Question

Please consider the following code.

bool somevariable;
bool.TryParse(Convert.ToString(Dataset.Tables[0].Rows[0]["SomeColumnName"]), out somevariable);
CheckBox.Checked = somevariable;

In “SomeColumnName” in dataset, I have value as 1. So I assume that this will parse this 1 as TRUE in “somevariable”.

But when I try to parse this value to bool, it always returns as false.

I don’t know why.

Answer 1

From the Boolean.Parse documentation:

true if value is equivalent to the value of the Boolean.TrueString field; false if value is equivalent to the value of the Boolean.FalseString field.

1 and 0 are not equivalent to the strings "true" or "false".

Assuming your SomeColumnName is indeed a boolean field, you can do:

return Convert.ToString(Dataset.Tables[0].Rows[0]["SomeColumnName"]) == "1";

Or directly convert to boolean (thanks @Bolu):

return Convert.ToBoolean(Dataset.Tables[0].Rows[0]["SomeColumnName"]);