I've currently got a DataGrid which is bound to a List. This List is populated through a database query. Now, I'd like to be able to select an item in the DataGrid, and move it up or down, and at the same time having it move in the List.  I thought about LinkedLists, because I also need to have the ability of inserting above or below specific spots in the list. However, I've only ever heard of LinkedLists and I'm not even sure where to start. Looking at the MSDN for it, there doesn't seem to be a built in MoveUp()/MoveDown() methods. I figure, if I can move it in the list, then getting it to move in the DataGrid will be simple.  My question is: Is there a way to move items up and down in a LinkedList or List?
So I have a generic list, and an oldIndex and a newIndex value.  I want to move the item at oldIndex, to newIndex...as simply as possible.  Any suggestions?  Note  The item should be end up between the items at (newIndex - 1) and newIndex before it was removed.
Number of non-isomorphic groups of order 21 How to kill The Twins In Terraria In Terraria I often try to defeat spazmatism first, but when he transformed, his flamethrower killed me. What is easiest way to kill The Twins? Does each imply the other? If not, does one imply the other? Why/why not?  This issue came up in response to a comment on an answer I posted .  Although google searching the relevant terms didn't produce anything that seemed particularly useful, I did notice  on the math stackexchange. However, I thought that this question was appropriate for this site too.  EDIT after reading the comments  Relative to the math.stackexchange answer I was after something more in depth, covering some of the issues dealt with in . Also, as I see it the math.stackexchange question shows that consistency doesn't imply asymptotically unbiasedness but doesn't explain much if anything about why. The OP there also takes for granted that asymptotic unbiasedness doesn't imply consistency, and thus the sole answerer so far doesn't address why this is. Omitting the hypotheses of finiteness of the measure in Egorov theorem I want to prove that if I omit the fact that $\mu (X) &lt; \infty$ in Egorov theorem and place instead that our functions $|f_n| &lt;g$ and $g$ is integrable, we still get the result of Egorov's theorem.  Fix $m$ a natural number.  I took $ w_{n} = |f_n-f|$ and thus by DCT $\int |f_{n} - f|$ goes to zero.  Then I took $\bigcup_n {( w_{n} \geq 1/m)}$. I need its measure to be finite. Its measure is less than the sum of the measures of each $ w_n\geq 1/m)$ varying $n$, and by Tchebychev, this is less than $m\int|f_{n} - f|$.  But I got stuck here.  Any help is appreciated. Thanks! I have the Blender 2.8 version from the 21st Sep 2018 I was looking forward to render a test sequence but cannot find a render button anywhere? Does anyone know where to find it? My problem: Prove that a set of vectors $S$ is linearly independent if and only if any finite subset of $S$ is linearly independent.  I tried like this:  Suppose S is LI.Then the vector $0$ cannot be expressed as a linear sum of all elements of $S$.  How it follows that a finite subset is also LI from this fact. I think $S$ can be finite or infinite.  This is a question from the book Linear Algebra - Friedberg et al. can't find using System.Web.UI.HtmlControls namespace How to cite own unpublished work in text and reference? I would like to cite one of my own unpublished work (under review). Is it okay to cite as following?  In text According to author et al. (year of submission)................. In reference authors list, year of submission, title, name of the Journal (status)   How about the results?   How will the reviewer access those results cited here?   Is it okay to provide them as supplements?   If I provide couple of figures as supplements, whether it will violate the copyright of the under reviewed paper? How can I get the HTML source of a given web address in C#? Overriding public virtual functions with private functions in C++ Describe the set of points on the complex plane... A single row background colour Minimum value of $\left(a+\frac{1}{b}\right)^2+\left(b+\frac{1}{c}\right)^2+\left(c+\frac{1}{a}\right)^2$ Given $a,b,c \in \mathbb{R^+}$ such that $a+b+c=12$   Find Minimum value of $$S=\left(a+\frac{1}{b}\right)^2+\left(b+\frac{1}{c}\right)^2+\left(c+\frac{1}{a}\right)^2$$  My Try: By Cauchy Schwarz Inequality we have  $$\left(a+\frac{1}{b}\right)+\left(b+\frac{1}{c}\right)+\left(c+\frac{1}{a}\right)\le \sqrt{3}\sqrt{S}$$  $\implies$  $$\sqrt{3S} \ge 12+\frac{1}{a}+\frac{1}{b}+\frac{1}{c}$$  Now by $AM \ge HM $ inequality we have  $$\frac{a+b+c}{3} \ge \frac{3}{\frac{1}{a}+\frac{1}{b}+\frac{1}{c}}$$ $\implies$  $$\frac{1}{a}+\frac{1}{b}+\frac{1}{c} \ge \frac{3}{4}$$  hence  $$\sqrt{3S} \ge 12+\frac{3}{4}=\frac{51}{4}$$  hence  $$3S \ge \frac{2601}{16}$$  so $$S \ge \frac{867}{16}$$  is this approach correct and any better approach please share. Tricks for getting lots of arrows? Any tips or tricks for getting arrows (besides cheating)? Or tricks for finding a skeleton spawn?  I've tried farming chickens and gravel for feathers and flint, but it takes a ridiculously long time. How do people get enough arrows to make using a bow actually feasible? I changed my username and now I cannot play online How to align checkboxes and their labels consistently cross-browsers Can I connect to SQL Server using Windows Authentication from Java EE webapp? An arithmetic function is defined as follows:$f(1)=1$,  $f(2k)=k$ and $f(2k+1)=f(k)+f(k+1)$. When (for which $k$) is $f(k)$ even?  While it is obvious that $f(4n-1)=f(4n)=2n$, therefore $f(k)$ is even for $k=4n$ and $k=4n-1$, which is possible to prove using induction (isn't it?), I don't know how to prove the converse.  I tried to solve the recurrence or make use of constant difference between certain elements of the sequence $\ldots$ What am I missing?  Thank you. I am wondering whether there is any difference between a gerund acting as subject and an infinitive acting as a subject. How many ordered pairs $(A,B)$ they are if $A$ and $B$ are subsets of $\{ 1,2,3,4,5 \}$ such that $A \cap B = \{1\}$? How many ordered pairs $(A,B)$ they are if $A$ and $B$ are subsets of $\{ 1,2,3,4,5 \}$ such that $A \cap B = \{1\}$?  If 1 is in both sets :  Size of $A$ is $&gt;1$ and size of $B$ is $&gt;1$.  $\Rightarrow$ Size of $A \cup B =4$  $$5 \cdot (3 \cdot 3 \cdot 3 \cdot 3) = 405$$ is not correct.  What am I missing here?