I am developing an application for Windows 8, I would like to select multiple items in a GridView (by c# code), I tried this:
1st
for (int i = 0; i <= 2; i++)
{
this.ItemGridView.SelectedIndex = i;
}
//in this way is only selects the third element
2nd
this.ItemGridView.SelectedItem = listPeople;
//in this way does not select anything
3rd
foreach (Persona persona in listaPersone)
{
this.ItemGridView.SelectedItem = person;
}
//in this way is selected only the last
You could try this
Assume the 'listPeople' is collection what you want to select.
foreach(var p in listPeople)
{
this.ItemGridView.SelectedItem.Add(p);
}
I didn't try for Win8 but something like this should work:
this.ItemGridView.MultiSelect = true;
foreach (GridViewRow row in this.ItemGridView.Rows)
{
row.Selected = selection.Contains(row.Cells[0].Value);
}
Related
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())
I am working in extjs4 MVC. Where i am getting stuck at a point*.Which is how to define object array in extjs4 and set values to it as well as retrieve values from that object.*I am tried but not yet solved.
Suppose I have Qusetion paper.Which displays some question with there options.I have got qustion with proper selected option.But I am not succeed to store it in proper models instance.I know how to store single record to particular model instance.But I dont know how to store repetative values to a particular model object.How I solve this probelm.
1) here is my some contrller file code
temp:function()
{
var obj = Ext.create('Demo.model.Poll');
for(var i=0;i<4;i++)
{
var inputs = document.getElementsByName(i);
var radio = "";
for (var j = 0; j < inputs.length; j++) {
if (inputs[j].checked) {
name = inputs[j].name;
value = inputs[j].value;
//console.log("questionId="+name +" value="+ value);
check.set('poll',name);
check.set('option',value);
}// End of if statment
}// End of inner for loop
}//End of outer for loop
//Here I am going to display values inside object
console.log("----------------------------------");
for(var i=0;i<4;i++)
{
console.log(i);
console.log(check.get('poll'));
console.log(check.get('option'));
}
//Is it possible to save object array to server side in single save method
// obj.save();
}// End of temp function
2) And after running this code i got last set value to model.In firebug i got this result.
for exampl.
3
England
3
England
3
England
3
England
please give me some suggestion
Try,
var myObj = [];
for(.....)
{
myObj.push(
{
'poll' : name,
'option' : value
});
}
to access,
var i;
for(i=0; i<myObj.length; i++)
{
console.log(myObj[i].poll);
console.log(myObj[i].option);
}
I have found the solution to my question and here is the answer.
//code for getting question name and value from view and send to server side in a asingle request
check:function()
{
//creating objects in javascript
var storeObject=this.getStore('qb.QbquestionoptionStore');
for(var i=0;i<=4;i++)
{
var inputs = document.getElementsByName(i);
var radio = "";
for (var j = 0; j < inputs.length; j++) {
if (inputs[j].checked) {
name = inputs[j].name;
value = inputs[j].value;
console.log("questionId="+name +" value="+ value);
var check = Ext.create('Balaee.model.qb.QbquestionoptionModel');
check.set('questionId',name);
check.set('option',value);
storeObject.add(check);
//console.log("User Infooooooooo: option="+check.get('option')+"questionId="+check.get('questionId'));
}// End of if statment
}// End of inner for loop
}//End of outer for loop
// code to display data in store object
for(var i=0;i<4;i++)
{
var record=storeObject.getAt(i);
console.log("record no="+i);
console.log("Qusetion Id="+record.get('questionId'));
console.log("Option="+record.get('option'));
console.log();
}
storeObject.sync();
}// End of check function
I have two arrays, namely combo and truecombo. The user fills the combo with MovieClips by clicking on various buttons on the stage, truecombo is the correct combination.
At any given point (enterFrame) Flash is checking whether the two are the same, if yes, then do some stuff. For the time being this is my code (altered several times, like with Typecasting the indices, adding .parent at the end of combo[o] etc. 2 things will happen, either one or the other.
Either the statement will not be satisfied, at which point the adding and chopping of the combo array will continue, or the condition will be instantly met when combo.length = 6. Check my code.
UPDATE: I have a dropbox file with my current code. Click this for FLA link and here is the SWF link stripped down as always for ease and security.
