{"id":1524,"date":"2023-11-17T21:36:05","date_gmt":"2023-11-17T21:36:05","guid":{"rendered":"https:\/\/exceladvisor.org\/it\/tabella-dinamica\/"},"modified":"2023-12-10T06:22:53","modified_gmt":"2023-12-10T06:22:53","slug":"tabella-dinamica","status":"publish","type":"page","link":"https:\/\/exceladvisor.org\/it\/tabella-dinamica\/","title":{"rendered":"Come creare una tabella dinamica in vba?"},"content":{"rendered":"<div class=\"excel-prima-del-contenuto\" id=\"excel-125532823\"><script type=\"text\/javascript\">\r\n\tatOptions = {\r\n\t\t'key' : 'c1158f160081d6540a8409e6925dab94',\r\n\t\t'format' : 'iframe',\r\n\t\t'height' : 250,\r\n\t\t'width' : 300,\r\n\t\t'params' : {}\r\n\t};\r\n<\/script>\r\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/c1158f160081d6540a8409e6925dab94\/invoke.js\"><\/script><\/div> <p>Un array dinamico \u00e8 qualcosa in cui puoi ridimensionare l&#8217;array e aggiungervi pi\u00f9 valore durante l&#8217;esecuzione del codice. In questo tutorial esploreremo i modi per scrivere codice in cui puoi ridimensionare e aggiungere pi\u00f9 elementi.<\/p><h2 class=\"wp-block-heading\"> Crea una tabella dinamica in VBA<\/h2><ol type=\"1\"><li> Innanzitutto, dichiara un array con il suo nome.<\/li><li> Successivamente, il numero di elementi ha lasciato le parentesi vuote.<\/li><li> Ora usa l&#8217;istruzione ReDim.<\/li><li> Alla fine, specifica il numero di elementi che desideri aggiungere all&#8217;array. <\/li><\/ol><pre class=\"wp-block-code\"> <code class=\"language-visual-basic\" lang=\"visual-basic\">Dim myArray() As String ReDim myArray(5)<\/code><\/pre><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-57185\" src=\"https:\/\/exceladvisor.org\/wp-content\/uploads\/2023\/08\/1-tableau-dynamique-en-vba-1.png\" sizes=\"auto, \" srcset=\"\" alt=\"array dinamico in vba\" width=\"386\" height=\"292\"><\/figure><\/div><p> Non dimenticare di leggere <a href=\"https:\/\/bytecomb.com\/vba-internals-performance-of-fixed-vs-dynamic-arrays\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">questo articolo<\/a> di Joshua sulle prestazioni degli array fissi e dinamici.<\/p><h2 class=\"wp-block-heading\"> Array multidimensionale dinamico<\/h2><p> L&#8217;esempio che abbiamo utilizzato era un array unidimensionale e allo stesso modo puoi utilizzare anche l&#8217;istruzione ReDim per creare array multidimensionali dinamici. <\/p><pre class=\"wp-block-code\"> <code class=\"language-visual-basic\" lang=\"visual-basic\">Dim myArray() As String ReDim myArray(5, 8)<\/code><\/pre><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-57186\" src=\"https:\/\/exceladvisor.org\/wp-content\/uploads\/2023\/08\/2-reseau-dynamique-multidimensionnel-2.png\" sizes=\"auto, \" srcset=\"\" alt=\"\" width=\"428\" height=\"310\"><\/figure><\/div><h2 class=\"wp-block-heading\"> Aggiungi un nuovo elemento a un array dinamico in VBA<\/h2><p> Un array dinamico non avr\u00e0 senso se non puoi aggiungervi un nuovo elemento. Nel prossimo esempio vedremo come aggiungere nuovi elementi una volta ridefinito il numero di elementi in un array.<\/p><pre class=\"wp-block-code\"> <code class=\"language-visual-basic\" lang=\"visual-basic\">'declaring array with no element. '--------------------- Dim iNames() As String '--------------------- 'declaring variables to store counter _ 'and elements from the range. '---------------------- Dim iCount As Integer Dim iElement As Integer '---------------------- 'get the last row number to decide the _ 'number of elements for the array. '------------------------------------ iCount = Range(\"A1\").End(xlDown).Row '------------------------------------ 're-defining the elements for the array. '------------------- ReDim iNames(iCount) '------------------- 'using a for loop to add elements in the array 'from the range starting from cell A1 '-------------------------------------------------- For iElement = 1 To iCount iNames(iElement - 1) = Cells(iElement, 1).Value Next iElement '-------------------------------------------------- 'print all the elements from the 'to the immediate window '-------------------- Debug.Print iNames(0) Debug.Print iNames(1) Debug.Print iNames(2) '--------------------<\/code><\/pre><p> Comprendiamo questo codice passo dopo passo.