The Stack panels and Textbox are programmatically in a for-loop, by just changing the margins. Then these are inturn added to the Window context.
Now, When the user enters the values in the TextBox, I need to bind them to seperate fields. But, for some reason, the Textbox is not enabled and I think the reason is the fields are not binded properly.
StackPanel panel1 = new StackPanel();
for (int i = 0; i < 10; i++)
{
TextBox txtProgramValue1 = new TextBox();
txtProgramValue1.FontSize = 14;
txtProgramValue1.Height = 32;
txtProgramValue1.HorizontalAlignment = HorizontalAlignment.Right;
txtProgramValue1.VerticalAlignment = VerticalAlignment.Top;
txtProgramValue1.Width = 126;
txtProgramValue1.Margin = new Thickness(0, 51 + (i * 100), 16, 0);
txtProgramValue1.Name = "lblProgramValue" + i.ToString();
txtProgramValue1.IsEnabled = true;
panel1.Children.Add(txtProgramValue1);
}
I need to map the txtProgramValue1.Text of each TextBox to a list.
The use of Textbox as an array
Textbox[] _Textbox = new Textbox[5];
for(int i=0; i < 5;i++)
{
_Textbox[i] = new Textbox();
}
This solves this question.
Related
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 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())
We have WPF application, In which we use DataGrid on one form.
At runtime, when we Enter value in DataTemplate column, I need to Show SUM of that specific column in DATAGRID Footer.
So when each time I change value in any Cell of That AMOUNT column, The correct SUM of that column need to be display.
Which event I should try.
I have tried this code , But it need to press tab each time, it does not display Correct SUM.
private void dgInfo_RowEditEnding(object sender, Microsoft.Windows.Controls.DataGridRowEditEndingEventArgs e)
{
Microsoft.Windows.Controls.DataGridRow row = this.dgInfo.ItemContainerGenerator.ContainerFromIndex(e.Row.GetIndex()) as Microsoft.Windows.Controls.DataGridRow;
ContentPresenter CP = dgInfo.Columns[3].GetCellContent(row) as ContentPresenter;
TextBlock t = FindVisualChild<TextBlock>(CP);
if (t != null && t.Text.Length > 0)
{
decimal d = Convert.ToDecimal(t.Text);
sum = sum + d;
txtTotal.Text = sum.ToString();
}
}
void dgInfo_CellEditEnding(object sender, Microsoft.Windows.Controls.DataGridCellEditEndingEventArgs e)
{
decimal tot = 0;
GetFaltyExpenseGridResult newRecord;
for (int i = 0; i < (dgInfo.Items.Count - 1); i++)
{
newRecord = (GetFaltyExpenseGridResult)((ContentPresenter)dgInfo.Columns[0].GetCellContent(dgInfo.Items[i])).Content;
if (newRecord != null)
{
decimal d = Convert.ToDecimal(newRecord.Amount);
tot = tot + d;
txtTotal.Text = tot.ToString();
}
}
}
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?
Windows 7 (64 bit), .NET 4 (32 bit app)
I have a subclassed System.Windows.Forms.ListView comprising 2 columns displayed
in "Details" view. Only text fields are involved. The list comprises about 100
rows. On initial display all fields are drawn clearly but when scrolling or
"paging" with the scroll bar the text of some fields in the first column becomes
unreadable. It appears to be overwriten with random lines and blotches.
Is there anything that I can do to ensure that the text is clearly drawn in column 0?
The effect is diminished (clarity improved) when using remote desktop across a
LAN.
The effect disappears (all text is drawn clearly) when using remote desktop
across a WAN.
The ListView has always drawn perfectly on Windows XP.
For the purposes of a stripped down test, column header and DrawItem calls are ingored. The problem area is OnDrawSubItem which comprises the code
protected override void OnDrawSubItem(DrawListViewSubItemEventArgs e)
{
using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap))
{
Rectangle rect = new Rectangle(e.Bounds.Left
,e.Bounds.Top, e.Bounds.Width, e.Bounds.Height);
e.Graphics.DrawString(e.SubItem.Text, this.Font, Brushes.Black
,rect, sf);
}
base.OnDrawSubItem(e);
}
The following is the complete code that reproduces the problem:
using System;
using System.Windows.Forms;
using System.Drawing;
///
/// Build by saving to a file called LVTrial.cs and then executing "csc LVTrial.cs"
/// Scroll list up and down on a windows 7 box and the first column of text is corrupted.
///
class MyListView : ListView
{
Random randomiser = new Random();
private const int NUM_ROWS = 100;
private const int NUM_COLS = 2;
public MyListView()
{
this.Location = new System.Drawing.Point(23, 25);
this.OwnerDraw = true;
this.Size = new System.Drawing.Size(625, 387);
this.TabIndex = 0;
this.UseCompatibleStateImageBehavior = false;
this.View = System.Windows.Forms.View.Details;
for (int ii = 0; ii < NUM_COLS; ii++)
{
this.Columns.Add((
(System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader())));
}
for (int ii = 0; ii < NUM_ROWS; ii++)
{
this.Items.Add( new ListViewItem(
new string[NUM_COLS] { CreateRandomString(1, 6), CreateRandomString(1, 6) } ) );
}
}
protected override void OnDrawSubItem(DrawListViewSubItemEventArgs e)
{
using (StringFormat sf = new StringFormat(StringFormatFlags.NoWrap))
{
Rectangle rect = new Rectangle(e.Bounds.Left
,e.Bounds.Top, e.Bounds.Width, e.Bounds.Height);
e.Graphics.DrawString(e.SubItem.Text, this.Font, Brushes.Black
,rect, sf);
}
base.OnDrawSubItem(e);
}
private string CreateRandomString(int minLength, int maxLength)
{
string str = string.Empty;
int length = randomiser.Next(minLength, maxLength + 1);
for (int ii = 0; ii < length; ii++)
{
int asciiChar = randomiser.Next(32, 126); // ascii range
str += Convert.ToChar(asciiChar);
}
return str;
}
}
class LVTrial : Form
{
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new LVTrial());
}
private LVTrial()
{
MyListView myListView = new MyListView();
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(674, 440);
this.Controls.Add(myListView);
this.Text = "LVTrial";
}
}
I have recorded this as a Windows 7 bug at https://connect.microsoft.com/VisualStudio/feedback/details/657909/subclassed-listview-column-0-displays-corrupted-text-on-windows-7
My own workaround for the problem was to insert an additional column at position 0. I now draw a rectangle with a transparent brush in column 0 for each item. All of which stops the text in the column to the right being drawn corrupt. I imagine drawing an image would achieve the same thing but I have not tried it. You can't hide this dummy column as the problem simply transfers to the second column (i.e. the first visible coolumn).
Another tip is that it seems to be performance related. The bug was more likely to occur with 100 items in the list view than 10,000.