Get Selected Radio button’s Text in C# windows app

The object is to get selected radio button’s text in windows app using C#. It can be done in many ways. Suppose you have one group box having radio-buttons. You have to show selected radio button’s text on OK button click.

Method 1(Traditional Approach):

1. Write following code:

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String selectedText;   private void radioButton_CheckedChanged( object sender, EventArgs e)          {             if (((RadioButton)sender).Checked)              selectedText = ((RadioButton)sender).Text;           } private void buttonOK_Click( object sender, EventArgs e)          {              MessageBox.Show(selectedText, "Selected Item" );           }

2. Now, for each radio button, Goto properties > events > give radioButton_CheckedChangedmethod name in CheckedChanged event and save it.

3. When you run app, select any option, radioButton_CheckedChanged is fired and text is stored in the variable and it is displayed in messagebox on button click.

I don’t like 2 step. Suppose you have many radio buttons then it is time consuming to set event for all. So, I prefer second method.


Method II:

In this method, I created a method GetSelectedRadioButtonText which accepts groupbox as a parameter and returns selected radio button’s text.

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private string GetSelectedRadioButtonText(GroupBox grb) {             return grb.Controls.OfType<RadioButton>().SingleOrDefault(rad => rad.Checked == true ).Text;            } private void buttonOK_Click( object sender, EventArgs e)          {              MessageBox.Show(GetSelectedRadioButtonText(groupBox1), "Selected Item" );           }

Hope, It helps.

转自：http://techbrij.com/get-selected-radio-button-text-windows-app-net