我添加了一些截图和步骤,以便在下面重现。
我的数据模型有一个基类,我们称之为CommonThing
,它有很多属性。然后,该类的几个专用版本具有其他属性。我现在想要创建一个UI来将数据输入到这个模型中。
我创建了一个UserControl
,其中包含所有常见属性的控件,如下所示:
internal partial class CommonThingControl : UserControl {
public CommonThingControl() {
InitializeComponent();
}
// Controller code
}
这也会添加CommonThingControl.Designer.cs
,由GUI设计者填充。
我现在创建了一个SpecialFooThingControl
作为UserControl
,并将类标题更改为:
internal partial class SpecialFooThingControl : CommonThingControl {
// implementation
}
当我现在打开GUI设计器中的SpecialFooThingControl
时,我看到了CommonThingControl
的控件,但它们都被锁定了。我在TableLayoutPanel
中有CommonThingControl
我要添加内容,但我无法更改任何内容,当我尝试将控件拖到TableLayoutPanel
时,鼠标光标变为& #34;禁止停车"标志和VS不让我。当我将TableLayoutPanel
的访问者设置为public
。
我可以通过文档大纲将控件移动到TableLayoutPanel
,但是当我重建项目时,它会从UI中消失。
我想用UI设计师实现的目标是不可能的,我是否需要手动设置或者是否有一些我忘了的额外步骤?
这是我做的:
首先,创建了一个用户控件,这很简单。我创建了一个表格布局面板,我将其设置为Protected
,因为我想添加它。
这是FooControl.cs
的代码:
namespace GuiTest {
public partial class FooControl : UserControl {
public FooControl() {
InitializeComponent();
}
}
}
FooControl.Designer.cs
:
namespace GuiTest {
partial class FooControl {
/// <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.label1 = new System.Windows.Forms.Label();
this.textBox1 = new System.Windows.Forms.TextBox();
this.tableLayoutPanel1.SuspendLayout();
this.SuspendLayout();
//
// tableLayoutPanel1
//
this.tableLayoutPanel1.ColumnCount = 2;
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
this.tableLayoutPanel1.Controls.Add(this.label1, 0, 0);
this.tableLayoutPanel1.Controls.Add(this.textBox1, 1, 0);
this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
this.tableLayoutPanel1.Name = "tableLayoutPanel1";
this.tableLayoutPanel1.RowCount = 1;
this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
this.tableLayoutPanel1.Size = new System.Drawing.Size(360, 28);
this.tableLayoutPanel1.TabIndex = 0;
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(3, 7);
this.label1.Margin = new System.Windows.Forms.Padding(3, 7, 3, 0);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(25, 13);
this.label1.TabIndex = 0;
this.label1.Text = "Foo";
//
// textBox1
//
this.textBox1.Dock = System.Windows.Forms.DockStyle.Top;
this.textBox1.Location = new System.Drawing.Point(34, 3);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(323, 20);
this.textBox1.TabIndex = 1;
//
// FooControl
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add(this.tableLayoutPanel1);
this.Name = "FooControl";
this.Size = new System.Drawing.Size(360, 28);
this.tableLayoutPanel1.ResumeLayout(false);
this.tableLayoutPanel1.PerformLayout();
this.ResumeLayout(false);
}
#endregion
protected System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox textBox1;
}
}
现在我在UserControl
中将FooControl
的延伸范围更改为BarControl.cs
:
namespace GuiTest {
public partial class BarControl : FooControl {
public BarControl() {
InitializeComponent();
}
}
}
BarControl.Designer.cs
:
namespace GuiTest {
partial class BarControl {
/// <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() {
components = new System.ComponentModel.Container();
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
}
#endregion
}
}
答案 0 :(得分:1)
print "Enter user data1: ";
my $data1 = <STDIN>;
print "Enter user data2: ";
my $data2 = <STDIN>;
my $sum = $data1 + $data2;
中的控件被锁定的原因是因为子类CommonThingControl
无法访问它们(它们是私有范围的)。
然而,在SpecialFooThingControl
的设计器中,您可以做的是更改它们上的修饰符属性,这将允许您在子类中使用/修改它们。您需要在每个单独的控件上执行此操作,并且只需更改“属性”窗口中的下拉列表即可。您可以在CommonThingControl
文件中更改它们,但是我也会因为自动生成此文件而保持警惕,如果您不小心,更改很容易被覆盖。
我建议使用类似commonthingcontrol.designer.cs
的内容,以确保子控件可以看到它们,但防止它们在继承链之外被滥用。
修改强>
因此,进一步研究这表明这是Protected
的限制。取自https://msdn.microsoft.com/en-us/library/ms171689.aspx:
避免可视继承TableLayoutPanel控件不支持 Windows窗体设计器中的可视继承。一个TableLayoutPanel 派生类中的控件在设计时显示为“锁定”。
答案 1 :(得分:0)
由于控件的可访问性,您无法更新它们。
为此,请进入您的CommonThingControl.Designer.cs,将例如<div class="col-md-5 col-sm-5 col-xs-6 col-xxs-12 fh5co-project to-animate">
<a href="images/work_1.jpg" class="image-popup">
<div class="fh5co-overlay-text">Project no. 1</div>
<div class="fh5co-overlay"></div>
<img src="images/work_1.jpg" alt="Free HTML5 Template" class="img-responsive">
</a>
<div class="carousel-caption">
<h3>Example headline.</h3>
</div>
</div>
更改为private Button MyButton1