Dynamically Populate Time Drop Downs in ASP.NET

Question

I have a requirement to populate 2 drop down list with hours and minutes. My current method of populating the drop downs doesn't format the numbers correctly as I require the leading 0 for the first 9 number i.e 01,02,03 not 1,2,3 as is currently happening. C# ``` protected override void OnInit(EventArgs e) { base.OnInit(e); if (!IsPostBack) { // Populate and Bind Time drop downs ddlOh1OpenHours.DataSource = Enumerable.Range(00, 24); ddlOh1OpenHours.DataBind(); ddlOh1OpenMinutes.DataSource = Enumerable.Range(00, 60); ddlOh1OpenMinutes.DataBind(); } } ``` ASPX ``` : ``` Result: ```

Accepted Answer

Just use `ToString` with the proper format:

```
var hours = Enumerable.Range(00, 24).Select(i => i.ToString("D2"));
var minutes  = Enumerable.Range(00, 60).Select(i => i.ToString("D2"));

dlOh1OpenHours.DataSource = hours;
ddlOh1OpenHours.DataBind();
ddlOh1OpenMinutes.DataSource = minutes;
ddlOh1OpenMinutes.DataBind();
```

> Demo <

Standard Numeric Format Strings

Dynamically Populate Time Drop Downs in ASP.NET

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