---
title: "Parent Columns and Child Columns don't have type-matching columns..."
type: "forum-thread"
url: "https://www.webforum.nu/amne/dotnet/172098-parent-columns-and-child-columns-don-t-have-type-matching-columns"
topic: ".NET"
topic_url: "https://www.webforum.nu/amne/dotnet"
author: "Travoni"
published: "2008-06-09T15:01:49.000Z"
updated: "2008-06-09T15:04:17.000Z"
replies: 1
views: 355
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/172098-parent-columns-and-child-columns-don-t-have-type-matching-columns"
---

# Parent Columns and Child Columns don't have type-matching columns...

## #1 — Travoni, 2008-06-09T15:01Z

Försöker använda denna kod för att skapa en rekursiv meny:<http://weblogs.asp.net/alessandro/archive/2008/03/01/part-2-building-and-binding-hierarchical-data-from-the-database-to-the-asp-net-navigation-controls.aspx>
Men jag får fel på denna rad:

```
DataRelation dr = new DataRelation("FK_pageId_parentId", 
            ds.Tables["PageItem"].Columns["pageId"],
                        ds.Tables["PageItem"].Columns["parentId"]);
```

Parent Columns and Child Columns don't have type-matching columns...Tycker jag gjort så likt som det går.

Permalänk: https://www.webforum.nu/p/172098

## #2 — Travoni, 2008-06-09T15:04Z

Ooops, en kolumn var visst unsigned...

Permalänk: https://www.webforum.nu/p/2117370

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Tråden på webben: https://www.webforum.nu/amne/dotnet/172098-parent-columns-and-child-columns-don-t-have-type-matching-columns