Filtering text boxes based on radio button selection

Question

Filtering text boxes based on radio button selection

I have a RadioButtonList and a TextBox. Depending on the selection made in the RadioButtonList, I need to filter the content of the textbox.

 <asp:RadioButtonList ID="RadioButtonList1"  runat="server"  AutoPostBack="True" OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged">
      <asp:ListItem Text="NUMBER" Value="1" Selected="True"></asp:ListItem>
      <asp:ListItem Text="TEXT" Value="2"></asp:ListItem>
</asp:RadioButtonList>

 <asp:TextBox ID="txtID" runat="server">

When the list item with value 1 is clicked, the user should be able to enter a number in the textbox. If they select value 2, they can enter both numbers and text. Additionally, I would like to set a maximum length for input. Can someone provide guidance on how to achieve this?

c#javascript asp.net

Answer 1

Answer №1

Create a JavaScript function that retrieves the selected value from the RadioButtonList1 component and compares it with values 1 or 2. If the value is 1, the user should only be allowed to input numbers. This restriction can be implemented on the client side by handling key press events in the text box, which will verify the comparison result before allowing the pressed key to appear in the text box.

Check out this link for guidance on how to retrieve the selected value from a RadioButtonList component using JavaScript

Answer 2

Create a JavaScript function that retrieves the selected value from the RadioButtonList1 component and compares it with values 1 or 2. If the value is 1, the user should only be allowed to input numbers. This restriction can be implemented on the client side by handling key press events in the text box, which will verify the comparison result before allowing the pressed key to appear in the text box.

Check out this link for guidance on how to retrieve the selected value from a RadioButtonList component using JavaScript

Filtering text boxes based on radio button selection

Answer №1

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