I am working on WPF application which includes WPF chart. I am facing a situation.
I want to draw the chart only for values by ignoring blank values.
In application the data is contained by a datagrid and same data will be reflected in the graph, but datagrid having blank values(DBNull.Value).
So, I want to generate graph with only values by ignoring the blank values.
Here is my code for generating graph.
for (int col = 1; col < dtGeneric.Columns.Count; col++)
{
valueList = new List<KeyValuePair<string, double>>();
gLineSeries= new System.Windows.Controls.DataVisualization.Charting.LineSeries();
for (int row = 0; row < dtGeneric.Rows.Count - 1; row++)
{
if (string.IsNullOrEmpty(XaxisValue))
{
XaxisValue = "0";
}
YAxisValue = dtGeneric.Rows[row][col].ToString();
if (string.IsNullOrEmpty(YAxisValue))
{
YAxisValue = "0";
}
valueList.Add(new KeyValuePair<string, double>(XaxisValue, Convert.ToDouble(YAxisValue)));
}
gLineSeries.DependentValuePath = "Value";
gLineSeries.Style = gLineSeries.PolylineStyle;
gLineSeries.IndependentValuePath = "Key";
gLineSeries.ItemsSource = valueList;
gLineSeries.Title = dtGeneric.Columns[col].Caption.Replace('_', '.').ToString();
gLineSeries.AnimationSequence = AnimationSequence.FirstToLast;
chartControl.Series.Add(gLineSeries);
}
}
As you can see in the code, I have used keyvaluepair to draw the graph. So I am unable to add null value in the Value of keyvaluepair. I have tried with double.NaN but that is not working.
I have iterated all the columns because all the column will have its separate graph.
I have tried one logic to create the graph which is:
for (int col = 1; col < dtGeneric.Columns.Count; col++)
{
valueList = new List<KeyValuePair<string, double>>();
gPositionLineSeries = new System.Windows.Controls.DataVisualization.Charting.LineSeries();
for (int row = 0; row < dtGeneric.Rows.Count - 1; row++)
{
if (!string.IsNullOrEmpty(dtGeneric.Rows[row][0].ToString()) && !string.IsNullOrEmpty(dtGeneric.Rows[row][col].ToString())) //Null values will be ignored for graph generation...
{
XaxisValue = dtGeneric.Rows[row][0].ToString();
YAxisValue = dtGeneric.Rows[row][col].ToString();
valueList.Add(new KeyValuePair<string, double>(XaxisValue, Convert.ToDouble(YAxisValue)));
}
else
{
continue;
}
}
}
Above code is working fine but the X-axis values in the graph is not in order.
Please tell me some solution.
use below code in if block
string.IsNullOrEmpty(row.Cells[clm.Index].Value.ToString())
Related
The below code searches for a value found in SheetOne, Cell B60, in SheetTwo, Column A.
If the value is found in column A of SheetTwo, a message box will display the value of the cell adjacent to where the cell was found. My problem is though the code works, I would also like a message box to appear if no match is found. Everything I have tried either traps me in the loop, or yields no result.
{
var MyWB = SpreadsheetApp.getActiveSpreadsheet();
var ValueSheet = MyWB.getSheetByName("SheetOne");
var SearchValue = ValueSheet.getRange("B60").getValue()
var SearchSheet = MyWB.getSheetByName("SheetTwo");
var SearchRange = SearchSheet.getRange("A1:A").getValues();
for (var i = 0, len = SearchRange.length; i < len; i++) {
if (SearchRange[i][0] == SearchValue) {
var MyFound = SearchSheet.getRange(i+1,2).getValue()
Browser.msgBox(MyFound)
}
}
}
To show a message no matter what, you'll want to update an existing variable if you find a match, and otherwise print a default message:
var message = "";
for(i = 0; i < array.length; ++i) {
if(array[i] == myValue) {
message += sheet.getRange(i, column).getValue();
break;
}
}
Browser.msgBox(message.length ? message : "Did not find the desired value");
I am (successfully) creating a column of boxes via a loop, the meat of which is:
for(var i=0; i < MAX_ROWS + 1; i++){
for(var o=0; o < MAX_COLS + 1; o++){
var currentTile:MemberBox = new MemberBox();
currentTile.x = i*150;
currentTile.y = o*25;
currentTile.name = "b"+o;
memberBox.addChild(currentTile);
}}
Now I need to add a textfield to each box, which will later be populated with data from an array. I tried adding each textfield to an array in the for loop and then calling from the array, but the textfields still all have the same name so only the last one called actually works...
