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What is a NullReferenceException, and how do I fix it?
...le = new Person[5];
people[0].Age = 20 // people[0] is null. The array was allocated but not
// initialized. There is no Person to set the Age for.
Jagged Arrays
long[][] array = new long[1][];
array[0][0] = 3; // is null because only the first dimension is yet initialized.
...
Window Features - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ata associated with the window, and it should release any system resources allocated for the window. If the application does not release the resources, the system will free any resources not freed by the application.
Destroying a window does not affect the window class from which the window is crea...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...y. Each cell holds a pointer to a font structure, and this pointer is only allocated and used if you set that cell's font to a non-default value.
The grid also has a virtual mode that stops the grid from actually creating cells, and allows you to specify either a callback funtion or message handler...