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How to remove all of the data in a table using Django
... /admin/dc_dash/model_4/
relation "dc_dash_model_4" does not exist
LINE 1: SELECT COUNT(*) AS "__count" FROM "dc_dash_model_4"
Do consider that - if we do not go to the ADMIN Console and try and see objects of the model - which have been already deleted - the Django app works just as intended.
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Show control hierarchy in the WinForms designer
... Some of those controls have a deep hierarchy and that makes it to hard to select them in the designer.
3 Answers
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How do I read an attribute on a class at runtime?
...>(
this Type type,
Func<TAttribute, TValue> valueSelector)
where TAttribute : Attribute
{
var att = type.GetCustomAttributes(
typeof(TAttribute), true
).FirstOrDefault() as TAttribute;
if (att != null)
{
r...
Prevent contenteditable adding on ENTER - Chrome
...ent('br');
docFragment.appendChild(newEle);
//make the br replace selection
var range = window.getSelection().getRangeAt(0);
range.deleteContents();
range.insertNode(docFragment);
//create a new range
range = document.createRange();
range.setStartAfter(newEle);
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Convert a bitmap into a byte array
...y answer with some discussion about why not to use ImageConverter, as your selected answer suggests, as well as the addition of disposal.
– Christopher Currens
Sep 8 '11 at 16:39
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UIButton won't go to Aspect Fit in iPhone
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This method worked for me very well.:
In Xib select the button and set user defined runtime attributes:
Key path: self.imageView.contentMode
Type: Number
Value: 1
We use number because you cant use enum there. But the UIViewContentModeScaleAspectFit is equal to...
Which version of the git file will be finally used: LOCAL, BASE or REMOTE?
..., the three-way tab is always the third tab, while the first tab is always selected by default. Is there a way to make the three-way tab selected by default?
– Sam Kauffman
Dec 1 '15 at 20:33
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How can I append a string to an existing field in MySQL?
... Alternatively you can use CONCAT_WS which skips NULL values. For example SELECT CONCAT_WS(', ','First name',NULL,'Last Name'); gives 'First name, Last Name'
– BarneySchmale
Aug 8 '16 at 11:00
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How to make a div with no content have a width?
...on, any padding greater than 0 will work. That way you don't have a weird, selectable &nbsp; in the div.
– Brian Duncan
Apr 12 '13 at 18:20
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Getting the path of the home directory in C#?
...OSs do you need to support? You may need to do some simple OS detection to select the method for finding the home directory if you're running on a non-Windows OS.
This website seems to give a way to do what you need in Windows.
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