Here is what I have - it almost does what I need, but it only adds text to the last box created.
var txtArray:Array = new Array();
for(var i=0; i < MAX_ROWS + 1; i++){
for(var o=0; o < MAX_COLS + 1; o++){
var currentTile:MemberBox = new MemberBox();
currentTile.x = i*150;
currentTile.y = o*25;
currentTile.name = "b"+o;
memberBox.addChild(currentTile);
currentTile.addChild(memberBoxText);
memberBoxText.width = 150;
memberBoxText.height = 25;
txtArray[o] = memberBoxText;
txtArray[o].text = "test"+o;
}}
Well you didn't declare anywhere memberBoxText so I asume you added it manually through flash builder. You are not making new instance of your textField.Try inserting this into for loop:
var memberTxt:TextField=new TextField(); currentTile.addChild(memberTxt);
:)
I need to write a C# WPF program in order to let the user individually modify the width and height of a grid using the mouse. After some reading, I've found out that WPF featues the GridSplitter control, which seems to be a possible solution for my problem. So far, this is my approach:
private const int NumCols = 5;
private const int NumRows = 7;
private void CreateDynamicWPFGrid()
{
// Create the Grid
var dynamicGrid = new Grid();
for (int i = 0; i < NumCols - 1; ++i )
{
// Define 2 * (NumCols - 1) columns. For every two columns, the first one will hold a label
// whereas the second one will hold a vertical splitter.
var gridColDefA = new ColumnDefinition();
// The gridColDefB is for the splitter.
var gridColDefB = new ColumnDefinition();
gridColDefB.Width = new GridLength(1, GridUnitType.Auto);
dynamicGrid.ColumnDefinitions.Add(gridColDefA);
dynamicGrid.ColumnDefinitions.Add(gridColDefB);
}
{
// The last column only needs a cell for holding a label. No splitter whatsoever.
var gridColDef = new ColumnDefinition();
dynamicGrid.ColumnDefinitions.Add(gridColDef);
}
for (int j = 0; j < NumRows - 1; ++j)
{
var gridRowDefA = new RowDefinition();
var gridRowDefB = new RowDefinition();
// The gridRowDefB is for the splitter.
gridRowDefB.Height = new GridLength(1, GridUnitType.Auto);
dynamicGrid.RowDefinitions.Add(gridRowDefA);
dynamicGrid.RowDefinitions.Add(gridRowDefB);
}
{
// The last row only needs a cell for holding a label. No splitter whatsoever.
var gridRowDef = new RowDefinition();
dynamicGrid.RowDefinitions.Add(gridRowDef);
}
for (int i = 0; i < NumCols - 1; ++i )
{
for(int j = 0; j < NumRows - 1; ++j )
{
// Insert the label.
var label = new Label();
label.Content = "C" + i + "-R" + j;
label.Background = new SolidColorBrush(Colors.Azure);
Grid.SetColumn(label, 2 * i);
Grid.SetRow(label, 2 * j);
dynamicGrid.Children.Add(label);
// Insert the horizontal splitter.
var horizontalGridSplitter = new GridSplitter();
horizontalGridSplitter.Height = 1;
horizontalGridSplitter.Background = new SolidColorBrush(Colors.DarkSlateBlue);
horizontalGridSplitter.HorizontalAlignment = HorizontalAlignment.Stretch;
horizontalGridSplitter.VerticalAlignment = VerticalAlignment.Center;
Grid.SetColumn(horizontalGridSplitter, 2 * i );
Grid.SetRow(horizontalGridSplitter, 2 * j + 1);
Grid.SetRowSpan(horizontalGridSplitter, 1);
Grid.SetColumnSpan(horizontalGridSplitter, 1);
dynamicGrid.Children.Add(horizontalGridSplitter);
// Insert the vertical splitter.
