Question

刚才我注意到，当属性设置为无效值时，Visual Studio会显示一个带有详细信息的消息框。例如：

是否可以在WinForms中创建这种类型的消息框？

我尝试过以下代码：

MessageBox.Show("Error in Division Fill.\n" + ex.Message,
                "Information",            
                MessageBoxButtons.OK,
                MessageBoxIcon.Information,
                MessageBoxOptions.RightAlign);

但是这产生了以下错误：

错误24'System.Windows.Forms.MessageBox.Show（字符串，字符串，System.Windows.Forms.MessageBoxButtons，System.Windows.Forms.MessageBoxIcon，System.Windows.Forms.MessageBoxDefaultButton）的最佳重载方法匹配'有一些无效的论点

G：\ Jagadeeswaran \ 11月17日\ MCS-SPS学校\ MCS-SPS学校\证书\ Transfer.cs 164 21 MCS-SPS学校

如何解决此错误并获取显示其他详细信息的消息框？

Answer 1

正如其他人所指出的那样，您应该编写一个包含所需功能的自定义对话框。有关这方面的帮助，您可以查看PropertyGrid用于此对话框的实际实现（可能使用反编译器），从.NET 4.0开始，System.Windows.Forms.PropertyGridInternal.GridErrorDlg类型，内部为System.Windows.Forms汇编。

我真的不推荐它（可能会在将来的版本中破坏），但如果你感觉很懒，可以直接使用反射来使用这种内部类型。

// Get reference to the dialog type.
var dialogTypeName = "System.Windows.Forms.PropertyGridInternal.GridErrorDlg";
var dialogType = typeof(Form).Assembly.GetType(dialogTypeName);

// Create dialog instance.
var dialog = (Form)Activator.CreateInstance(dialogType, new PropertyGrid());

// Populate relevant properties on the dialog instance.
dialog.Text = "Sample Title";
dialogType.GetProperty("Details").SetValue(dialog, "Sample Details", null);
dialogType.GetProperty("Message").SetValue(dialog, "Sample Message", null);

// Display dialog.
var result = dialog.ShowDialog();

<强>结果：

Details Dialog

Answer 2

您需要设置Form的以下属性才能创建自定义对话框/消息窗口。

的AcceptButton
CancelButton
FormBorderStyle = FixedDialog
MaximizeBox =假
MinimizeBox =假
ShowIcon =假
ShowInTaskBar =假
中StartPosition = CenterParent

现在，使用ShowDialog()方法显示自定义对话框。

MyDialog dialog=new MyDialog();
DialogResult result=dialog.ShowDialog();
if(result == DialogResult.OK)
{
  //
}

有关Dialog的更多信息，请参阅MSDN文章 - Dialog Boxes (Visual C#)

Answer 3

只需编写自己的对话框，就像你想要显示方法一样没有重载。

Answer 4

基于@ AVD上面的答案（我赞成），我写了以下内容。将其粘贴到您使用VS模板生成的表单中，它应该可以工作，可能只需要很少的调整。

我的代码：

using System;
using System.Windows.Forms;

namespace MessageBoxWithDetails
{
    /// <summary>
    /// A dialog-style form with optional colapsable details section
    /// </summary>
    public partial class MessageBoxWithDetails : Form
    {
        private const string DetailsFormat = "Details {0}";

    public MessageBoxWithDetails(string message, string title, string details = null)
    {
        InitializeComponent();

        lblMessage.Text = message;
        this.Text = title;

        if (details != null)
        {
            btnDetails.Enabled = true;
            btnDetails.Text = DownArrow;
            tbDetails.Text = details;
        }
    }

    private string UpArrow
    {
        get
        {
            return string.Format(DetailsFormat, char.ConvertFromUtf32(0x25B4));
        }
    }

    private string DownArrow
    {
        get
        {
            return string.Format(DetailsFormat, char.ConvertFromUtf32(0x25BE));
        }
    }

    /// <summary>
    /// Meant to give the look and feel of a regular MessageBox
    /// </summary>
    public static void Show(string message, string title, string details = null)
    {
        new MessageBoxWithDetails(message, title, details).ShowDialog();
    }

    protected override void OnLoad(EventArgs e)
    {
        base.OnLoad(e);

        // Change these properties now so the label is rendered so we get its real height
        var height = lblMessage.Height;
        SetMessageBoxHeight(height);
    }

    private void SetMessageBoxHeight(int heightChange)
    {
        this.Height = this.Height + heightChange;
        if (this.Height < 150)
        {
            this.Height = 150;
        }
    }

    private void btnClose_Click(object sender, EventArgs e)
    {
        this.Close();
    }

    private void btnDetails_Click(object sender, EventArgs e)
    {
        // Re-anchoring the controls so they stay in their place while the form is resized
        btnCopy.Anchor = AnchorStyles.Top;
        btnClose.Anchor = AnchorStyles.Top;
        btnDetails.Anchor = AnchorStyles.Top;
        tbDetails.Anchor = AnchorStyles.Top;

        tbDetails.Visible = !tbDetails.Visible;
        btnCopy.Visible = !btnCopy.Visible;

        btnDetails.Text = tbDetails.Visible ? UpArrow : DownArrow;

