ASP.NET C' convertTOINT error


I have a C# error on my ASP.NET web application.

Here is the error:

the code should convert the text to a int but for some reason it is failing./
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AndyAinscowFreelance programmer / ConsultantCommented:
The input probably isn't an integer.  eg one instead of 1
Chinmay PatelChief Technical NinjaCommented:
Check value of tbestotheraales text box. The error is coming from that.
Dirk StraussSenior Full Stack DeveloperCommented:
Your error is not on tbCustomerMargin.Text but on tbEstOtherSales.Text... and the error is stating that you are trying to convert from string to date time. I would check what the value is of tbEstOtherSales.Text and then handle that. You could always use int.TryParse.

int num1;
bool isInt = int.TryParse(tbEstOtherSales.Text, out num1);
if (res == true)
    // String is number. Use integer variable num1.

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ste5anSenior DeveloperCommented:
Just a comment:

hmm, where do you use this?

Cause it looks like you're trying to write data to a database. In this case you should use data transfer objects (POCO's) and the repository pattern.
Don't interact with your UI directly.
If it is your view model, then you don't use Sql{Type}.Null, cause this would couple it to the underlying storage.
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