var verticalGridSplitter = new GridSplitter();
verticalGridSplitter.Width = 1;
verticalGridSplitter.Background = new SolidColorBrush(Colors.DarkSlateBlue);
verticalGridSplitter.HorizontalAlignment = HorizontalAlignment.Center;
verticalGridSplitter.VerticalAlignment = VerticalAlignment.Stretch;
Grid.SetColumn(verticalGridSplitter, 2 * i + 1);
Grid.SetRow(verticalGridSplitter, 2 * j + 1);
Grid.SetRowSpan(verticalGridSplitter, 1);
Grid.SetColumnSpan(verticalGridSplitter, 1);
dynamicGrid.Children.Add(verticalGridSplitter);
}
}
// Display grid into a Window
Content = dynamicGrid;
}
The output I'm getting is as follows:
Notice that I'm only able to resize the rows (don't know why the vertical splitters don't show up) and, for some reason, when I grab a horizontal splitter it resizes the whole row and not just the individual cell. Any ideas? Please, See the following screenshot to see the resizing in action:
This is what I'd expect if I resize cell (0,0) (the image has being manually edited by me):
Thanks in advance!
If you remove the line setting the row for your verticalGridSplitter and set them to span NumRows, you will see your vertical splitters. But ultimately, I think you are trying to do something that the grid with splitters can't do. You can't resize the width and height of individual cells, only whole rows and columns.
After all, if you make C0-R0 taller, what do you expect the rest of that row to do?
I am having problems with my code below, the code below shows a jComboBox being populated, when i select an item from this list it is added to the jTable below it.
There is alos code to check for duplicate entries ont he table. If a duplicate entry is found it should increase the qty column by one and not create a seperate entry.
This is where the problem comes in, when I press the back button on this screen and go to a different screen and then come back via same route as the first time, I get an incrementally different qty added to the table row/cell.
I have also included the code that populates the Round Details depending on Round Drop selected from table, for reference, but Im fairly certain the problem lies in the below code. The navigation is as follows...
To get to the below screen... Round Drop panel table of round drops) >> click on table row and taken to associated round details panel >> pressing the Till button takes user to screen with code below...
Test results:
First pass through below code using navigation above gives results as expected
Second pass gives an initial value of 2 (instead of one), and duplicate row increases qty by 2 instead of one
Third pass gives an initial value of 3 (instead of one), and duplicate row increases qty by 3 instead of one
Fourth pass gives an initial value of 4 (instead of one), and duplicate row increases qty by 4 instead of one
...and so on.
Any help, guidance on solution or a better design would be hugely appreciated.
Thanks
/*************Code sample ********************************/
public void tillOperations(String sourceCall) {
final DefaultTableModel model = (DefaultTableModel)main.tillPanel.tblTillSale.getModel();
if (main.tillPanel.cmbTillProdSelect.getItemCount() < 1) {
for (int d = 0; d < roundStockObj.length ; d++) {
main.tillPanel.cmbTillProdSelect.addItem(roundStockObj[d].getDescription());
}}
main.tillPanel.tblTillSale.removeRowSelectionInterval(0, model.getRowCount() - 1);
main.tillPanel.cmbTillProdSelect.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent f)
{
int qty = 1;
for (int index = 0; index < 4; index++) {
addSelectedItem[index] = "";
}
int row;
selectedItem = null;
main.tillPanel.tblTillSale.removeRowSelectionInterval(0, model.getRowCount() - 1);
selectedItem = main.tillPanel.cmbTillProdSelect.getSelectedItem();
for (int d = 0; d < roundStockObj.length; d++) {
if (selectedItem.equals(roundStockObj[d].getDescription())) {
addSelectedItem[0] = roundStockObj[d].getDescription();
addSelectedItem[1] = Integer.toString(qty);
addSelectedItem[2] = Double.toString(roundStockObj[d].getPrice()).trim();
