dynamic

Dynamic Multidimensional array in C

由 有些话、适合烂在心里 提交于 2019-12-11 01:58:48
问题 reading a few articles on dynamic memory allocation for multidimensional arrays in c, I came across the following code snippet: (article link) #define COLS 5 int (*rptr)[COLS]; int main(void) { int nrows = 10; int row, col; rptr = malloc(nrows * COLS * sizeof(int)); for (row = 0; row < nrows; row++) for (col = 0; col < COLS; col++) rptr[row][col] = 17; return 0; } Here, a multidimensinal array is defined as int (*rptr)[COLS] and then dynamically linked to malloc(nrows * COLS * sizeof(int)).

Convert Html Table to Json when the column has input fields, linput text or select

由 戏子无情 提交于 2019-12-11 01:48:39
问题 How to convert HTML table to Javascript Object with jQuery An extension of this question. My table is dynamic its cells has Html content like Input to enter descritpion and Select for dropdown selection. So to get that html content to json object created this answered question. 回答1: A simple changing in the code and you can: // // for each table row in table body // var tbl = $('#students tbody tr').map(function (idxRow, ele) { // // start building the retVal object // var retVal = {id: +

Reload DOM after injecting form elements?

由 醉酒当歌 提交于 2019-12-11 01:40:29
问题 I'm trying to put together some jQuery code that will add form elements (input checkboxes) to a form, once the user performs a certain action. Later on the user can then submit this form. I'm entirely new to jQuery, but I've managed to put together some code that almost works. Here's what I've got: $("#someDivID").load("myPage.asp?id=x"); myPage.asp generates some form elements, and this all shows up nicely on the page. However, once I submit (through POST) the form, the new form elements are

Oracle sql query: pivot table with dynamicly filled for in (advanced)

由 谁都会走 提交于 2019-12-11 01:40:00
问题 I need to flatten an table, but here si the tricky part, the clomuns are dynamic and the query should work when new records are added containing a new ID. This is my working query (simplified the IN this is really hundreds of values): SELECT * FROM (select qv.respnr, sq.question_id, qv.question_value from survey_question sq, question_values qv where qv.question_id = sq.question_id and sq.survey_id = 1 order by qv.respnr, page, ranked) PIVOT ( MAX(question_value) --<-- pivot_clause FOR

Close dynamically created form with dynamic button

由 我的梦境 提交于 2019-12-11 01:36:19
问题 I'm trying to close a dynamically created form with a dynamic button (this is the simplest of my jobs, I am also adding other buttons to do other jobs but I figured this is a good place to start). As of now I can create the form, button and the click event for that button, but I don't know what to add within the click event function to close the host of that button. I am guessing I can somehow access the buttons parent through the click function? Or maybe pass the form control as an argument

django admin registering dynamic model from action

由 牧云@^-^@ 提交于 2019-12-11 00:48:29
问题 I have strange problem. In admin.py I can say: admin.site.register(MyModel) and this is obviously fine. Now I want this model to be loaded automatically as an result of user action: def user_action_from_admin_panel(......): ..... admin.site.register(MyModel) MyModel class gets shows up in the admin as plain text without links. Any ideas to solve this? 回答1: May be you need this from django.core.urlresolvers import clear_url_caches from django.utils.importlib import import_module def user

Dynamically adding text boxes in html using JavaScript (syntax error occurs)

由 给你一囗甜甜゛ 提交于 2019-12-11 00:35:27
问题 <!DOCTYPE html> <html> <head> <script type="text/javascript"> var i =1; function addkid(){ if(i<=3){ i++; var div=document.createElement('div'); div.innerHTML="Child:<input type="text" name="child_1"> <input type="button" id="add_kid()" onclick="addkid()" value="+" /> <input type="button" value="-" onclick="removekid(this)">"; document.getElementById('kids').appendChild(div); } } function removekid(div){ document.getElementById('kids'.removeChild(div.parentNode); i--; } </script> </head>

Batch file to copy files from a file contents

由 馋奶兔 提交于 2019-12-10 23:57:06
问题 I have a master file ( File1.txt ) where some names are maintained in the contents. I have to find all the files which has those kind of names (wild cards) in a folder and move them to a different folder using batch file program. Eg : File1.txt has contents abcd efgh now in the folder say c:\temp\Source i have files like 12abcd34.asc 56efgh78.asc testing.asc I have to move only those 2 files to a folder say c:\temp\Target. Here's my code, but it gives error saying i*.* is unexpected at this

sp_MSForEachDB Invalid Use of Side-Effecting Operator Within Function

由 落花浮王杯 提交于 2019-12-10 23:36:42
问题 Is there anyway to put the below code into a Table-Valued (inline or multi-statement) or even a View. I'm able to use it in a stored procedure but do to the inability to do joins to the results of stored procedures I'd rather put it in a Table-Valued function or View. Below is the SQL that gives me the results I'm looking for DECLARE @ColumnInformation TABLE ( DatabaseName NVARCHAR(255), TableSchema NVARCHAR(255), TableName NVARCHAR(255), ColumnName NVARCHAR(255), TableType NVARCHAR(255),

dynamic iterative programming to generate combinations

由 自作多情 提交于 2019-12-10 23:19:42
问题 Updated with my own version of the program : I'm trying to do an iterative dynamic programming to generate n choose k combination. Say I've 4 vectors of values v1 : 1 1 1 v2 : 2 2 2 v3 : 3 3 3 v4 : 4 4 4 Now I use addition as my aggregate function and I want to generate 4 choose 2 combinations of vectors as follows : v1v2 : 3 3 3 v1v3 : 4 4 4 v1v4 : 5 5 5 v2v3 : 5 5 5 v2v4 : 6 6 6 v3v4 : 7 7 7 A naive way to do this would be to go through every pair and find the result. if the N and k are
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