windows-forms-designer

问题 I'm having a problem with the windows form application . When I create the windows form application , it displays the source code for the form but not the designer layout 回答1: To enable the designer, download and install the Windows Forms .NET Core Designer VSIX package. See article: https://devblogs.microsoft.com/dotnet/introducing-net-core-windows-forms-designer-preview-1/ 来源： https://stackoverflow.com/questions/58380472/visual-studio-2019-windows-forms-designer

问题 I can't figure out what the issue is here. I started project from scratch, went to debug, and received error: System.InvalidOperationException was unhandled Message=An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object. I am not understand why this error is occurring in an auto-generated file. Here is the code in it's entirety: '--------------------------------------------------------------------------

问题 Consider I have a simple group box with two textboxes When I expand the window I want to resize the my label and textbox. So I used the Anchor property, but it is getting overlapped. Textbox1 is overlapping with textbox2. How can I maintain the size increase based on form size without overlapping 回答1: You can achieve what you want like this: Add a TableLayoutPanel with 4 columns and place it inside your GroupBox. Place the Labels inside columns 1/3 and Textboxes inside columns 2/4 Set

问题 I'm following this C# article to learn how to create an ActionList and Action Items, however the article is only focused to action items of type DesignerActionPropertyItem ... I would like to create an item of type DesignerActionMethodItem to call a method that must open a MultilineStringEditor to edit the text lines of the control, just the same action item that we can see in a default RichTextBox control: Someone could explain me how to do this in C# or VB.NET?. I'm stuck on the values to

问题 I have a class library with a custom control in it: using System.ComponentModel; using System.Windows.Forms; namespace ClassLibrary1 { public sealed class CustomLabel : Label { [DefaultValue(false), Browsable(false), EditorBrowsable(EditorBrowsableState.Never), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] public override bool AutoSize { get => base.AutoSize; set => base.AutoSize = value; } public CustomLabel() { AutoSize = false; } } } Notice that AutoSize is set

问题 I have a somewhat complex UserControl, and Visual Studio 2008 is giving me a rather harmless annoyance when working with it. Every single time I open the control with the Designer, it decides to immediately change some of the harmless values set by the designer - namely the initialization of Size properties. If I save those changes, close, and reopen, it almost invariably ends up deciding another component of my control needs its initial size changed, ad infinitum. Luckily these changes are

问题 When i enter the id on the textbox of form1.form2 Report viewer shown the record.but it won't displayed all data diplayed what is in the table. I have create the dataset1 and load the values. Form1 Form2 frm2 = new Form2(); frm2.studentid = textBox1.Text; frm2.Show(); Form2 string id = studentid; this.recordsTableAdapter.FillBy(this.DataSet1.records, id); // by **this line Gereate sub for by** i am a beginner of Report viewer this.recordsTableAdapter.Fill(this.DataSet1.records); this

问题 I am making a simple WinForms program. I would like to link a component's size to the size of the Window. Let's say the user enlarges or shrinks the Window by dragging it's borders: I would like that a component gets bigger when the Window does and vice versa. Let's pretend that we have two Buttons, in the center of the Window, side by side: I want to make them the same size filling the entire width of the Window. How can I do that? 回答1: Sample procedure, using a TableLayoutPanel and 2

问题 Within the Visual Studio Designer, under the properties window you are able to select the ForeColor , BackColor etc using color picker. When you want to pick a color, a color picker comes up with the tabs 'Custom, Web, System'. If you select custom, then you are able to add a new color to the picker, but only the bottom 2 rows are changeable, and the changes don't persist across controls. So if you add a color to the palette, when you select another control and want to change for example

问题 I have a tab control in a windows form and I want to be able to click on a tab and in the body area of the tab I want it to display another form as an embedded component. Is this possible? If so, can someone please provide an example or a link to an example of how to accomplish this? 回答1: You are probably looking for Tabbed MDI Child Forms 回答2: You can embed a Form but it's not the best choice. Better place the contents on UserControls and add that to the TabPage. 回答3: Set your MainForm