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I have a problem with displaying images in WPF. Here's my code: <Button HorizontalAlignment="Left" Grid.Column="1" Grid.Row="5" Margin="0,5"> <Button.Content> <StackPanel Orientation="Horizontal" Margin="10,0"> <Image Source="/images/user_add.png" Stretch="None" HorizontalAlignment="Center" VerticalAlignment="Center" Width="24" Height="24" /> <TextBlock Text="添加" /> </StackPanel> </Button.Content> </Button> I have an image with original size 32*32, but when I ran the above code, the image will stretch to fill all the space, beyond its original size. I also set the "Stretch" property to "None",

I have a JTable in which I set the column size as follows: table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); table.getColumnModel().getColumn(0).setPreferredWidth(27); table.getColumnModel().getColumn(1).setPreferredWidth(120); table.getColumnModel().getColumn(2).setPreferredWidth(100); table.getColumnModel().getColumn(3).setPreferredWidth(90); table.getColumnModel().getColumn(4).setPreferredWidth(90); table.getColumnModel().getColumn(6).setPreferredWidth(120); table.getColumnModel().getColumn(7).setPreferredWidth(100); table.getColumnModel().getColumn(8).setPreferredWidth(95); table

The Android Documentation says that there is two sizes for a view, the measured dimensions and the drawing dimensions . The measured dimension is the one computed in the measure pass (the onMeasure method), while the drawing dimensions are the actual size on screen. Particularly, the documentation says that: These values may, but do not have to, be different from the measured width and height. So, my question is: what could make the drawing dimension be different of the measured dimension? If the onMeasure(int,int) method respects the layout requirements (given as the parameters

I know that if I use randn , import pandas as pd import numpy as np df = pd.DataFrame(np.random.randn(100, 4), columns=list('ABCD')) gives me what I am looking for, but with elements from a normal distribution. But what if I just wanted random integers? randint works by providing a range, but not an array like randn does. So how do I do this with random integers between some range? Anand S Kumar numpy.random.randint accepts a third argument ( size ) , in which you can specify the size of the output array. You can use this to create your DataFrame - df = pd.DataFrame(np.random.randint(0,100

I would like to know how much space does my MySQL database use, in order to select a web host. I found the command SHOW TABLE STATUS LIKE 'table_name' so when I do the query, I get something like this: Name | Rows | Avg. Row Length | Data_Length | Index Length ---------- ---- --------------- ----------- ------------ table_name 400 55 362000 66560 numbers are rounded. So do I have 362000 or 400*362000 = 144800000 bytes of data for this table? And what does Index Length mean? Thanks ! ron_dobley From S. Prakash, found at the MySQL forum : SELECT table_schema "database name", sum( data_length +

a simple question that bugs me. Say I have an array defined in main like so int arr[5] . Now, if I'm still inside main and I set int i = sizeof(arr)/sizeof(arr[0]) then I is set to be 5, but if I pass the array as a function parameter and do the exact same calculation in this function, I get a different number. Why is that? At first I thought its because in a function arr is a pointer, but as far as I know arr is a pointer inside main too! Also, if I do something very similar only I initialize the array dynamically, I get weird results: int *arr = (int*) malloc(sizeof(int) * 5); int length =