Develop Reference

How to save multiple dynamic textboxes value into SQL Server database

I want to add some panel dynamically into a single panel on a button click. And each dynamic panel consist of multiple text box in horizontally. And then I want to save those text box value into the database.
I have completed to add dynamic panel and horizontal multiple text box into that panel. But couldn't know how to save them into database.
Here is the code I have written:
int v = 0;
TextBox txt1;
TextBox txt2;
TextBox txt3;
TextBox txt4;
TextBox txt5;
ComboBox cmb4;
public void tett()
{
v = 0;
Panel whitePanel = new Panel();
whitePanel.Name = "wt";
// Quantity
txt1 = new TextBox();
txt1.Location = new Point(192, 38);
txt1.Size = new Size(120, 24);
txt1.Name = "text" + v ;
txt1.Text = txt1.Name;
v = v + 1;
// Total Price
txt2 = new TextBox();
txt2.Location = new Point(566, 38);
txt2.Size = new Size(120, 24);
txt2.Name = "text" + v;
txt2.Text = txt2.Name;
txt2.TextChanged += Txt2_TextChanged;
v = v + 1;
// Unit Price
txt3 = new TextBox();
txt3.Location = new Point(753, 38);
txt3.Size = new Size(120, 24);
txt3.Name = "text" + v;
txt3.Text = txt3.Name;
v = v + 1;
// Sell Price
txt4 = new TextBox();
txt4.Location = new Point(903, 38);
txt4.Size = new Size(120, 24);
txt4.Name = "text" + v;
txt4.Text = txt4.Name;
v = v + 1;
// Product
txt5 = new TextBox();
txt5.Location = new Point(5, 38);
txt5.Size = new Size(120, 24);
txt5.Name = "text" + v;
txt5.Text = txt5.Name;
txt5.AutoCompleteSource = AutoCompleteSource.CustomSource;
txt5.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
txt5.MouseClick += textBox5_MouseClick;
Label lbl3 = new Label();
Label lbl4 = new Label();
Label lbl5 = new Label();
Label lbl6 = new Label();
Label lbl7 = new Label();
Label lbl8 = new Label();
lbl3.Location = new Point(5, 15);
lbl3.Text = "Product";
lbl4.Location = new Point(192, 15);
lbl4.Text = "Quantity";
lbl5.Location = new Point(379, 15);
lbl5.Text = "Unit";
lbl6.Location = new Point(566, 15);
lbl6.Text = "Total Price";
lbl7.Location = new Point(753, 15);
lbl7.Text = "Unit Purchase Price";
lbl8.Location = new Point(903, 15);
lbl8.Text = "Unit Sell Price";
cmb4 = new ComboBox();
// Unit
cmb4.Location = new Point(379, 38);
cmb4.Size = new Size(120, 24);
whitePanel.BackColor = ColorTranslator.FromHtml("#ECF0F5");
whitePanel.Location = new Point(1, a * 10);
whitePanel.Size = new Size(1330, 60);
var _button = new Button();
_button.Text = "Dispose";
_button.Name = "DisposeButton";
_button.Location = new Point(1053, 38);
_button.MouseClick += _button_MouseClick;
whitePanel.Controls.Add(_button);
a = a + 5;
v = v + 1;
whitePanel.Controls.Add(lbl3);
whitePanel.Controls.Add(lbl4);
whitePanel.Controls.Add(lbl5);
whitePanel.Controls.Add(lbl6);
whitePanel.Controls.Add(lbl7);
whitePanel.Controls.Add(lbl8);
whitePanel.Controls.Add(txt1);
whitePanel.Controls.Add(txt2);
whitePanel.Controls.Add(txt3);
whitePanel.Controls.Add(txt4);
whitePanel.Controls.Add(txt5);
whitePanel.Controls.Add(cmb4);
panel1.Controls.Add(whitePanel);
}
In this way the output is like this..... By click on the New Purchase this multiple panel with text box will appear:
Multiple dynamic panel with multiple text box
Here the way of setting text box name is not seems better way to me. I want to use an array for set the name of text boxes.
And after all I want to save those values into db by click on the save button using an array or for loop... But I don't know how to define it..
Can anyone please help me?
And thanks in advance