addSelectedItem[3] = Double.toString(roundStockObj[d].getPrice()).trim();
//break;
}
}
if(model.getRowCount() == 0) { //check if model is empty
model.addRow(new String[]{addSelectedItem[0], addSelectedItem[1], addSelectedItem[2], addSelectedItem[3]});
}
else { //check if there is a duplicate row
int duplicateRow = -1;
for (row = 0 ; row < model.getRowCount(); row++) {
if(addSelectedItem[0].equals(main.tillPanel.tblTillSale.getModel().getValueAt(row,0))) {
duplicateRow = row;
break;
}
}
if(duplicateRow == -1) { //if there is no duplicate row, append
model.addRow(new String[]{addSelectedItem[0], addSelectedItem[1], addSelectedItem[2], addSelectedItem[3]});
}
else { //if there is a duplicate row, update
main.tillPanel.jLabel1.setText(addSelectedItem[1]);
DecimalFormat fmtObj = new DecimalFormat("####0.00");
int currentValue = Integer.parseInt(main.tillPanel.tblTillSale.getValueAt(row, 1).toString().trim());
int newValue = currentValue + 1;
Integer newValueInt = new Integer(newValue);
model.setValueAt(newValueInt, row, 1);
double unitPrice = Double.parseDouble(main.tillPanel.tblTillSale.getValueAt(row, 2).toString().trim());
double newPrice = newValue * unitPrice;
Double newPriceDbl = new Double(newPrice);
main.tillPanel.tblTillSale.setValueAt(fmtObj.format(newPriceDbl), row, 3);
}
}
main.tillPanel.tblTillSale.removeRowSelectionInterval(0, model.getRowCount() - 1);
for (int index = 0; index < 4; index++) {
addSelectedItem[index] = "";
}
}
});
//This code loads the specific Round Details, based on the selection form the round drops table
public void displayRoundDropDetails() {
DefaultTableModel model = (DefaultTableModel)main.selectRoundDropPanel.tblSelectRoundDrop.getModel();
if (!loaded) {
for (int d = 0; d < roundDropsData.length; d++) {
if (roundDropsData[d][0].equals(defaultRoundID)) {
model.addRow(new Object[]{roundDropsData[d][3], roundDropsData[d][2],
roundDropsData[d][4], roundDropsData[d][5]});
}
}
loaded = true;
}
main.selectRoundDropPanel.tblSelectRoundDrop.addMouseListener(new MouseAdapter()
{
public void mouseClicked(MouseEvent evt)
{
int row = 0;
row = main.selectRoundDropPanel.tblSelectRoundDrop.getSelectedRow();
for (int index = 0; index < roundDropsData.length; index++) {
if (roundDropsData[index][3].equals(
main.selectRoundDropPanel.tblSelectRoundDrop.getModel().getValueAt(row, 0))) {
main.roundDetailsPanel.txtRoundDetailsAddress.setText(roundDropsData[index][6] + "\n"
+ roundDropsData[index][7] + ", " + roundDropsData[index][8] + "\n" +
roundDropsData[index][9]);
main.roundDetailsPanel.lblRoundDetailsName.setText(roundDropsData[index][2]);
main.roundDetailsPanel.txtRoundDetailsInstuct.setText(roundDropsData[index][10]);
main.roundDetailsPanel.txtDropDetailsIn.setText(roundDropsData[index][4]);
main.roundDetailsPanel.txtDropDetailsOut.setText(roundDropsData[index][5]);
main.roundDetailsPanel.txtRoundDetailsInstruct.setText(roundDropsData[index][12]);
break;
}
}
Globals.CURRENT_COMPONENT = "selectRoundDropPanel";
showRoundDetailsPanel();
}
});
}
Try changing the listener for JComboBox. try using stateChangeListener.
Seems like this would be easy to do, but it appears its not so simple. I have a 2d array of floats or ints and I'd like to display it in a grid like control so it acts similar to Excel in regards to being able to move around with the arrow keys, tab keys, etc. The size of the array will vary. This comes close, but works well only for displaying:
How to populate a WPF grid based on a 2-dimensional array
I found the easiest way would be to use datatables and create one dynamically :
DataTable dt = new DataTable();
int nbColumns = 10;
int nbRows = 5;
for (int i = 0; i < nbColumns; i++)
{
dt.Columns.Add(i.ToString(), typeof(double));
}
for (int row = 0; row < nbRows; row++)
{
DataRow dr = dt.NewRow();
for (int col = 0; col < nbColumns; col++)
{
dr[col] = col;
}
dt.Rows.Add(dr);
}
myDataGrid.ItemsSource = dt.DefaultView;
Of course this is just a random table, you can load your 2d or Xd array in your DataTable. And also, you don't have to implement IEnumerable and stuff...