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how to get the selected values from checkboxlist in C#.Net and VB.Net

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In this article i am going to explain about how to get the selected values from checkboxlist in C#.Net and VB.Net.

I have a CheckBoxList in my form called chkMonths to display the available months. I want the the order of display should be horizontal. So i set RepeatDirection property value to Horizontal. And i want 3 columns per row so i set the value of RepeatColumns property to 3. I have a button in my form while clicking on it it will get all the selected months and display it below the button. Below is the html markup of the same.








        January
        February
        March
        April
        May
        June
        July
        August
        September
        October
        November
        December

While clicking on the button i am looping through all the list items in the checkboxlist and i am checking whether it is selected. If it is selected then i am appending the text of that listitem to a string along with a comma at the end. Once the loop is complete i am removing the unwanted comma which is at the end of the string using string substring function and showing the result in the literal called ltrMonths. If no month is selected then No month is selected message will be shown. Below is the cs code.

C#.Net: 
protected void btnSubmit_Click(object sender, EventArgs e)
{
    string SelectedMonths = "";
    foreach (ListItem item in chkMonths.Items)
    {
        if (item.Selected)
        {
            SelectedMonths += item.Text + ",";
        }
    }
    if (SelectedMonths.Length > 0)
    {
        SelectedMonths = SelectedMonths.Substring(0, SelectedMonths.Length - 1);
        ltrMonths.Text = "Selected Months are : " + SelectedMonths;
    }
    else
    {
        ltrMonths.Text = "No month is selected...";
    }
}
VB.Net: 
Protected Sub btnSubmit_Click(sender As Object, e As EventArgs)
Dim SelectedMonths As String = ""
For Each item As ListItem In chkMonths.Items
 If item.Selected Then
  SelectedMonths += item.Text + ","
 End If
Next
If SelectedMonths.Length > 0 Then
 SelectedMonths = SelectedMonths.Substring(0, SelectedMonths.Length - 1)
 ltrMonths.Text = Convert.ToString("Selected Months are : ") & SelectedMonths
Else
 ltrMonths.Text = "No month is selected..."
End If
End Sub
Below is the output.

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