Problem With Using Elements Of An String

i have this code for example:

strin开发者_开发知识库g i = "100";

if(i[1]==0)
{
    MessageBox.Show("ok");
}

and I thought I should get "ok" but it doesnt work. What is i[1] here?

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Your comparison is using the wrong type. When you use an indexer with a string, the result is a char. Your if statement is using an int. You need to change your code to:

if(i[1] == '0')
{
    MessageBox.Show("Ok");
}

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You're comparing a string to an integer.

Try if (i[1] == '0').

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i[1] is a char of '0' (Unicode U+0030), which is different than (int) 0.

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char i[0] is compared against an integer

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i[1] is the second character in the string, as arrays in c# are zero-based.