I want to make simple Yes/No choiced MessageBox, but I think it is nonsense to design a form for that. I thought I could use MessageBox, add buttons, etc. to accomplish this. It is simple, but since there is no DialogResult returned, how do I retrieve the result?

11 Answers

This should do it:

DialogResult dialogResult = MessageBox.Show("Sure", "Some Title", MessageBoxButtons.YesNo); if(dialogResult == DialogResult.Yes) { //do something } else if (dialogResult == DialogResult.No) { //do something else }
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DialogResult dr = MessageBox.Show("Are you happy now?", "Mood Test", MessageBoxButtons.YesNo); switch(dr) { case DialogResult.Yes: break; case DialogResult.No: break; }

MessageBox class is what you are looking for.

MessageBox.Show(title, text, )

This returns a DialogResult which you can check.

For example,

if(MessageBox.Show("","",MessageBoxButtons.YesNo) == DialogResult.Yes) { //do something }

The MessageBox does produce a DialogResults

DialogResult r = MessageBox.Show("Some question here");

You can also specify the buttons easily enough. More documentation can be found at

Use:

MessageBoxResult m = MessageBox.Show("The file will be saved here.", "File Save", MessageBoxButton.OKCancel); if(m == m.Yes) { // Do something } else if (m == m.No) { // Do something else }

MessageBoxResult is used on Windows Phone instead of DialogResult...

You can also use this variant with text strings, here's the complete changed code (Code from Mikael), tested in C# 2012:

// Variable string MessageBoxTitle = "Some Title"; string MessageBoxContent = "Sure"; DialogResult dialogResult = MessageBox.Show(MessageBoxContent, MessageBoxTitle, MessageBoxButtons.YesNo); if(dialogResult == DialogResult.Yes) { //do something } else if (dialogResult == DialogResult.No) { //do something else }

You can after

.YesNo

insert a message icon

, MessageBoxIcon.Question

@Mikael Svenson's answer is correct. I just wanted to add a small addition to it:

The Messagebox icon can also be included has an additional property like below:

DialogResult dialogResult = MessageBox.Show("Sure", "Please Confirm Your Action", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
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if (MessageBox.Show("Please confirm before proceed" + "\n" + "Do you want to Continue ?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes) { //do something if YES } else { //do something if NO }

It will Prompt a message box like this.

This simple code worked for me. I grabbed it from MSDN here:

if (System.Windows.Forms.MessageBox.Show ("Are you sure you want to add the audit?", "Add", System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question) ==System.Windows.Forms.DialogResult.Yes) // Do stuff after 'YES is clicked' else // DO stuff after 'NO is clicked'

Try this:

if (MessageBox.Show("Are you sure", "Title_here", MessageBoxButton.YesNo) == MessageBoxResult.Yes) { Do something here for 'Yes'... } 
dynamic MsgResult = this.ShowMessageBox("Do you want to cancel all pending changes ?", "Cancel Changes", MessageBoxOption.YesNo); if (MsgResult == System.Windows.MessageBoxResult.Yes) { enter code here } else { enter code here }

Check more detail from here