Mmmmm. Remember that the Page.DataBind does this for you, explicitly calling control.DataBind is probably a bad idea.
See:
Do you use Page.DataBind?
Avoid calling Page.DataBind and bind each control individually to optimize your data binding. Calling Page.DataBind recursively calls DataBind on each control on the page.
You’re best bet is to override DataBind and call base.DataBind()
An important reminder from our sponsors (oh, and just admit it… You can never remember this anyway):
From the 1.2 language spec:
The new operator automatically initializes the elements of an array to their default value, which, for example, is zero for all numeric types and null for all reference types.
Important notes about Array.Initialize()
It must not be used on reference-type arrays.
…
You can use this method only on value types that have constructors; however, value types that are native to C# do not have constructors.
And of course, if you don’t trust me, see for yourself.
Ever wanted to interleave multiple sources of data? Well I did, so I wrote this, which interleaves multiple (generic) lists into a single.
public static List<telement> Interleave<telement>(params List<telement>[] pvParamLists) { // if nothing is provided we'll simply return an empty list if (pvParamLists == null) return new List<telement>(); int listCount = pvParamLists.Length; // offset map indicating current position in a given list int[] pointerMap = new int[listCount]; // count total elements int resultSize = 0; foreach(List<telement> list in pvParamLists) { if (list != null) { resultSize += list.Count; } } // create our result list List<telement> interleavedList = new List<telement>(resultSize); // will quit when finished while (interleavedList.Count < resultSize) { for (int x = 0; x < listCount; x++) { if (pointerMap[x] != -1) { List<telement> currentList = pvParamLists[x]; // skip null or empty lists if ((currentList == null) || (currentList.Count == 0) || (pointerMap[x] >= currentList.Count)) { pointerMap[x] = -1; continue; } interleavedList.Add(currentList[pointerMap[x]++]); } } } return interleavedList; }
The whole file, including some unit tests is here.
For God’s sake, don’t ever write this (at least not again). Its such a trivial piece of code that I never bother librarifying it, and yet every time I write it I leave out the reset of the stream position. But, what do you expect… I’M A MONKEY!!!
public static Object XmlSerializationCopy(Object pvValue) { if (pvValue == null) return null; XmlSerializer ser = new XmlSerializer(pvValue.GetType()); // most are probably small. MemoryStream serStream = new MemoryStream(512); using(serStream) { ser.Serialize(serStream, pvValue); serStream.Position = 0; return ser.Deserialize(serStream); } }
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