private void FieldTypeSelectionChanged(object sender, EventArgs e)
{
// Take the newly selected field type and update the properties
var currentcell = searchDataGrid.CurrentCellAddress;
var sendingCB = sender as DataGridViewComboBoxEditingControl;
string FieldType = sendingCB.EditingControlFormattedValue.ToString();
DataType dt = null;
if (FieldType == "Edm.String")
{
dt = DataType.String;
}
else if (FieldType == "Edm.Int32")
{
dt = DataType.Int32;
}
else if (FieldType == "Edm.Int64")
{
dt = DataType.Int64;
}
else if (FieldType == "Edm.Double")
{
dt = DataType.Double;
}
else if (FieldType == "Edm.DateTimeOffset")
{
dt = DataType.DateTimeOffset;
}
FieldProperties fp = GetDefaultFieldProperties(dt);
DataGridViewComboBoxCell cel = (DataGridViewComboBoxCell)searchDataGrid.Rows[currentcell.Y].Cells[3];
cel.Value = fp.Retreiveable;
cel = (DataGridViewComboBoxCell)searchDataGrid.Rows[currentcell.Y].Cells[4];
cel.Value = fp.Filterable;
cel = (DataGridViewComboBoxCell)searchDataGrid.Rows[currentcell.Y].Cells[5];
cel.Value = fp.Sortable;
cel = (DataGridViewComboBoxCell)searchDataGrid.Rows[currentcell.Y].Cells[6];
cel.Value = fp.Facetable;
cel = (DataGridViewComboBoxCell)searchDataGrid.Rows[currentcell.Y].Cells[7];
cel.Value = fp.Searchable;
}
private void btnChooseFile_Click(object sender, EventArgs e)
{
try
{
List <ColumnMetadata> ColumnMetaDataList = new List <ColumnMetadata>();
openFileDialog1.Filter = "CSV files (*.csv)|*.csv|Text files (*.txt)|*.txt";
DialogResult result = openFileDialog1.ShowDialog();
int rowCount = 0;
if (result == DialogResult.OK)
{
btnImportData.Enabled = false;
btnCreateIndex.Enabled = false;
SetStatus("Parsing CSV file...");
txtFileName.Text = openFileDialog1.FileName;
using (var sr = new StreamReader(txtFileName.Text))
{
var csv = new CsvReader(sr);
int colCount = 0;
bool rowLimit = false;
searchDataGrid.Rows.Clear();
searchDataGrid.Refresh();
csvDataGrid.Rows.Clear();
csvDataGrid.Refresh();
csvDataGrid.ColumnCount = 0;;
// Get the columnn names and how many columns of data are there
while ((csv.Read()) && (rowLimit == false))
{
if (rowCount == 0)
{
bool moreColumns = true;
while (moreColumns)
{
try
{
csvDataGrid.ColumnCount += 1;
string stringField = csv.GetField <string>(colCount);
csvDataGrid.Columns[csvDataGrid.ColumnCount - 1].Name = stringField;
ColumnMetaDataList.Add(new ColumnMetadata {
ColumnName = stringField
});
colCount++;
}
catch (Exception)
{
// This will be called when there is no more columns
moreColumns = false;
}
}
}
else
{
List <string> rowData = new List <string>();
for (int col = 0; col < ColumnMetaDataList.Count; col++)
{
string stringField = csv.GetField <string>(col);
rowData.Add(stringField);
DataType dt = EvaluateDataType(stringField);
// If it is a string I can stop here:
if (dt == DataType.String)
{
ColumnMetaDataList[col].ColumnDataType = dt;
if (stringField != null)
{
if (ColumnMetaDataList[col].ColumnMaxLen < stringField.Length)
{
ColumnMetaDataList[col].ColumnMaxLen = stringField.Length;
}
}
}
else if (dt == DataType.Int32)
{
if ((ColumnMetaDataList[col].ColumnDataType != DataType.String) &&
(ColumnMetaDataList[col].ColumnDataType != DataType.Int64) &&
(ColumnMetaDataList[col].ColumnDataType != DataType.Double) &&
(ColumnMetaDataList[col].ColumnDataType != DataType.DateTimeOffset))
{
ColumnMetaDataList[col].ColumnDataType = dt;
}
}
else if (dt == DataType.Int64)
{
if ((ColumnMetaDataList[col].ColumnDataType != DataType.String) &&
(ColumnMetaDataList[col].ColumnDataType != DataType.Double) &&
(ColumnMetaDataList[col].ColumnDataType != DataType.DateTimeOffset))
{
ColumnMetaDataList[col].ColumnDataType = dt;
}
}
else if (dt == DataType.Double)
{
if ((ColumnMetaDataList[col].ColumnDataType != DataType.String) &&
ColumnMetaDataList[col].ColumnDataType != DataType.DateTimeOffset)
{
ColumnMetaDataList[col].ColumnDataType = dt;
}
}
else if (ColumnMetaDataList[col].ColumnDataType != DataType.String)
{
ColumnMetaDataList[col].ColumnDataType = dt;
}
}
csvDataGrid.Rows.Add(rowData.ToArray());
}
rowCount++;
if (rowCount == 100)
{
rowLimit = true;
}
}
}
rowCount = 0;
foreach (ColumnMetadata cm in ColumnMetaDataList)
{
FieldProperties fp = GetDefaultFieldProperties(cm.ColumnDataType, cm.ColumnMaxLen);
string isKey = "False";
if (rowCount == 0)
{
isKey = "True";
}
string dt = "Edm.String";
if (cm.ColumnDataType == DataType.Int32)
{
dt = "Edm.Int32";
}
else if (cm.ColumnDataType == DataType.Int64)
{
dt = "Edm.Int64";
}
else if (cm.ColumnDataType == DataType.Double)
{
dt = "Edm.Double";
}
else if (cm.ColumnDataType == DataType.Boolean)
{
dt = "Edm.Boolean";
}
else if (cm.ColumnDataType == DataType.DateTimeOffset)
{
dt = "Edm.DateTimeOffset";
}
string[] row = new string[] { ConvertToCamelCase(cm.ColumnName), dt, isKey, fp.Retreiveable, fp.Filterable, fp.Sortable, fp.Facetable, fp.Searchable };
searchDataGrid.Rows.Add(row);
rowCount++;
}
}
}
catch (Exception ex)
{
SetStatus("Error: " + ex.Message);
return;
}
SetStatus("Ready.");
btnImportData.Enabled = true;
btnCreateIndex.Enabled = true;
}
public FieldProperties GetDefaultFieldProperties(DataType FieldType, Int32 MaxFieldLength = 0)
{
// Figure out the best default properties
// Max field len helps to tell if it should be filterable, facetable, etc
FieldProperties fp = new FieldProperties();
fp.FieldType = FieldType;
fp.Retreiveable = "True";
if (FieldType == DataType.String)
{
fp.Searchable = "True";
if (MaxFieldLength <= 30)
{
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else
{
fp.Filterable = "False";
fp.Sortable = "False";
fp.Facetable = "False";
}
}
else if (FieldType == DataType.Boolean)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else if (FieldType == DataType.Int32)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else if (FieldType == DataType.Int64)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else if (FieldType == DataType.Double)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else if (FieldType == DataType.DateTimeOffset)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "True";
fp.Facetable = "True";
}
else if (FieldType == DataType.GeographyPoint)
{
fp.Searchable = "False";
fp.Filterable = "True";
fp.Sortable = "False";
fp.Facetable = "True";
}
return(fp);
}