With this approach, a gridview is usefull.
But within your question, the approach is;
int rowNum = 1;
public void tett() {
Control[] controlsToAdd = { new TextBox(), new TextBox(), new ComboBox(), new TextBox(), new TextBox(), new TextBox(), new Button() };
string[] labels = { "Product", "Quantity", "Unit", "Total Price", "Unit Purchase", "Unit Sell Price" };
Panel whitePanel = new Panel() {
Name = "wt",
Dock = DockStyle.Top,
AutoSizeMode = AutoSizeMode.GrowAndShrink,
AutoSize = true,
Padding = new Padding(0, 5, 0, 5),
BackColor = ColorTranslator.FromHtml("#ECF0F5")
};
int controlX = 5, controlY = 15, controlDistance = 15;
for (int i = 0; i < controlsToAdd.Length; i++) {
if (labels.Length > i) {
var label = new Label() {
Text = labels[i],
Location = new Point(controlX, controlY)
};
whitePanel.Controls.Add(label);
}
var control = controlsToAdd[i];
control.Location = new Point(controlX, controlY + 23);
control.Size = new Size(120, 24);
if (control is Button) {
control.Name = "disposeButton" + i;
control.Text = "Dispose";
control.Click += _button_MouseClick;
} else {
if(i == 0) { //if it is the Product textbox
((TextBox)control).AutoCompleteSource = AutoCompleteSource.CustomSource;
((TextBox)control).AutoCompleteMode = AutoCompleteMode.SuggestAppend;
//control.MouseClick += textBox5_MouseClick;
}
control.Name = "Text" + i;
control.Text = "Row" + rowNum + " Text" + i;
}
whitePanel.Controls.Add(control);
controlX += 120 + controlDistance;
}
panel1.Controls.Add(whitePanel);
whitePanel.BringToFront();
rowNum++;
}
private void _button_MouseClick(object sender, EventArgs e) {
//button does its job here
((Button)sender).Parent.Parent.Controls.Remove(((Button)sender).Parent);
}
public SqlConnection Conn { get; }
void save() {
foreach(Panel whitePanel in panel1.Controls) {
var sqlString = "INSERT INTO products(productField, quantityField, unitField, priceField, purchaseField, sellPriceField) VALUES (";
foreach (Control control in whitePanel.Controls) {
if(!(control is Label) && !(control is Button)) { //So, textbox or combobox remained
sqlString += "'"+ control.Text +"', ";
}
}
sqlString = sqlString.Substring(0, sqlString.Length - 2) + ")";
//Assume you have previous construction of SqlConnection as name "Conn"
if (Conn != null) {
if (Conn.State != ConnectionState.Open) Conn.Open();
using (var cmd = new SqlCommand(sqlString, Conn)) {
cmd.ExecuteNonQuery();
}
Conn.Close();
}
Console.WriteLine(sqlString);
}
}
I have tested and works as expected. If it is not suit your needs, make me know.

Retreive stackpanel children from GridViewItem (UWP)

I'm wondering how I can get the contents of a stackpanel which has been added to a GridViewItem (YouTube data API, the stackpanel contains a bitmap image for a thumbnail, the title of the video and a hidden TextBlock with the video ID for reference).
To clarify, I need to be able to obtain the contents of the StackPanel that is contained in the GridViewItem (such as the string of that hidden TextBox) so I can use the data to display the correct video.
Here's the code I use to create the stackpanel.
public async Task SearchByKeyword(string searchTerm)
{
GeneralFunctions gf = new GeneralFunctions();
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
ApiKey = gf.YouTubeAPIKey,
ApplicationName = this.GetType().ToString()
});
var searchListRequest = youtubeService.Search.List("snippet");
searchListRequest.Q = searchTerm; // Replace with your search term.
searchListRequest.MaxResults = 50;
searchListRequest.SafeSearch = SearchResource.ListRequest.SafeSearchEnum.Strict;
// Call the search.list method to retrieve results matching the specified query term.
var searchListResponse = await searchListRequest.ExecuteAsync();
List<string> videos = new List<string>();
List<string> channels = new List<string>();
List<string> playlists = new List<string>();
// Add each result to the appropriate list, and then display the lists of
// matching videos, channels, and playlists.
foreach (var searchResult in searchListResponse.Items)
{
switch (searchResult.Id.Kind)
{
case "youtube#video":
// Create a new StackPanel to insert as a ListViewItem
StackPanel sPanel = new StackPanel();
sPanel.HorizontalAlignment = HorizontalAlignment.Stretch;
sPanel.VerticalAlignment = VerticalAlignment.Stretch;
sPanel.Orientation = Orientation.Vertical;
sPanel.Width = 160;
sPanel.Height = 160;
// Create new StackPanel "Child" elements with alignment and width
TextBlock tb1 = new TextBlock();
tb1.Text = searchResult.Snippet.Title;
tb1.TextWrapping = TextWrapping.WrapWholeWords;
tb1.Width = 160;
// Create new StackPanel "Child" elements with alignment and width
TextBlock tb2 = new TextBlock();
tb2.Text = searchResult.Snippet.ChannelId;
tb2.TextWrapping = TextWrapping.WrapWholeWords;
tb2.Width = 160;
// Create new StackPanel child element for a 120x120 thumbnail of the videos from the search results
Image image = new Image();
image.Source = new BitmapImage(new Uri(searchResult.Snippet.Thumbnails.Default__.Url, UriKind.Absolute));
// Add a "hidden" child element to each stackpanel to hold the video identity
TextBlock h1 = new TextBlock();
h1.Text = searchResult.Id.VideoId.ToString();
h1.Visibility = Visibility.Collapsed;
h1.TextWrapping = TextWrapping.WrapWholeWords;
sPanel.Children.Add(image);
sPanel.Children.Add(tb1);
sPanel.Children.Add(tb2);
sPanel.Children.Add(h1);
SearchResults.Items.Add(sPanel);
break;
case "youtube#channel":
//SearchResults.Items.Add(String.Format("{0} ({1})", searchResult.Snippet.Title, searchResult.Id.ChannelId));
break;
case "youtube#playlist":
//playlists.Add(String.Format("{0} ({1})", searchResult.Snippet.Title, searchResult.Id.PlaylistId));
break;
}
}
//Console.WriteLine(String.Format("Videos:\n{0}\n", string.Join("\n", videos)));
//Console.WriteLine(String.Format("Channels:\n{0}\n", string.Join("\n", channels)));
//Console.WriteLine(String.Format("Playlists:\n{0}\n", string.Join("\n", playlists)));
}
Any help is appreciated.
Thanks

