setting a dropdown list to its default value c#
I have a dropdownlist which has a one hardcoded line as follows.
ddlDepartment.Items.Insert(0, new ListItem("Select the Department", "0"));
after clicking a button I need to set the 0th value. any tip? TIA.
do you know?
how many words do you know
See also questions close to this topic
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C# - Adding condition to func results in stack overflow exception
I have a func as part of specification class which sorts the given iqueryable
Func<IQueryable<T>, IOrderedQueryable<T>>? Sort { get; set; }
When i add more than one condition to the func like below , it results in stack overflow exception.
spec.OrderBy(sc => sc.Case.EndTime).OrderBy(sc => sc.Case.StartTime);
The OrderBy method is implemented like this
public ISpecification<T> OrderBy<TProperty>(Expression<Func<T, TProperty>> property) { _ = Sort == null ? Sort = items => items.OrderBy(property) : Sort = items => Sort(items).ThenBy(property); return this; }
Chaining or using separate lines doesn't make a difference.
This problem gets resolved if I assign a new instance of the specification and set it's func, but i don't want to be assigning to a new instance everytime. Please suggest what am i missing here and how to reuse the same instance (if possible).
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How to projection fields for a dictionary (C#, MongdoDB)
I am trying my luck here, I have a model which is like the following
public class RowData : BaseBsonDefinition { . [BsonExtraElements] [BsonDictionaryOptions(DictionaryRepresentation.ArrayOfDocuments)] public Dictionary<string, object> Rows { get; set; } = new(StringComparer.OrdinalIgnoreCase); . }
In result, the schema in the MongoDB looks like
{ "_id": { "$binary": { "base64": "HiuI1sgyT0OZmcgGUit2dw==", "subType": "03" } }, "c1": "AAA", "c8": "Fully Vac", "c10": "", }
Those c1, c8 and c10 fields are keys from the dictionary, my question is how to dynamic project those fields?
I tried
Builders<RowData>.Projection.Exclude(p => "c1")
It seems the MongoDB driver can not handle a value directly.
Anyone could point me in the correct direction?
Thanks,
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How do I add new DataSource to an already Databinded CheckBoxList
i'm building a web form that show Database's item(Tables, Rows, FK,...)
I have a CheckBoxList of Tables (
chkListTable
) which will show a new CheckBoxList of Rows (chkListRow
) everytime I SelectedIndexChanged fromchkListTable
. The problem is i can show the items fromchkListTable
with 1 selected item. But i don't know how to showchkListRow
if multiple item fromchkListTable
are selected.Here are my codes:
aspx
:<div> <asp:Label ID="Label2" runat="server" Text="Table: "></asp:Label> <asp:CheckBoxList ID="chkListTable" runat="server" DataTextField="name" DataValueFeild="name" AutoPostBack="true" OnSelectedIndexChanged="chkListTable_SelectedIndexChanged"> </asp:CheckBoxList> </div> <div> <asp:CheckBoxList ID="chkListRow" runat="server" DataTextField="COLUMN_NAME" DataValueField="COLUMN_NAME" RepeatDirection="Horizontal"> </asp:CheckBoxList> </div>
aspx.cs
:protected void chkListTable_SelectedIndexChanged(object sender, EventArgs e) { tableName.Clear(); foreach (ListItem item in chkListTable.Items) { if(item.Selected) { tableName.Add(item.Text.Trim()); } } for(int i = 0; i < tableName.Count; i++) { String query = "USE " + dbname + " SELECT * FROM information_schema.columns" + " WHERE table_name = '" + tableName[i] + "'" + " AND COLUMN_NAME != 'rowguid'"; chkListRow.DataSource = Program.ExecSqlDataReader(query); chkListRow.DataBind(); Program.conn.Close(); } }
Program.cs
:public static bool Connect() { if (Program.conn != null && Program.conn.State == ConnectionState.Open) Program.conn.Close(); try { Program.conn.ConnectionString = Program.constr; Program.conn.Open(); return true; } catch (Exception e) { return false; } } public static SqlDataReader ExecSqlDataReader(String query) { SqlDataReader myreader; SqlCommand sqlcmd = new SqlCommand(query, Program.conn); sqlcmd.CommandType = CommandType.Text; if (Program.conn.State == ConnectionState.Closed) Program.conn.Open(); try { myreader = sqlcmd.ExecuteReader(); return myreader; myreader.Close(); } catch (SqlException ex) { Program.conn.Close(); return null; } }
I want my display to be like this:
[x]Table1 [x]Table2 [ ]Table3 [ ]Row1(Table1) [ ]Row2(Table1) [ ]Row3(Table1) [ ]Row1(Table2) [ ]Row2(Table2)
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Creating Sticky Navbar with Drop Down Menu HTML
I am creating a HTML web page which contains a sticky navbar with drop down menu. However, when I created one, the dropdown menu does not works in the sticky navbar and so goes vise versa. below is the screenshot of both the result of the two codes.
*image with dropdown menu but without sticky navbar
*image with sticky navbar but without dropdown menu
below is the code for "image with dropdown menu but without sticky navbar"
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font- awesome/4.7.0/css/font-awesome.min.css"> <style> body {margin:0;font-family:Arial} .topnav { overflow: hidden; background-color: #333; } .topnav a { list-style-type: none; float: left; display: block; color: #f2f2f2; text-align: center; padding: 14px 16px; text-decoration: none; font-size: 17px; position: sticky; } .active { background-color: #04AA6D; color: white; } .topnav .icon { display: none; } .dropdown { float: left; overflow: hidden; } .dropdown .dropbtn { font-size: 17px; border: none; outline: none; color: white; padding: 14px 16px; background-color: inherit; font-family: inherit; margin: 0; } .dropdown-content { display: none; position: absolute; background-color: #f9f9f9; min-width: 160px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1; } .dropdown-content a { float: none; color: black; padding: 12px 16px; text-decoration: none; display: block; text-align: left; } .topnav a:hover, .dropdown:hover .dropbtn { background-color: #555; color: white; } .dropdown-content a:hover { background-color: #ddd; color: black; } .dropdown:hover .dropdown-content { display: block; } @media screen and (max-width: 600px) { .topnav a:not(:first-child), .dropdown .dropbtn { display: none; } .topnav a.icon { float: right; display: block; } } @media screen and (max-width: 600px) { .topnav.responsive {position: relative;} .topnav.responsive .icon { position: absolute; right: 0; top: 0; } .topnav.responsive a { float: none; display: block; text-align: left; } .topnav.responsive .dropdown {float: none;} .topnav.responsive .dropdown-content {position: relative;} .topnav.responsive .dropdown .dropbtn { display: block; width: 100%; text-align: left; } } </style> </head> <body> <div class="header"> <h2>Scroll Down</h2> <p>Scroll down to see the sticky effect.</p> </div> <div class="topnav" id="myTopnav"> <a href="#home" class="active">Home</a> <a href="#news">News</a> <a href="#contact">Contact</a> <div class="dropdown"> <button class="dropbtn">Dropdown <i class="fa fa-caret-down"></i> </button> <div class="dropdown-content"> <a href="#">Link 1</a> <a href="#">Link 2</a> <a href="#">Link 3</a> </div> </div> <a href="#about">About</a> <a href="javascript:void(0);" style="font-size:15px;" class="icon" onclick="myFunction()">☰</a> </div> <div style="padding-left:16px"> <h2>Responsive Topnav with Dropdown</h2> <p>Resize the browser window to see how it works.</p> <p>Hover over the dropdown button to open the dropdown menu.</p> </div> <h3>Sticky Navigation Bar Example</h3> <p>The navbar will <strong>stick</strong> to the top when you reach its scroll position.</p> <p><strong>Note:</strong> Internet Explorer do not support sticky positioning and Safari requires a -webkit- prefix.</p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <script> function myFunction() { var x = document.getElementById("myTopnav"); if (x.className === "topnav") { x.className += " responsive"; } else { x.className = "topnav"; } } </script> </body> </html>
below is the code for "image with sticky navbar but without dropdown menu"
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font- awesome/4.7.0/css/font-awesome.min.css"> <style> body { font-size: 20px; } body {margin:0;} ul { list-style-type: none; margin: 0; padding: 0; overflow: hidden; background-color: #333; position: -webkit-sticky; /* Safari */ position: sticky; top: 0; } li { float: left; } li a { display: block; color: white; text-align: center; padding: 16px 20px; text-decoration: none; } li a:hover { background-color: #111; } /*======================================================================*/ body { background-color:white; } ul { list-style-type: none; margin: 0; padding: 0; overflow: hidden; background-color: #38444d; } li { float: left; } li a, .dropbtn { display: inline-block; color: white; text-align: center; padding: 14px 16px; text-decoration: none; } li a:hover, .dropdown:hover .dropbtn { background-color: red; } li.dropdown { display: inline-block; } .dropdown-content { display: none; position: absolute; background-color: #f9f9f9; min-width: 160px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1; } .dropdown-content a { color: black; padding: 12px 16px; text-decoration: none; display: block; text-align: left; } .dropdown-content a:hover {background-color: #f1f1f1;} .dropdown:hover .dropdown-content { display: block; } footer { text-align: center; padding: 3px; background-color: DarkSalmon; color: white; } </style> </head> <body> <div class="header"> <h2>Scroll Down</h2> <p>Scroll down to see the sticky effect.</p> </div> <ul> <li><a href="#home">Home</a></li> <li><a href="#news">News</a></li> <li class="dropdown"> <a href="javascript:void(1)" class="dropbtn">Dropdown</a> <div class="dropdown-content"> <a href="#">Link 1</a> <a href="#">Link 2</a> <a href="#">Link 3</a> </div> </li> </ul> <h3>Sticky Navigation Bar Example</h3> <p>The navbar will <strong>stick</strong> to the top when you reach its scroll position.</p> <p><strong>Note:</strong> Internet Explorer do not support sticky positioning and Safari requires a -webkit- prefix.</p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <p>Some text to enable scrolling. </p> <footer> <p>Author: Hege Refsnes<br> <a href="mailto:hege@example.com">hege@example.com</a></p> </footer> </body> </html>
Please i need some help with this as i am new to html and css.
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Javascript: Change element class if button has a certain value
<div class="main-div main-div2"> <!-- IF up to date, main-div3 --> <button id="update-btn" class="btn update-btn"> Up to date </button> </div>
I want to make it so if update-btn has a value of "Up to date", change the div class from "main-div main-div2" to "main-div main-div3". Otherwise, if it's any other value, change it to "main-div main-div2"
What kind of loop would be good for this Javascript function too if I want it to be checking constantly?
Thank you.
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Boostrap vertical sizing with different style width and height
I am trying to set verticaly icon on profile photo card inside div to be in the middle in white box(div), but dont know why it doesnt works. When I use
style="width: 300px; height: 300px;
for div square I can center it on horizontaly, but not verticaly :/ Can someone explain me what I am doing wrong?Anyway is there any way how to resize bootstrap icons except display-1???
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous"> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.8.1/font/bootstrap-icons.css"> <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/popper.js@1.12.9/dist/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script> <script src="https://cdn.jsdelivr.net/npm/bootstrap@4.0.0/dist/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script> <div class="container-sm offset-md"> <h1 class="p-4 m-4">Nastavení profilu</h1> <div class="row"> <div class="col"> <div class="card p-4 m-4"> Osobní údaje <input type="text" name="name" class="form-control" placeholder="Jméno"> <input type="text" name="surname" class="form-control" placeholder="Příjmení"> <input type="email" name="email" class="form-control" placeholder="E-Mail"> <input type="date" name="name" class="form-control"> </div> </div> <div class="col-4"> <div class="card p-4 m-4 bg-light"> Profilová fotografie <div class=" square text-center border display-1 m-3 bg-white mx-auto"> <i class="bi bi-person-fill align-middle justify-content-center text-secondary"></i> </div> <input type="file" id="customFile" name="file" hidden=""> <div class="text-center"> <button class="btn btn-success" for="customFile">Nahrát</button> <button type="button" class="btn btn-danger">Smazat</button> <p class="text-muted mt-3 mb-0">Poznámka: Minimální velikost 300px x 300px</p> </div> </div> </div> </div> <div class="row"> <div class="col"> <div class="card p-4 m-4"> Změna hesla </div> </div> <div class="col"> <div class="card p-4 m-4"> Zobrazit/skrýt podrobnosti </div> </div> </div> </div>
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Writing multithreaded code to generate incremental index
I want to write a code in following scenario : we want to design an invoice generator.this invoice generator also generates an incremental invoice no .Also note that for some reasons we dont use something like sql Auto Increment here and we want to use C# (I wrote the increment logic). since several users can send requests at a time it means that we dont have to give the same invoice no to them (I used lock for it and I wrote it).
Now i have written increment logic. and i take care of multiple users requests with lock . and I wrote CRUD for mongodb database.
My problem is that my increent logic is naive. each time i find maximum and i increment by one which is not scalable. and another problem is that when we delete a record we don't want the invoice no to be repeated and since we find max if the deleted record had the max value then the invoice no would be duplicate and this is something we don't want to have.
I really don't know how to handle the problem. specially in case of deletion should i store max values in a file or should i change increment logic completely?
i appreciate any help
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Scraping .aspx page with Python yields 404
I'm a web-scraping beginner and am trying to scrape this webpage: https://profiles.doe.mass.edu/statereport/ap.aspx
I'd like to be able to put in some settings at the top (like District, 2020-2021, Computer Science A, Female) and then download the resulting data for those settings.
Here's the code I'm currently using:
import requests from bs4 import BeautifulSoup url = 'https://profiles.doe.mass.edu/statereport/ap.aspx' with requests.Session() as s: s.headers['User-Agent'] = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:100.0) Gecko/20100101 Firefox/100.0" r = s.get('https://profiles.doe.mass.edu/statereport/ap.aspx') soup = BeautifulSoup(r.text,"lxml") data = {i['name']:i.get('value','') for i in soup.select('input[name]')} data["ctl00$ContentPlaceHolder1$ddReportType"]="DISTRICT", data["ctl00$ContentPlaceHolder1$ddYear"]="2021", data["ctl00$ContentPlaceHolder1$ddSubject"]="COMSCA", data["ctl00$ContentPlaceHolder1$ddStudentGroup"]="F", p = s.post(url,data=data)
When I print out
p.text
, I get a page with title'\t404 - Page Not Found\r\n'
and message<h2>We are unable to locate information at: <br /><br ' '/>http://profiles.doe.mass.edu:80/statereport/ap.aspxp?ASP.NET_SessionId=bxfgao54wru50zl5tkmfml00</h2>\r\n'
Here's what
data
looks like before I modify it:{'__EVENTVALIDATION': '/wEdAFXz4796FFICjJ1Xc5ZOd9SwSHUlrrW+2y3gXxnnQf/b23Vhtt4oQyaVxTPpLLu5SKjKYgCipfSrKpW6jkHllWSEpW6/zTHqyc3IGH3Y0p/oA6xdsl0Dt4O8D2I0RxEvXEWFWVOnvCipZArmSoAj/6Nog6zUh+Jhjqd1LNep6GtJczTu236xw2xaJFSzyG+xo1ygDunu7BCYVmh+LuKcW56TG5L0jGOqySgRaEMolHMgR0Wo68k/uWImXPWE+YrUtgDXkgqzsktuw0QHVZv7mSDJ31NaBb64Fs9ARJ5Argo+FxJW/LIaGGeAYoDphL88oao07IP77wrmH6t1R4d88C8ImDHG9DY3sCDemvzhV+wJcnU4a5qVvRziPyzqDWnj3tqRclGoSw0VvVK9w+C3/577Gx5gqF21UsZuYzfP4emcqvJ7ckTiBk7CpZkjUjM6Z9XchlxNjWi1LkzyZ8QMP0MaNCP4CVYJfndopwFzJC7kI3W106YIA/xglzXrSdmq6/MDUCczeqIsmRQGyTOkQFH724RllsbZyHoPHYvoSAJilrMQf6BUERVN4ojysx3fz5qZhZE7DWaJAC882mXz4mEtcevFrLwuVPD7iB2v2mlWoK0S5Chw4WavlmHC+9BRhT36jtBzSPRROlXuc6P9YehFJOmpQXqlVil7C9OylT4Kz5tYzrX9JVWEpeWULgo9Evm+ipJZOKY2YnC41xTK/MbZFxsIxqwHA3IuS10Q5laFojoB+e+FDCqazV9MvcHllsPv2TK3N1oNHA8ODKnEABoLdRgumrTLDF8Lh+k+Y4EROoHhBaO3aMppAI52v3ajRcCFET22jbEm/5+P2TG2dhPhYgtZ8M/e/AoXht29ixVQ1ReO/6bhLIM+i48RTmcl76n1mNjfimB8r3irXQGYIEqCkXlUHZ/SNlRYyx3obJ6E/eljlPveWNidFHOaj+FznOh264qDkMm7fF78WBO2v0x+or1WGijWDdQtRy9WRKXchYxUchmBlYm15YbBfMrIB7+77NJV+M6uIVVnCyiDRGj+oPXcTYxqSUCLrOMQyzYKJeu8/hWD0gOdKeoYUdUUJq4idIk+bLYy76sI/N2aK+aXZo/JPQ+23gTHzIlyi4Io7O6kXaULPs8rfo8hpkH1qXyKb/rP2VJBNWgyp8jOMx9px+m4/e2Iecd86E4eN4Rk6OIiwqGp+dMdgntXu5ruRHb1awPlVmDw92dL1P0b0XxJW7EGfMzyssMDhs1VT6K6iMUTHbuXkNGaEG1dP1h4ktnCwGqDLVutU6UuzT6i4nfqnvFjGK9+7Ze8qWIl8SYyhmvzmgpLjdMuF9CYMQ2Aa79HXLKFACsSSm0dyiU1/ZGyII2Fvga9o+nVV1jZam3LkcAPaXEKwEyJXfN/DA7P4nFAaQ+QP+2bSgrcw+/dw+86OhPyG88qyJwqZODEXE1WB5zSOUywGb1/Xed7wq9WoRs6v8rAK5c/2iH7YLiJ4mUVDo+7WCKrzO5+Hsyah3frMKbheY1acRmSVUzRgCnTx7jvcLGR9Jbt6TredqZaWZBrDFcntdg7EHd7imK5PqjUld3iCVjdyO+yLKUkMKiFD85G3vEferg/Q/TtfVBqeTU0ohP9d+CsKOmV/dxVYWEtBcfa9KiN6j4N8pP7+3iUOhajojZ8jV98kxT0zPZlzkpqI4SwR6Ys8d2RjIi5K+oQul4pL5u+zZvX0lsLP9Jl7FeVTfBvST67T6ohz8dl9gBfmmbwnT23SyuFSUGd6ZGaKE+9kKYmuImW7w3ePs7C70yDWHpIpxP/IJ4GHb36LWto2g3Ld3goCQ4fXPu7C4iTiN6b5WUSlJJsWGF4eQkJue8=', '__VIEWSTATE': '/wEPDwUKLTM0NzY4OTQ4NmRkDwwPzTpuna+yxVhQxpRF4n2+zYKQtotwRPqzuCkRvyU=', '__VIEWSTATEGENERATOR': '2B6F8D71', 'ctl00$ContentPlaceHolder1$btnViewReport': 'View Report', 'ctl00$ContentPlaceHolder1$hfExport': 'ViewReport', 'leftNavId': '11241', 'quickSearchValue': '', 'runQuickSearch': 'Y', 'searchType': 'QUICK', 'searchtext': ''}
Following suggestions from similar questions, I've tried playing around with the parameters, editing
data
in various ways (to emulate the POST request that I see in my browser when I navigate the site myself), and specifying anASP.NET_SessionId
, but to no avail.How can I access the information from this website?
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Display Data from MYSQL using PHP Dropdown
I need to display data from the 'Members' table based on the selected 'grad_date' from a drop down. I have been trying to do it for a while now but have struggled to get it to work. Currently I have:
<body> <!-- HTML code can reside ABOVE and BELOW the starting and closing PHP tags --> Select Grad Date <?php require_once 'login_name.php'; $db_server = mysqli_connect(...) if (!$db_server) die("Unable to connect to MySQL: " . mysqli_error($db_server)); $sql = "SELECT DISTINCT grad_date FROM Members;"; //As we have already connected to the database, execute the query stored in the $sql variable $result = mysqli_query($db_server, $sql); //Check if the query was successfully executed: if the result is NOT FALSE //More advanced logic can also be done based on success or failure if($result) { //Create Drop-Down Menu echo "<select name='Members'>"; while($row=mysqli_fetch_assoc($result)) { //Store each SQL row's column name/value pair in a PHP variable foreach($row as $key=>$value) ${$key}=$value; //Load data onto drop-down menu echo "<option value='$grad_date'>$grad_date</option>"; } echo "</select>"; } ?> <table> <thead> <th> member_id </th> <th> member_first_name </th> <th> member_last_name </th> <th> team_id </th> </thead> <tbody> </tbody> </table> <!-- HTML code can reside ABOVE and BELOW the starting and closing PHP tags --> </body>
I have tried a couple different things to go from here but have not found any success. How can I do this?
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create a select box in which data is populated from selecting another select box and it is editable
I have created two select box. in both, fetching data from database. By selecting first select box the second select box gets auto populated. What I want to do is that this second select box should be editable that is the user can type input also. What I have done now is that used datalist for second select box which is doing the thing, but I want to show the auto populated data as selected option in datalist
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Excel Single Use Dropdownlist
My problem is the following. I have two tables. The first table is a guest list where the information on who is the guest and how many beds he need is stored. Screenshot And the second table contains the Apartment names and the number of provided beds. Now I want to make a dropdown list in the guest list table where only Beds are shown that provide the right amount of beds. And after a Apartment is selected it cant be picked a second time. Can someone provide me a code for this solution? Thank you very much!
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How to add the UIA ExpandCollapse pattern in Qml
I'm using http://accessibilityinsights.io/ to make sure my QML application passes Microsoft requirements for accessibility.
There's only one error that I couldn't resolve.
Qml ComboBoxes don't have the ExpandCollapse pattern.
Code to reproduce:
ComboBox { model: ["First", "Second", "Third"] }
Accessibility Insights says "An element of the given ControlType must support the ExpandCollapse pattern. Section 508 502.3.10
And "How to fix": 1. Make sure the element has the appropriate ControlType property for its function. 2. If the current ControlType is correct, modify the element to support the ExpandCollapse pattern.
StackOverflow couldn't help me. Google couldn't help me (I tried looking everywhere...)
So I went to Qt's source code.
I found this: qt-everywhere-src-6.2.1\qtbase\src\plugins\platforms\windows\uiautomation\qwindowsuiamainprovider.cpp
And here's the part that was interesting:
case UIA_ExpandCollapsePatternId: // Menu items with submenus. if (accessible->role() == QAccessible::MenuItem && accessible->childCount() > 0 && accessible->child(0)->role() == QAccessible::PopupMenu) { *pRetVal = new QWindowsUiaExpandCollapseProvider(id()); }
Which means that there must be a MenuItem object (the qml combobox doesn't have that), nor a child that's a PopupMenu.
So I checked, and the ExpandCollapse pattern works fine in a menu (from QWidgets), but not in qml.
I couldn't change the combobox's role (Accessible.MenuItem), it doesn't register for some reason (perhaps because of the c++ backend)
I tried "hacking" this in qml, to see if it could work, with this:
MenuItem { text: "test" Rectangle { Accessible.role: Accessible.PopupMenu visible:false // to make the state "collapsed" by default. } }
And ... it works. I have the pattern. But obviously this isn't a combobox (not by name, not for accessibility, and not for functionality).
So here's my question: is there a way to maybe have my custom combobox to have the combobox Accessible.role, while having this structure (Accessible.MenuItem + Accessible.PopupMenu) to make qwindowsuiamainprovider.cpp add the ExpandCollapse pattern?
Or is the only way to find a way to either change qwindowsuiamainprovider.cpp, or override it or something?
I couldn't find any way to change it without recompiling Qt myself with this change (I would also have to check the license if I'm allowed to do it...)
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Retain the selection in previous page when moved to next in ExtJS Combo box
I have the ExtJs form combo which shows the values in the dropdown as checkbox and the value to select. I have used the pagination to list all the values with no of pages. I need the selected value to be retained in the current page even when we move to next or previous page and comes back to the same page(without selecting any thing in prev, next pages).
Code:
Ext.create('Ext.form.ComboBox', { id: 'ageComboPickerReport', name: 'ageComboPickerReport', maxHeight: 150, margin: '0 5 0 0', width: 150, emptyText: "Select tags", listConfig: { getInnerTpl: function (displayField) { return '<div class="x-combo-list-item"><img src="" class="chkCombo-default-icon chkCombo" /> {' + displayField + '}</div>'; }, autoEl: { 'q-name': 'rpt-age-criteria-list' }, labelAlign: 'top', pageSize: 25, displayField: 'age', valueField: 'id', forceSelection: true, store: me.ageStore, //Disable Typing and Open Combo onFocus: function () { if (!this.isExpanded) { me.ageStore.load() this.expand() } this.getPicker().focus(); } }),
Could any one tell me how to retain the selected value in the page when move to other page and comes back
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Is there a VBA function for linking a list in excel to a combobox on a user form
I have a table in excel which shows the output for different products. If I select a different group in the excel drop-down list it updates the output table to present data for that group. I have created a vba userform which has a combobox listing the different products. The user form has to show results for each product which is selected in the combobox. The reference cells for results remain the same, what changes are the values when a different product selection is made.
I want the selection on the user form to also affect the excel worksheet hence updating the table in the excel sheet to show results of the selected product (selected on the user form).