---
title: "switch"
type: "forum-thread"
url: "https://www.webforum.nu/amne/dotnet/63748-switch"
topic: ".NET"
topic_url: "https://www.webforum.nu/amne/dotnet"
author: "icaaq"
published: "2003-01-03T12:42:43.000Z"
updated: "2003-01-03T12:46:49.000Z"
replies: 2
views: 176
page: 1
pages: 1
language: "sv-SE"
site: "webForum — webforum.nu"
rights: "Upphovsrätten till varje inlägg tillhör dess författare."
attribution: "Citera som: webForum, https://www.webforum.nu/amne/dotnet/63748-switch"
---

# switch

## #1 — icaaq, 2003-01-03T12:42Z

Hur ska jag lösa detta om Querystringen är null

```
[red]
switch(Convert.ToInt16(Request.QueryString["Id"]))
{
	case 1:
		mainpic.Visible = true;
		maindiv.Visible = false;
		clients.Visible = false;
		break;
	case 2:
	case 3:
		mainpic.Visible = false;
		maindiv.Visible = true;
		clients.Visible = false;
		break;
	case 4:
		mainpic.Visible = false;
		maindiv.Visible = false;
		clients.Visible = true;
		Clients myClient = new Clients();
		clientRepeater.DataSource = myClient.Fetch();
		clientRepeater.DataBind();
		break;
}
[/red]
```

mvh icaaq

Permalänk: https://www.webforum.nu/p/63748

## #2 — Pace, 2003-01-03T12:46Z

Måste väl gå att konvertera den till en sträng (för att få bort null) och sedan till integer:

```
switch(Convert.ToInt16(Request.QueryString["Id"].ToString))
```

Permalänk: https://www.webforum.nu/p/901600

## #3 — icaaq, 2003-01-03T12:46Z

såklart gjodre man så här

```
[red]
if(Request.QueryString["Id"] != null)
			{
				switch(Convert.ToInt16(Request.QueryString["Id"]))
				{
					case 1:
						mainpic.Visible = true;
						maindiv.Visible = false;
						clients.Visible = false;
						break;
					case 2:
					case 3:
						mainpic.Visible = false;
						maindiv.Visible = true;
						clients.Visible = false;
						break;
					case 4:
						mainpic.Visible = false;
						maindiv.Visible = false;
						clients.Visible = true;
						Clients myClient = new Clients();
						clientRepeater.DataSource = myClient.Fetch();
						clientRepeater.DataBind();
						break;
				}
			}[/red]
```

mvh icaaq

Permalänk: https://www.webforum.nu/p/901601

---

Tråden på webben: https://www.webforum.nu/amne/dotnet/63748-switch