C# default checked RadioButton in a GroupBox
I have two GroupBoxes (groupBox1 and groupBox2) and each of which contains a set of RadioButtons.
The problem is that in groupBox1, there is a default RadioButton (1st RadioButton in the group) been checked when running the project, meanwhile groupBox2 doesn't have a default checked RadioButton,
I am wondering why is that and how to set a default checked RadioButton for groupBox2, and deselect the default RadioButton for groupBox1.
ps. When I run the project, the Checked property of the first RadioButton in groupBox1 was set to 'False' though.
namespace RadioButtonsTest
{
partial class RadioButtonsTestForm
{
/// <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.buttonTypeGroupBox = new System.Windows.Forms.GroupBox();
this.retryCancelButton = new System.Windows.Forms.RadioButton();
this.yesNoRadioButton = new System.Windows.Forms.RadioButton();
this.yesNoCancelRadioButton = new System.Windows.Forms.RadioButton();
this.abortRetryIgnoreRadioButton = new System.Windows.Forms.RadioButton();
this.okCancelRadioButton = new System.Windows.Forms.RadioButton();
this.okRadioButton = new System.Windows.Forms.RadioButton();
this.displayButton = new System.Windows.Forms.Button();
this.iconGroupBox = new System.Windows.Forms.GroupBox();
this.warningRadioButton = new System.Windows.Forms.RadioButton();
this.stopRadioButton = new System.Windows.Forms.RadioButton();
this.questionRadioButton = new System.Windows.Forms.RadioButton();
this.informationRadioButton = new System.Windows.Forms.RadioButton();
this.handRadioButton = new System.Windows.Forms.RadioButton();
this.exclamationRadioButton = new System.Windows.Forms.RadioButton();
this.errorRadioButton = new System.Windows.Forms.RadioButton();
this.asteriskRadioButton = new System.Windows.Forms.RadioButton();
this.displayLabel = new System.Windows.Forms.Label();
this.buttonTypeGroupBox.SuspendLayout();
this.iconGroupBox.SuspendLayout();
this.SuspendLayout();
//
// buttonTypeGroupBox
//
this.buttonTypeGroupBox.Controls.Add(this.retryCancelButton);
this.buttonTypeGroupBox.Controls.Add(this.yesNoRadioButton);
this.buttonTypeGroupBox.Controls.Add(this.yesNoCancelRadioButton);
this.buttonTypeGroupBox.Controls.Add(this.abortRetryIgnoreRadioButton);
this.buttonTypeGroupBox.Controls.Add(this.okCancelRadioButton);
this.buttonTypeGroupBox.Controls.Add(this.okRadioButton);
this.buttonTypeGroupBox.Location = new System.Drawing.Point(13, 13);
this.buttonTypeGroupBox.Name = "buttonTypeGroupBox";
this.buttonTypeGroupBox.Size = new System.Drawing.Size(120, 160);
this.buttonTypeGroupBox.TabIndex = 0;
this.buttonTypeGroupBox.TabStop = false;
this.buttonTypeGroupBox.Text = "Button Type";
//
// retryCancelButton
//
this.retryCancelButton.AutoSize = true;
this.retryCancelButton.Location = new System.Drawing.Point(7, 140);
this.retryCancelButton.Name = "retryCancelButton";
this.retryCancelButton.Size = new System.Drawing.Size(83, 17);
this.retryCancelButton.TabIndex = 5;
this.retryCancelButton.TabStop = true;
this.retryCancelButton.Text = "RetryCancel";
this.retryCancelButton.UseVisualStyleBackColor = true;
//
// yesNoRadioButton
//
this.yesNoRadioButton.AutoSize = true;
this.yesNoRadioButton.Location = new System.Drawing.Point(7, 116);
this.yesNoRadioButton.Name = "yesNoRadioButton";
this.yesNoRadioButton.Size = new System.Drawing.Size(57, 17);
this.yesNoRadioButton.TabIndex = 4;
this.yesNoRadioButton.TabStop = true;
this.yesNoRadioButton.Text = "YesNo";
this.yesNoRadioButton.UseVisualStyleBackColor = true;
//
// yesNoCancelRadioButton
//
this.yesNoCancelRadioButton.AutoSize = true;
this.yesNoCancelRadioButton.Location = new System.Drawing.Point(7, 92);
this.yesNoCancelRadioButton.Name = "yesNoCancelRadioButton";
this.yesNoCancelRadioButton.Size = new System.Drawing.Size(90, 17);
this.yesNoCancelRadioButton.TabIndex = 3;
this.yesNoCancelRadioButton.TabStop = true;
this.yesNoCancelRadioButton.Text = "YesNoCancel";
this.yesNoCancelRadioButton.UseVisualStyleBackColor = true;
