How do I access the datarow inside of a datatable that is inside of a dictionary?

Question

0.00/5 (No votes)

See more:

My current Code:

IDictionary<string, DataTable> allTables = new Dictionary<string, DataTable>();
            foreach (string table in tableNames)
            {
                DataTable dtbl = new DataTable();
                string selectQuery = "SELECT * FROM " + table;
                allTables.Add(table, new DataTable());

                SQLiteCommand cmd = new SQLiteCommand(selectQuery, liteCon);
                SQLiteDataAdapter sqliteDAP = new SQLiteDataAdapter(cmd);
                sqliteDAP.Fill(allTables[table]);

                foreach (DataRow row in allTables[table].Rows)
                {
                    Console.WriteLine(row); // This is where I want to see the actual values
                }

            }

What I'm trying to do is access the ItemArray value in the "Rows" class/object for allTables[table]. The data that I am looking for is located in ItemArray as can be seen here[^]

What I have tried:

I've tried

Console.WriteLine(row);

But that just returns System.Data.DataRow

Posted 18-Sep-20 8:42am

stevenlam505

Updated 18-Sep-20 14:40pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Gerry Schmitz · Accepted Answer · 2020-09-18T09:03:00

Solution 1

C#

private void PrintTable(DataTable table)
{
    foreach(DataRow row in table.Rows)
    {
        foreach(DataColumn column in table.Columns)
        {
            Console.WriteLine(row[column]);
        }
    }
}

DataRow.ItemArray Property (System.Data) | Microsoft Docs[^]

Posted 18-Sep-20 9:03am

Gerry Schmitz

BillWoodruff · Accepted Answer · 2020-09-18T14:41:00

Look at thus code:

DataTable dtbl = new DataTable();
string selectQuery = "SELECT * FROM " + table;
allTables.Add(table, new DataTable());

you declare a DataTable variable dtbl, then never use it.

this is how you can use the ItemArray:

foreach (KeyValuePair<string, DataTable> kvp in AllTables)
{
    Console.WriteLine($"Table: {kvp.Key}");

    foreach (DataRow drw in kvp.Value.Rows)
    {
        Console.WriteLine($"\tRow: {kvp.Value.Rows.IndexOf(drw)}");

        for (var j = 0; j < drw.ItemArray.Length; j++)
        {
            var itm = drw.ItemArray[j];
            Console.WriteLine($"\t\tItm {j}: {itm}");
        }
    }
}