/*stage.*/addEventListener(Event.ENTER_FRAME, checkthis);
function checkthis(e:Event)
{
for(var o:int=0;o<= combo.length; o++)
{
if((combo[o] == truecombo[o]) && (combo.length==truecombo.length))
{
equal=true;
}
}
if (equal==true)
{
stage.removeEventListener(Event.ENTER_FRAME, checkthis);
endSeq();
}
}
function endSeq():void
{
bravo.play();
for (var i:int = 0; i < combo.length; i++)
{
var element:DisplayObject = combo[i];
element.parent.removeChild(element);
}
firebb.gotoAndPlay(2);
windbb.gotoAndPlay(2);
spiritbb.gotoAndPlay(2);
earthbb.gotoAndPlay(2);
}
This is how I push my new elements to the combo array.
function add(element:DisplayObject)
{
twist.gotoAndPlay(2);
element.width = WIDTH;
element.height = HEIGHT;
if (this.combo.length >= MAX_ELEMENTS)
{
removeChild(this.combo.shift());
}
this.combo.push(element as DisplayObject);
this.addChild(element);
this.reorder();
}
function reorder()
{
for (var i:int = 0; i < combo.length; i++)
{
var element:DisplayObject = combo[i];
element.x = OFFSET_X + (i * SEP_X);
element.y = OFFSET_Y;
}
}
And this is how I have my truecombo and its contents created.
var fireb:firebtn = new firebtn();
var spiritb:spiritbtn = new spiritbtn();
var earthb:earthbtn = new earthbtn();
var windb:windbtn = new windbtn();
var combo:Array=new Array();
const truecombo:Array = [fireb,windb,spiritb,windb,earthb,fireb];
Sorry for the lack of comments, I'd guess it's pretty self-explanatory. Thanks in advance.
I believe combo[o] & truecombo[o] are two instances of the same class & you want them to be matched. If that is the case you may consider :
getQualifiedClassName(combo[o]) == getQualifiedClassName(truecombo[o])
To match the way you did, you must ensure the objects lying inside truecombo be referring to the same ones on stage & not new instances.
EDIT:
It seems you do not break the loop when the match is a success. Use this instead :
function checkthis(e:Event)
{
for(var o:int=0;o<= combo.length; o++)
if((combo[o] == truecombo[o]) && (combo.length==truecombo.length)) {
equal=true;
break;
}
if (equal) {
stage.removeEventListener(Event.ENTER_FRAME, checkthis);
endSeq();
}
}
Here's a really simple loop:
var equal:Boolean=true
if(combo.length == truecombo.length) {
for(var i:int=0; i<combo.length; i++) {
if(combo[i] != truecombo[i]) {
equal=false;
break;
}
}
} else {
equal=false;
}
if(equal) {
//do whatever
}
This assumes both are equal, until we find out otherwise. So if the lengths are different, they are not equal. If the ith element is different, they are not equal.
In the end, you check if your flag equal is true and do whatever you want to do.
Is there a way to get an iteratable collection of all the cells in a DataGrid regardless of whether they are selected or not
If you mean DataGridCells you could use Vincent Sibals helper functions to iterate over all rows DataGrid.Items and columns DataGrid.Columns.
public DataGridCell GetCell(int row, int column)
{
DataGridRow rowContainer = GetRow(row);
if (rowContainer != null)
{
DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);
// try to get the cell but it may possibly be virtualized
DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
if (cell == null)
{
// now try to bring into view and retreive the cell
DataGrid_Standard.ScrollIntoView(rowContainer, DataGrid_Standard.Columns[column]);
cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
}
return cell;
}
return null;
}
public DataGridRow GetRow(int index)
{
DataGridRow row = (DataGridRow)DataGrid_Standard.ItemContainerGenerator.ContainerFromIndex(index);
if (row == null)
{
// may be virtualized, bring into view and try again
DataGrid_Standard.ScrollIntoView(DataGrid_Standard.Items[index]);
row = (DataGridRow)DataGrid_Standard.ItemContainerGenerator.ContainerFromIndex(index);
}
return row;
}
Edit
If grid is your DataGrid you get a list of all DataGridCells like this:
List<DataGridCell> allCellList = new List<DataGridCell>();
for (int i = 0; i < grid.Items.Count; i++)
{
for (int j = 0; j < grid.Columns.Count; j++)
{
allCellList.Add(grid.GetCell(i, j));
}
}
For the sake of convenience (not necessarily performance), you can populate your data (including all cells from all column and rows) from your DataGrid to a single DataTable, which provides functions to help manipulate your data such as iteration, filtering, sorting etc.
// Populate a DataGrid to a DataTable
DataTable dt;
DataView dv = (DataView) myDataGrid.DataSource;
dt = dv.Table.DataSet.Tables[0];
You can subsequently convert any of a specific column to a collection or list using generics in as short as one line of code. See how-do-you-convert-a-datatable-into-a-generic-list:
List<DataRow> myList = dt.Rows.Cast<DataRow>().ToList();
It saves you from writing loops.
To fix the error thrown by the line...
DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>
(rowContainer);
Add this routine:
private T GetVisualChild<T>(DataGridRow rowContainer)
{
throw new NotImplementedException();
}
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.