//
// abortRetryIgnoreRadioButton
//
this.abortRetryIgnoreRadioButton.AutoSize = true;
this.abortRetryIgnoreRadioButton.Location = new System.Drawing.Point(7, 68);
this.abortRetryIgnoreRadioButton.Name = "abortRetryIgnoreRadioButton";
this.abortRetryIgnoreRadioButton.Size = new System.Drawing.Size(105, 17);
this.abortRetryIgnoreRadioButton.TabIndex = 2;
this.abortRetryIgnoreRadioButton.TabStop = true;
this.abortRetryIgnoreRadioButton.Text = "AbortRetryIgnore";
this.abortRetryIgnoreRadioButton.UseVisualStyleBackColor = true;
//
// okCancelRadioButton
//
this.okCancelRadioButton.AutoSize = true;
this.okCancelRadioButton.Location = new System.Drawing.Point(7, 44);
this.okCancelRadioButton.Name = "okCancelRadioButton";
this.okCancelRadioButton.Size = new System.Drawing.Size(73, 17);
this.okCancelRadioButton.TabIndex = 1;
this.okCancelRadioButton.TabStop = true;
this.okCancelRadioButton.Text = "OKCancel";
this.okCancelRadioButton.UseVisualStyleBackColor = true;
//
// okRadioButton
//
this.okRadioButton.AutoSize = true;
this.okRadioButton.Location = new System.Drawing.Point(7, 20);
this.okRadioButton.Name = "okRadioButton";
this.okRadioButton.Size = new System.Drawing.Size(40, 17);
this.okRadioButton.TabIndex = 0;
this.okRadioButton.TabStop = true;
this.okRadioButton.Text = "OK";
this.okRadioButton.UseVisualStyleBackColor = true;
//
// displayButton
//
this.displayButton.Location = new System.Drawing.Point(13, 180);
this.displayButton.Name = "displayButton";
this.displayButton.Size = new System.Drawing.Size(120, 40);
this.displayButton.TabIndex = 1;
this.displayButton.Text = "Display";
this.displayButton.UseVisualStyleBackColor = true;
this.displayButton.Click += new System.EventHandler(this.displayButton_Click);
//
// iconGroupBox
//
this.iconGroupBox.Controls.Add(this.warningRadioButton);
this.iconGroupBox.Controls.Add(this.stopRadioButton);
this.iconGroupBox.Controls.Add(this.questionRadioButton);
this.iconGroupBox.Controls.Add(this.informationRadioButton);
this.iconGroupBox.Controls.Add(this.handRadioButton);
this.iconGroupBox.Controls.Add(this.exclamationRadioButton);
this.iconGroupBox.Controls.Add(this.errorRadioButton);
this.iconGroupBox.Controls.Add(this.asteriskRadioButton);
this.iconGroupBox.Location = new System.Drawing.Point(140, 13);
this.iconGroupBox.Name = "iconGroupBox";
this.iconGroupBox.Size = new System.Drawing.Size(120, 207);
this.iconGroupBox.TabIndex = 2;
this.iconGroupBox.TabStop = false;
this.iconGroupBox.Text = "Icon";
//
// warningRadioButton
//
this.warningRadioButton.AutoSize = true;
this.warningRadioButton.Location = new System.Drawing.Point(7, 188);
this.warningRadioButton.Name = "warningRadioButton";
this.warningRadioButton.Size = new System.Drawing.Size(65, 17);
this.warningRadioButton.TabIndex = 7;
this.warningRadioButton.TabStop = true;
this.warningRadioButton.Text = "Warning";
this.warningRadioButton.UseVisualStyleBackColor = true;
//
// stopRadioButton
//
this.stopRadioButton.AutoSize = true;
this.stopRadioButton.Location = new System.Drawing.Point(7, 164);
this.stopRadioButton.Name = "stopRadioButton";
this.stopRadioButton.Size = new System.Drawing.Size(47, 17);
this.stopRadioButton.TabIndex = 6;
this.stopRadioButton.TabStop = true;
this.stopRadioButton.Text = "Stop";
this.stopRadioButton.UseVisualStyleBackColor = true;
//
// questionRadioButton
//
this.questionRadioButton.AutoSize = true;
this.questionRadioButton.Location = new System.Drawing.Point(7, 140);
this.questionRadioButton.Name = "questionRadioButton";
this.questionRadioButton.Size = new System.Drawing.Size(67, 17);
this.questionRadioButton.TabIndex = 5;
this.questionRadioButton.TabStop = true;
this.questionRadioButton.Text = "Question";
this.questionRadioButton.UseVisualStyleBackColor = true;
//
// informationRadioButton
//
this.informationRadioButton.AutoSize = true;
this.informationRadioButton.Location = new System.Drawing.Point(7, 116);
this.informationRadioButton.Name = "informationRadioButton";
