C# Open File To Stream

• C# Open File Stream Read Only
• C# Open File To Stream Free

An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators −. Arithmetic Operators.

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Relational Operators. Logical Operators. Bitwise Operators. Assignment Operators.

C# Open File Stream Read Only

Misc Operators We will, in this chapter, look into the way each operator works. Arithmetic Operators The following table shows all the arithmetic operators supported by the C language. Assume variable A holds 10 and variable B holds 20 then − Operator Description Example + Adds two operands. A + B = 30 − Subtracts second operand from the first. A − B = -10. Multiplies both operands.

A. B = 200 / Divides numerator by de-numerator. B / A = 2% Modulus Operator and remainder of after an integer division. B% A = 0 Increment operator increases the integer value by one. A = 11 - Decrement operator decreases the integer value by one. A- = 9 Relational Operators The following table shows all the relational operators supported by C. Assume variable A holds 10 and variable B holds 20 then − Operator Description Example Checks if the values of two operands are equal or not.

If yes, then the condition becomes true. (A B) is not true.!= Checks if the values of two operands are equal or not. If the values are not equal, then the condition becomes true. (A!= B) is true.

Checks if the value of left operand is greater than the value of right operand. If yes, then the condition becomes true. (A B) is not true. = Checks if the value of left operand is greater than or equal to the value of right operand. If yes, then the condition becomes true.

(A = B) is not true. Binary Right Shift Operator. The left operands value is moved right by the number of bits specified by the right operand. A 2 = 15 i.e., 0000 1111 Assignment Operators The following table lists the assignment operators supported by the C language − Operator Description Example = Simple assignment operator. Assigns values from right side operands to left side operand C = A + B will assign the value of A + B to C += Add AND assignment operator. It adds the right operand to the left operand and assign the result to the left operand. C += A is equivalent to C = C + A -= Subtract AND assignment operator.

It subtracts the right operand from the left operand and assigns the result to the left operand. C -= A is equivalent to C = C - A.= Multiply AND assignment operator. It multiplies the right operand with the left operand and assigns the result to the left operand. C.= A is equivalent to C = C. A /= Divide AND assignment operator.

It divides the left operand with the right operand and assigns the result to the left operand. C /= A is equivalent to C = C / A%= Modulus AND assignment operator.

It takes modulus using two operands and assigns the result to the left operand. C%= A is equivalent to C = C% A = Right shift AND assignment operator. C = 2 is same as C = C 2 &= Bitwise AND assignment operator.

C &= 2 is same as C = C & 2 ^= Bitwise exclusive OR and assignment operator. C ^= 2 is same as C = C ^ 2 = Bitwise inclusive OR and assignment operator. C = 2 is same as C = C 2 Misc Operators ↦ sizeof & ternary Besides the operators discussed above, there are a few other important operators including sizeof and?: supported by the C Language. Operator Description Example sizeof Returns the size of a variable. Sizeof(a), where a is integer, will return 4. & Returns the address of a variable.

&a; returns the actual address of the variable. Pointer to a variable.a;?: Conditional Expression. If Condition is true? Then value X: otherwise value Y Operators Precedence in C Operator precedence determines the grouping of terms in an expression and decides how an expression is evaluated.

Certain operators have higher precedence than others; for example, the multiplication operator has a higher precedence than the addition operator. For example, x = 7 + 3. 2; here, x is assigned 13, not 20 because operator. has a higher precedence than +, so it first gets multiplied with 3.2 and then adds into 7. Here, operators with the highest precedence appear at the top of the table, those with the lowest appear at the bottom.

Within an expression, higher precedence operators will be evaluated first. Category Operator Associativity Postfix -. -Left to right Unary + -! -(type). & sizeof Right to left Multiplicative. /% Left to right Additive + - Left to right Shift Left to right Relational = Left to right Equality != Left to right Bitwise AND & Left to right Bitwise XOR ^ Left to right Bitwise OR Left to right Logical AND && Left to right Logical OR Left to right Conditional?: Right to left Assignment = += -=.= /=%.

C# Open File To Stream Free

How can I in vb.net op a excel file from a stream? I have a web app and I'm using the fileupload control everything is working fine. But I can't open excel with the stream that is rendered from FileUpload.PostedFile.InputStream.