Question

I am trying to convert a field from a string to an int, then pass it to a query using tableadapters.

I have the following function:

protected String countResponses(String value)
{
    String input = value.ToString();
    int fordb = Int32.Parse(input);

    FrontendTableAdapters.ForumTableAdapter ta = new FrontendTableAdapters.ForumTableAdapter();
    DataTable table = ta.CountPosts(value);

    if (table.Rows.Count > 0)
    {
        return table.Rows[0].ItemArray[1].ToString();
    }
    else
    {
    return "Unknown";
    }
}

It is working greate up to putting it in CountPosts() where I get the following error:

Error 4
Cannot implicitly convert type ‘object’ to ‘System.Data.DataTable’. An explicit conversion exists (are you missing a cast?) C:\Users\Dave\Desktop\WebApps\Figmentville\Figmentville\yoursay\Default.aspx.cs 49 31

I think this is because it is looking for an int. But haven’t I already converted it to an int?

Thanks

Dave.

Answer 1

Since we don’t know what ForumTableAdapter is, it isn’t clear what CountPosts returns, but if this is actually returning a DataTable (but typed as object) it sounds like you just want:

 DataTable table = (DataTable)ta.CountPosts(value);

but then, I also expect Count... to return an int…

---

Also; minor point: the line String input = value.ToString(); is both unnecessary and potentially a cause of a null bug (but not in this case) – you should be able to just use:

int fordb = int.Parse(value);

(and remove the input variable completely)