cannot implicitly convert type string to int.

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1.00/5 (1 vote)

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C#

public Product()
    {
        this.Carts = new HashSet<cart>();
    }

    public int Id { get; set; }
    public int TypeId { get; set; }
    public string Name { get; set; }
    public int Price { get; set; }
    public string Description { get; set; }
    public string Image { get; set; }

    public virtual ICollection<cart> Carts { get; set; }
    public virtual ProductType ProductType { get; set; }
} 


private Product CreateProduct()
    {
        Product product = new Product();
       
        product.Name = txtName.Text;
        product.Price = txtPrice.Text;  
        product.TypeId = Convert.ToInt32(ddlType.SelectedValue);
        product.Description = txtDescription.Text;
        product.Image = ddlImage.SelectedValue;
        
        return product;

    }

it gives an error in product.Price = txtPrice.Text; cannot implicitly convert type string to int. the datatype of price is int. please tell me if i have to convert it or change the datatype in db.

Posted 23-Dec-15 4:56am

Member 12225430

Updated 23-Dec-15 4:59am

CHill60

v2

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Comments

Sergey Alexandrovich Kryukov 23-Dec-15 12:07pm

Who told you that it should "convert" it?
—SA

2 solutions

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CHill60 · Accepted Answer · 2015-12-23T05:02:00

Solution 1

txtPrice.Text is a string
product.Price is an int

So yes, you have to convert the text to an integer before you assign it to the Price property

I suggest using int.TryParse() to do the conversion - see How to: Convert a String to a Number (C# Programming Guide)[^]

Posted 23-Dec-15 5:02am

CHill60

Comments

Thomas Daniels 23-Dec-15 11:02am

+5 - beat me to it!

Sergey Alexandrovich Kryukov 23-Dec-15 12:07pm

5ed.
—SA

Thomas Daniels · Accepted Answer · 2015-12-23T05:02:00

Solution 2

The datatype of Price is int, but the one of txtPrice.Text is a string. You first have to parse txtPrice.Text to an int before you can store it in product.Price:

C#

int price;
if (int.TryParse(txtPrice.Text, out price))
{
    product.Price = price;
}
else
{
    // input could not be parsed as integer; show appropriate error message
}

More information about int.TryParse: MSDN - Int32.TryParse Method (System)[^]

Posted 23-Dec-15 5:02am

Thomas Daniels

Comments

Sergey Alexandrovich Kryukov 23-Dec-15 12:08pm

5ed.
—SA

Thomas Daniels 23-Dec-15 12:13pm

Thank you!

CHill60 23-Dec-15 12:23pm

Snap :) 5ed

Thomas Daniels 23-Dec-15 12:24pm

Thank you!