buttons = new System.Windows.Forms.Panel();
this.panel_MainBody = new System.Windows.Forms.Panel();
this.progressBar = new System.Windows.Forms.ProgressBar();
this.timer_ProgressBar = new System.Windows.Forms.Timer(this.components);
this.tableLayoutPanel_Form.SuspendLayout();
this.SuspendLayout();
//
// lblFormId
//
this.lblFormId.AutoSize = false;
this.lblFormId.Location = new System.Drawing.Point(390, 9);
this.lblFormId.Size = new System.Drawing.Size(98, 13);
this.lblFormId.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// btnClose
//
this.btnClose.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btnClose.DialogResult = System.Windows.Forms.DialogResult.Cancel;
this.btnClose.Location = new System.Drawing.Point(447, 5);
this.btnClose.Size = new System.Drawing.Size(41, 21);
this.btnClose.TabIndex = 4;
//
// tableLayoutPanel_Form
//
this.tableLayoutPanel_Form.ColumnCount = 1;
this.tableLayoutPanel_Form.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
this.tableLayoutPanel_Form.Controls.Add(this.panel_Buttons, 0, 2);
this.tableLayoutPanel_Form.Controls.Add(this.panel_MainBody, 0, 1);
this.tableLayoutPanel_Form.Dock = System.Windows.Forms.DockStyle.Fill;
this.tableLayoutPanel_Form.Location = new System.Drawing.Point(0, 0);
this.tableLayoutPanel_Form.Name = "tableLayoutPanel_Form";
this.tableLayoutPanel_Form.RowCount = 3;
this.tableLayoutPanel_Form.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 30F));
this.tableLayoutPanel_Form.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));
this.tableLayoutPanel_Form.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 30F));
this.tableLayoutPanel_Form.Size = new System.Drawing.Size(496, 322);
this.tableLayoutPanel_Form.TabIndex = 26;
//
// panel_Buttons
//
this.panel_Buttons.Dock = System.Windows.Forms.DockStyle.Fill;
this.panel_Buttons.Location = new System.Drawing.Point(3, 295);
this.panel_Buttons.Name = "panel_Buttons";
this.panel_Buttons.Size = new System.Drawing.Size(490, 24);
this.panel_Buttons.TabIndex = 0;
//
// panel_MainBody
//
this.panel_MainBody.Dock = System.Windows.Forms.DockStyle.Fill;
this.panel_MainBody.Location = new System.Drawing.Point(3, 33);
this.panel_MainBody.Name = "panel_MainBody";
this.panel_MainBody.Size = new System.Drawing.Size(490, 256);
this.panel_MainBody.TabIndex = 1;
//
// progressBar
//
this.progressBar.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.progressBar.Location = new System.Drawing.Point(383, 324);
this.progressBar.Name = "progressBar";
this.progressBar.Size = new System.Drawing.Size(112, 21);
this.progressBar.TabIndex = 27;
//
// timer_ProgressBar
//
this.timer_ProgressBar.Interval = 700;
this.timer_ProgressBar.Tick += new System.EventHandler(this.timer_Tick);
//
// BaseView
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.CancelButton = this.btnClose;
this.ClientSize = new System.Drawing.Size(496, 346);
this.Controls.Add(this.progressBar);
this.Controls.Add(this.tableLayoutPanel_Form);
this.Cursor = System.Windows.Forms.Cursors.Default;
this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
this.MinimumSize = new System.Drawing.Size(512, 384);
this.Name = "BaseView";
this.Controls.SetChildIndex(this.btnClose, 0);
this.Controls.SetChildIndex(this.tableLayoutPanel_Form, 0);
this.Controls.SetChildIndex(this.lblFormId, 0);
this.Controls.SetChildIndex(this.lblFormDescription, 0);
this.Controls.SetChildIndex(this.progressBar, 0);
this.tableLayoutPanel_Form.ResumeLayout(false);
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.ProgressBar progressBar;
private System.Windows.Forms.Timer timer_ProgressBar;
public System.Windows.Forms.TableLayoutPanel tableLayoutPanel_Form;
public System.Windows.Forms.Panel panel_Buttons;
public System.Windows.Forms.Panel panel_MainBody;
}
This MSDN article gave me the answer.
"Not all controls support visual inheritance from a base form. The following controls do not support the scenario described in this walkthrough: WebBrowser, ToolStrip, ToolStripPanel, TableLayoutPanel, FlowLayoutPanel, DataGridView. These controls in the inherited form are always read-only regardless of the modifiers you use (private, protected, or public)."
I used a docked Panel and a SplitContainer instead of a TLP, and now I can drop anything I want into them.
来源：https://stackoverflow.com/questions/15092025/how-do-i-add-a-control-to-a-container-in-an-inherited-winform