如何显示带有复选框的MessageBox

本文关键字:复选框 MessageBox 何显示 显示 | 更新日期: 2023-09-27 18:20:21

我想创建一个具有/按钮和复选框的MessageBox

该应用程序是一个图片大小调整器,它将同时重新调整多个图片的大小;在这个过程中,它将检查新的位置文件名是否存在,并选择覆盖它。

如果需要,MessageBox将为用户提供覆盖任何新文件的选项,而复选框将防止用户在想要覆盖每个文件时必须单击x多次。

如何在MessageBox对话框中添加复选框?

如何显示带有复选框的MessageBox

创建一个自定义对话框。这里有一些东西可以给你一个想法:

public static class CheckboxDialog
{   
    public static bool ShowDialog(string text, string caption)
    {
        Form prompt = new Form();
        prompt.Width = 180;
        prompt.Height = 100;
        prompt.Text = caption;
        FlowLayoutPanel panel = new FlowLayoutPanel();
        CheckBox chk = new CheckBox();
        chk.Text = text;
        Button ok = new Button() { Text = "Yes" };
        ok.Click += (sender, e) => { prompt.Close(); };
        Button no = new Button() { Text = "No" };
        no.Click += (sender, e) => { prompt.Close(); };
        panel.Controls.Add(chk);
        panel.SetFlowBreak(chk, true);
        panel.Controls.Add(ok);
        panel.Controls.Add(no);
        prompt.Controls.Add(panel);
        prompt.ShowDialog();
        return chk.Checked;
    }
}

你可以这样使用它:

bool overwrite = CheckboxDialog.ShowDialog("overwrite", "Overwrite location?");

您不能在MessageBox中添加复选框。正如Tim和rsbarro建议的那样,您应该创建一个自定义对话框。Tim的回答会很好,而且不需要创建新的类。如果你想在设计器中设计表单,你可以试试这个。

  • 使用两个按钮和所需的复选框创建一个新表单
  • 在表单设计器中,将Yes按钮的DialogResult属性设置为Yes,并将No
  • 在窗体上创建一个反映复选框状态的属性(可选-我不喜欢从另一个窗体引用一个窗体上的控件,但如果将复选框公开,也可以)
public bool DoForAll
{
    get { return checkBox.Checked; }
}
  • 在主窗体上,需要时显示子窗体。例如:
var options = new Options();
var result = options.ShowDialog();
if (result == DialogResult.Yes)
{
    var doForAll = options.DoForAll;
}

对于vb.net(视图是此代码,只显示一个按钮)

clsMsgBoxV1.ShowDialog("PDF solo de albaranes. (No avisarme mas)", "PDF")

并使用这个共享类:

Public Class clsMsgBoxV1
    Shared prompt As Form
    Shared chk As CheckBox
    Public Shared Function ShowDialog(Text As String, caption As String) As Boolean
        'frmUsuario

        prompt = New Form()
        chk = New CheckBox()
        prompt.StartPosition = FormStartPosition.CenterParent
        prompt.Width = 220
        prompt.Height = 150
        prompt.Text = caption
        prompt.MinimumSize = prompt.Size
        prompt.MaximumSize = prompt.Size
        prompt.MaximizeBox = False
        prompt.MinimizeBox = False
        Dim panel As FlowLayoutPanel =   New FlowLayoutPanel()
        chk.Text = Text
        chk.Width = chk.Width * 2
        chk.Height = 50
        Dim ok As Button = New Button() With {
            .Text = "Leido"
        }
        AddHandler ok.Click, AddressOf OKClick

        'Dim no As Button = New Button() With {
        '.Text = "No"
        '}
        'AddHandler no.Click, AddressOf NoClick

        ok.Width = prompt.Width - 30
        panel.Controls.Add(chk)
        panel.SetFlowBreak(chk, True)
        panel.Controls.Add(ok)
        'panel.Controls.Add(no)
        prompt.Controls.Add(panel)
        prompt.ShowDialog()
        prompt.Dispose()
        Return chk.Checked
    End Function
    Private Shared Sub NoClick(sender As Object, e As EventArgs)
        prompt.Close()
    End Sub
    Private Shared Sub OKClick(sender As Object, e As EventArgs)
        prompt.Close()
    End Sub
End Class

我意识到这是一个非常古老的线程,但我只想花两分钱。

Ookii是将CheckBox实现为MessageBox或自定义它的最简单方法:https://github.com/ookii-dialogs/ookii-dialogs-wpf(我使用它是因为经典的"文件夹浏览器"对话框,所以我想还不如用它来做复选框的事情)

这是我的代码:

using Ookii.Dialogs.Wpf;
//create instance of ookii dialog
TaskDialog dialog = new();
//create instance of buttons
TaskDialogButton butYes = new TaskDialogButton("Yes");
TaskDialogButton butNo = new TaskDialogButton("No");
TaskDialogButton butCancel = new TaskDialogButton("Cancel");
//checkbox 
dialog.VerificationText = "Dont Show Again"; //<--- this is what you want.
//customize the window
dialog.WindowTitle = "Confirm Action";
dialog.Content = "You sure you want to close?";
dialog.MainIcon = TaskDialogIcon.Warning;
//add buttons to the window
dialog.Buttons.Add(butYes);
dialog.Buttons.Add(butNo);
dialog.Buttons.Add(butCancel);
//show window
TaskDialogButton result = dialog.ShowDialog(this);
//get checkbox result
if (dialog.IsVerificationChecked)
{
    //do stuff
}
//get window result
if (result != butYes)
{
    //if user didn't click "Yes", then cancel the closing.
    e.Cancel = true;
    return;
}