Filling Datatable From Dictionay

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Hi all can you please help me?

I need to fill a datatable and set it as a datasource for a datagridview my code is below:

C#

private void GenerateGrid(Dictionary<string, string> staticFields) {
            DataTable dataTable = new DataTable();
            dataTable.Columns.Add(COLUMN_NAME);
            dataTable.Columns.Add(COLUMN_VALUE);
            
            int numberOfColumns = staticFields.Keys.Count;
            string[] dynamicColumns = new string[numberOfColumns];
            staticFields.Keys.CopyTo(dynamicColumns, 0);
            foreach (string columnName in dynamicColumns) {
                dataTable.Rows.Add(columnName, "");
            }
            for (int index = 0; index < dynamicColumns.Count(); index++) {
                dataTable.Rows[index][1] = staticFields[dynamicColumns[index]];
            }
            dgvDynamicColumns.DataSource = null;
            dgvDynamicColumns.DataSource = dataTable;
            dgvDynamicColumns.Refresh();


        }

the datagridview is empty although the dictionary is of count 3.

Plz help

Posted 14-Jun-12 5:32am

AR1988

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Comments

Stephen Hewison 14-Jun-12 11:42am

Have you tried stepping through your code to make sure that for each line the state of the data table is being modified as you'd expect it to be? So make sure the rows are being added where they're supposed to. This will help you find the code line which is invalid.

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Sander Rossel · Accepted Answer · 2012-06-14T06:18:00

Why not simply do the following?

C#

private void GenerateGrid(Dictionary<string,> staticFields)
{
    DataTable dataTable = new DataTable();
    dataTable.Columns.Add("Name");
    dataTable.Columns.Add("Value");
    
    // Step through the KeyValuePairs in the dictionary.
    // Simply add a row for each pair in the dictionary and
    // fill the first column with the keys value
    // and the second with the values value.
    foreach (var pair in staticFields)
    {
        dataTable.Rows.Add(pair.Key, pair.Value);
    }
    
    dgvDynamicColumns.DataSource = null;
    dgvDynamicColumns.DataSource = dataTable;
    dgvDynamicColumns.Refresh();
}

Seems a lot easier to me... By the way, your code sample worked just as well for me.