        SetMessageBoxHeight(tbDetails.Visible ? tbDetails.Height + 10 : -tbDetails.Height - 10);
    }

    private void btnCopy_Click(object sender, EventArgs e)
    {
        Clipboard.SetText(tbDetails.Text);
    }
}

Designer自动生成的代码（如果您不想粘贴它，它应该让您知道如何放入表单中）：

namespace MessageBoxWithDetails
{
    partial class MessageBoxWithDetails
    {
        /// <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.btnClose = new System.Windows.Forms.Button();
            this.btnDetails = new System.Windows.Forms.Button();
            this.btnCopy = new System.Windows.Forms.Button();
            this.lblMessage = new System.Windows.Forms.Label();
            this.tbDetails = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            // 
            // btnClose
            // 
            this.btnClose.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.btnClose.Location = new System.Drawing.Point(267, 37);
            this.btnClose.Name = "btnClose";
            this.btnClose.Size = new System.Drawing.Size(75, 23);
            this.btnClose.TabIndex = 0;
            this.btnClose.Text = "Close";
            this.btnClose.UseVisualStyleBackColor = true;
            this.btnClose.Click += new System.EventHandler(this.btnClose_Click);
            // 
            // btnDetails
            // 
            this.btnDetails.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.btnDetails.Enabled = false;
            this.btnDetails.Location = new System.Drawing.Point(12, 37);
            this.btnDetails.Name = "btnDetails";
            this.btnDetails.Size = new System.Drawing.Size(75, 23);
            this.btnDetails.TabIndex = 1;
            this.btnDetails.Text = "Details";
            this.btnDetails.UseVisualStyleBackColor = true;
            this.btnDetails.Click += new System.EventHandler(this.btnDetails_Click);
            // 
            // btnCopy
            // 
            this.btnCopy.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left) 
            | System.Windows.Forms.AnchorStyles.Right)));
            this.btnCopy.Location = new System.Drawing.Point(93, 37);
            this.btnCopy.Name = "btnCopy";
            this.btnCopy.Size = new System.Drawing.Size(102, 23);
            this.btnCopy.TabIndex = 4;
            this.btnCopy.Text = "Copy To Clipboard";
            this.btnCopy.UseVisualStyleBackColor = true;
            this.btnCopy.Visible = false;
            this.btnCopy.Click += new System.EventHandler(this.btnCopy_Click);
            // 
            // lblMessage
            // 
            this.lblMessage.AutoSize = true;
            this.lblMessage.Location = new System.Drawing.Point(12, 9);
            this.lblMessage.MaximumSize = new System.Drawing.Size(310, 0);
            this.lblMessage.Name = "lblMessage";
            this.lblMessage.Size = new System.Drawing.Size(35, 13);
            this.lblMessage.TabIndex = 5;
            this.lblMessage.Text = "label1";
            // 
            // tbDetails
            // 
            this.tbDetails.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
            this.tbDetails.Location = new System.Drawing.Point(12, 68);
            this.tbDetails.MaximumSize = new System.Drawing.Size(328, 100);
            this.tbDetails.Multiline = true;
            this.tbDetails.Name = "tbDetails";
            this.tbDetails.ReadOnly = true;
            this.tbDetails.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
            this.tbDetails.Size = new System.Drawing.Size(328, 100);
            this.tbDetails.TabIndex = 6;
            this.tbDetails.Visible = false;
            // 
            // MessageBoxWithDetails
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(354, 72);
            this.Controls.Add(this.tbDetails);
            this.Controls.Add(this.lblMessage);
            this.Controls.Add(this.btnCopy);
            this.Controls.Add(this.btnDetails);
            this.Controls.Add(this.btnClose);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "MessageBoxWithDetails";
            this.ShowIcon = false;
            this.ShowInTaskbar = false;
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Button btnClose;
        private System.Windows.Forms.Button btnDetails;
        private System.Windows.Forms.Button btnCopy;
        private System.Windows.Forms.Label lblMessage;
        private System.Windows.Forms.TextBox tbDetails;
    }
}

Answer 5

你可以这样做：

catch (Exception error)
{
    throw new Exception("Error with details button! \n"+error);
}

＆＃34;＆＃34;中的文字是＆＃34; Adicionar Fotografia＆＃34;。

注意：在运行应用程序（.exe）时，此代码运行正常，而在编辑器中运行它不起作用。

这是上面代码的示例：

Answer 6

我也遇到了同样的问题。我建议你使用windowsAPIcode包。这个网站将是一个很大的帮助。只需按照说明正确操作：http://www.developerfusion.com/article/71793/windows-7-task-dialogs/

如何在WinForms中显示包含详细信息的消息框？

6 个答案: