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How to export DataTable to Excel
...tring[] columnNames = dataTable.Columns
.Cast<DataColumn>()
.Select(column => column.ColumnName)
.ToArray();
var header = string.Join(",", columnNames.Select(name => $"\"{name}\""));
lines.Add(header);
var valueLines = dataTable.AsEnumerable()
.Select(row => string.J...
How do I make text bold in HTML?
...se a "label" element, programmatically associate it with the the relevant "select", "input" or "textarea" element by giving it a "for" attribute matching an "id" attribute on the target, and suggest a bold style for it within your CSS ("label {font-weight: bold;"}).
Want to embolden a heading for a ...
Why would $_FILES be empty when uploading files to PHP?
...rm action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
...
How do I create multiple submit buttons for the same form in Rails?
...an change the behavior of hte controller,e ven if it user input, which the selection of the button is?
– Timothy T.
Jun 12 '10 at 6:07
1
...
How to get elements with multiple classes
...document.getElementsByClassName("class1 class2");
var list = document.querySelectorAll(".class1.class2");
OR (at least one class)
var list = document.querySelectorAll(".class1,.class2");
XOR (one class but not the other)
var list = document.querySelectorAll(".class1:not(.class2),.class2:not(.c...
Check if OneToOneField is None in Django
...fortunately, this doesn't work all the time. In case you want to work with select_related() now or in the future -- or maybe even to be sure you also handle other sorts of magic which may happen elsewhere -- you have to extend the test as follows: if hasattr(object, 'onetoonerevrelattr') and object....
Is it possible to open a Windows Explorer window from PowerShell?
...tion looking for a way to open an Explorer window from PowerShell and also select a file. I'm adding this answer in case others come across it for the same reason.
To launch Explorer and select a file, use Invoke-Expression:
Invoke-Expression "explorer '/select,$filePath'"
There are probably oth...
Using only CSS, show div on hover over
...>Stuff shown on hover</div>
This uses the adjacent sibling selector, and is the basis of the suckerfish dropdown menu.
HTML5 allows anchor elements to wrap almost anything, so in that case the div element can be made a child of the anchor. Otherwise the principle is the same - use ...
How do i create an InstallShield LE project to install a windows service?
...after installation. To install service and start it, in solution explorer, select 3. Configure Target System > Services.
– Rajeev
Feb 17 '15 at 13:28
...
Android dismiss keyboard
...ll on the screen, for example click away from EditText to text that can be selected but not edited in the same window.
– Georgie
Jan 22 '19 at 2:17
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