<\/p><ol type=\"1\"><li> Nel primo passaggio hai dichiarato un array con il nome &#8220;myArray&#8221;.<\/li><li> Dopodich\u00e9 hai due variabili per salvare i valori del contatore per il ciclo che dovrai utilizzare pi\u00f9 avanti nel codice per ottenere valori dall&#8217;intervallo e aggiungere tali valori come elementi all&#8217;array.<\/li><li> Quindi hai una riga di codice per ottenere l&#8217;ultima riga dell&#8217;intervallo che ti aiuta a sapere quali elementi devi aggiungere all&#8217;array.<\/li><li> Nel quarto passaggio \u00e8 stata utilizzata l&#8217;istruzione ReDim per ridefinire gli elementi dell&#8217;array utilizzando l&#8217;ultimo numero di riga ottenuto nel passaggio precedente.<\/li><li> Poi hai FOR LOOP (For Next) che scorre l&#8217;intervallo partendo dalla cella A1, prende i valori da l\u00ec e li aggiunge come elementi all&#8217;array uno per uno.<\/li><li> Alla fine, hai l&#8217;istruzione Debug.Print per stampare tutti gli elementi nella <a href=\"https:\/\/exceladvisor.org\/it\/stampa-immediata-del-debug-della-finestra\/\">finestra immediata<\/a> . <\/li><\/ol><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-57187\" src=\"https:\/\/exceladvisor.org\/wp-content\/uploads\/2023\/08\/3-ajouter-un-nouvel-element-au-tableau-dynamique-3.png\" sizes=\"auto, \" srcset=\"\" alt=\"\" width=\"623\" height=\"329\"><\/figure><\/div><p> E quando aggiungo un nuovo valore all&#8217;intervallo ed eseguo nuovamente il codice, aggiunge automaticamente quell&#8217;elemento all&#8217;array e lo stampa nella <a href=\"https:\/\/exceladvisor.org\/it\/stampa-immediata-del-debug-della-finestra\/\">finestra immediata<\/a> . <\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-57188\" src=\"https:\/\/exceladvisor.org\/wp-content\/uploads\/2023\/08\/4-ajouter-une-nouvelle-valeur-a-la-plage-4.png\" sizes=\"auto, \" srcset=\"\" alt=\"\" width=\"549\" height=\"397\"><\/figure><\/div><div class=\"gb-container gb-container-4db6181c gb-container-mt\"> <a class=\"gb-button gb-button-c5897111 gb-button-text gb-button-mt-button\" href=\"https:\/\/exceladvisor.org\/it\/vba\/\">Cos&#8217;\u00e8 VBA<\/a><h2 class=\"gb-headline gb-headline-665e5f6b gb-headline-text gb-headline-mt-heading\"> Ulteriori informazioni sulle <a href=\"https:\/\/exceladvisor.org\/it\/dipinti\/\">tabelle VBA<\/a> <\/h2><div class=\"gb-grid-wrapper gb-grid-wrapper-a20baf7c gb-grid-wrapper-mt-grid\"><div class=\"gb-grid-column gb-grid-column-65ddf67e\"><div class=\"gb-container gb-container-65ddf67e\"><ul><li> <a href=\"https:\/\/exceladvisor.org\/it\/aggiungere-una-nuova-matrice-di-valori\/\">VBA Aggiungi un nuovo valore all&#8217;array<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/dimensione-della-matrice\/\">Lunghezza dell&#8217;array VBA (dimensione)<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/tavolo-con-catene\/\">Array VBA con stringhe<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/cancella-la-lavagna\/\">Cancella matrice VBA<\/a> <\/li><\/ul><\/div><\/div><div class=\"gb-grid-column gb-grid-column-50067b57\"><div class=\"gb-container gb-container-50067b57\"><ul><li> <a href=\"https:\/\/exceladvisor.org\/it\/array-di-loop-vba\/\">Ciclo VBA in un array<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/matrice-multidimensionale\/\">Array multidimensionale VBA<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/la-spiaggia-ha-un-dipinto\/\">Intervallo VBA in un array<\/a><\/li><li> <a href=\"https:\/\/exceladvisor.org\/it\/tavolo-di-smistamento\/\">Tabella di output VBA<\/a><\/li><\/ul><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"ub_ctt_via":"","footnotes":""},"class_list":["post-1524","page","type-page","status-publish","hentry"],"featured_image_src":null,"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u25b7 Come creare una tabella dinamica in VBA (ReDim)?<\/title>\n<meta name=\"description\" content=\"In questo tutorial imparerai come creare una tabella dinamica in cui puoi 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