this.informationRadioButton.Size = new System.Drawing.Size(77, 17);
this.informationRadioButton.TabIndex = 4;
this.informationRadioButton.TabStop = true;
this.informationRadioButton.Text = "Information";
this.informationRadioButton.UseVisualStyleBackColor = true;
//
// handRadioButton
//
this.handRadioButton.AutoSize = true;
this.handRadioButton.Location = new System.Drawing.Point(7, 92);
this.handRadioButton.Name = "handRadioButton";
this.handRadioButton.Size = new System.Drawing.Size(51, 17);
this.handRadioButton.TabIndex = 3;
this.handRadioButton.TabStop = true;
this.handRadioButton.Text = "Hand";
this.handRadioButton.UseVisualStyleBackColor = true;
//
// exclamationRadioButton
//
this.exclamationRadioButton.AutoSize = true;
this.exclamationRadioButton.Location = new System.Drawing.Point(7, 68);
this.exclamationRadioButton.Name = "exclamationRadioButton";
this.exclamationRadioButton.Size = new System.Drawing.Size(82, 17);
this.exclamationRadioButton.TabIndex = 2;
this.exclamationRadioButton.TabStop = true;
this.exclamationRadioButton.Text = "Exclamation";
this.exclamationRadioButton.UseVisualStyleBackColor = true;
//
// errorRadioButton
//
this.errorRadioButton.AutoSize = true;
this.errorRadioButton.Location = new System.Drawing.Point(7, 44);
this.errorRadioButton.Name = "errorRadioButton";
this.errorRadioButton.Size = new System.Drawing.Size(47, 17);
this.errorRadioButton.TabIndex = 1;
this.errorRadioButton.TabStop = true;
this.errorRadioButton.Text = "Error";
this.errorRadioButton.UseVisualStyleBackColor = true;
//
// asteriskRadioButton
//
this.asteriskRadioButton.AutoSize = true;
this.asteriskRadioButton.Location = new System.Drawing.Point(7, 20);
this.asteriskRadioButton.Name = "asteriskRadioButton";
this.asteriskRadioButton.Size = new System.Drawing.Size(62, 17);
this.asteriskRadioButton.TabIndex = 0;
this.asteriskRadioButton.TabStop = true;
this.asteriskRadioButton.Text = "Asterisk";
this.asteriskRadioButton.UseVisualStyleBackColor = true;
//
// displayLabel
//
this.displayLabel.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.displayLabel.Location = new System.Drawing.Point(13, 227);
this.displayLabel.Name = "displayLabel";
this.displayLabel.Size = new System.Drawing.Size(247, 15);
this.displayLabel.TabIndex = 3;
//
// RadioButtonsTestForm
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.displayLabel);
this.Controls.Add(this.iconGroupBox);
this.Controls.Add(this.displayButton);
this.Controls.Add(this.buttonTypeGroupBox);
this.Name = "RadioButtonsTestForm";
this.Text = "Demonstrating RadioButtons";
this.buttonTypeGroupBox.ResumeLayout(false);
this.buttonTypeGroupBox.PerformLayout();
this.iconGroupBox.ResumeLayout(false);
this.iconGroupBox.PerformLayout();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.GroupBox buttonTypeGroupBox;
private System.Windows.Forms.RadioButton retryCancelButton;
private System.Windows.Forms.RadioButton yesNoRadioButton;
private System.Windows.Forms.RadioButton yesNoCancelRadioButton;
private System.Windows.Forms.RadioButton abortRetryIgnoreRadioButton;
private System.Windows.Forms.RadioButton okCancelRadioButton;
private System.Windows.Forms.RadioButton okRadioButton;
private System.Windows.Forms.Button displayButton;
private System.Windows.Forms.GroupBox iconGroupBox;
private System.Windows.Forms.RadioButton warningRadioButton;
private System.Windows.Forms.RadioButton stopRadioButton;
private System.Windows.Forms.RadioButton questionRadioButton;
private System.Windows.Forms.RadioButton informationRadioButton;
private System.Windows.Forms.RadioButton handRadioButton;
private System.Windows.Forms.RadioButton exclamationRadioButton;
private System.Windows.Forms.RadioButton errorRadioButton;
private System.Windows.Forms.RadioButton asteriskRadioButton;
private System.Windows.Forms.Label displayLabel;
}
}
Answer
Just select the RadioButtons in the form designer and set the 'checked' property to true for the elements you want to be checked by default.