I guess I should never code tired right? The answer to my own question is actually very very simple
if (SearchResults.SelectedItems.Count > 0)
{
StackPanel sp = (StackPanel)SearchResults.SelectedItem;
TextBlock tb1 = (TextBlock)sp.Children[1];
TextBlock tb2 = (TextBlock)sp.Children[2];
TextBlock hf1 = (TextBlock)sp.Children[3];
}

How can I set column width in gtk c#?

Here is my code in TreeView in gtk. Please help me im new to gtk
Gtk.TreeViewColumn activeColumn = new Gtk.TreeViewColumn ();
activeColumn.Title = "Active";
activeColumn.Expand = true;
activeColumn.Sizing = TreeViewColumnSizing.Fixed;
activeColumn.MinWidth = 100;
Gtk.CellRendererPixbuf activeCell = new Gtk.CellRendererPixbuf ();
activeColumn.PackStart (activeCell, true);
activeColumn.AddAttribute (activeCell, "pixbuf", 6);

Persist Dynamically Added Controls w/ DataTriggers WPF

I am currently working on a WPF project that uses Caliburn.Micro and have hit a snag I was hoping you could help with. I have a form that allows the user to add new fields to a separate form with the intention that these new fields will persist. I am able to create these controls dynamically with the following code:
Grid tmpOuterGrid = new Grid();
RowDefinition rowDefinition1 = new RowDefinition();
RowDefinition rowDefinition2 = new RowDefinition();
rowDefinition1.Height = new GridLength(45, GridUnitType.Star);
rowDefinition2.Height = new GridLength(55, GridUnitType.Star);
tmpOuterGrid.RowDefinitions.Add(rowDefinition1);
tmpOuterGrid.RowDefinitions.Add(rowDefinition2);
tmpOuterGrid.Margin = new Thickness(0,0,0,10);
Grid tmpInnerGrid = new Grid();
Grid.SetRow(tmpInnerGrid, 0);
tmpInnerGrid.Margin = new Thickness(10,0,0,5);
tmpInnerGrid.Opacity = 0;
DataTrigger d = new DataTrigger();
Binding b = new Binding("DisplayFieldName");
b.Source = _fieldNames[primaryNameBase + "FieldTextBox"];
d.Binding = b;
d.Value = true;
Storyboard sbEnter = new Storyboard();
DoubleAnimation opAnimShow = new DoubleAnimation(1,new Duration(new TimeSpan(0,0,0,1)));
Storyboard.SetTargetProperty(sbEnter, new PropertyPath(UIElement.OpacityProperty));
sbEnter.Children.Add(opAnimShow);
Storyboard sbExit = new Storyboard();
DoubleAnimation opAnimHide = new DoubleAnimation(0, new Duration(new TimeSpan(0, 0, 0, 1)));
Storyboard.SetTargetProperty(sbExit, new PropertyPath(UIElement.OpacityProperty));
sbExit.Children.Add(opAnimHide);
BeginStoryboard bsEnter = new BeginStoryboard { Storyboard = sbEnter, Name = "beginStoryboardEnter" };
BeginStoryboard bsExit = new BeginStoryboard { Storyboard = sbExit, Name = "beginStoryboardExit" };
d.EnterActions.Add(bsEnter);
d.ExitActions.Add(bsExit);
Style st = new Style(typeof(Grid));
st.Triggers.Add(d);
tmpInnerGrid.Style = st;
TextBlock tb = new TextBlock();
tb.Name = primaryNameBase + "FieldHeaderText";
tb.Foreground = new SolidColorBrush(Color.FromArgb(136,255,255,255));
tb.FontSize = 14;
tb.Style = (Style) App.Current.Resources["NexaLightTextBlock"];
tb.HorizontalAlignment = HorizontalAlignment.Center;
tb.Text = fieldTextBox.DisplayText;
Border underline = new Border();
underline.BorderThickness = new Thickness(0, 0, 0, 1);
underline.BorderBrush = new SolidColorBrush(Color.FromArgb(136,49,250,250));
underline.VerticalAlignment = VerticalAlignment.Bottom;
underline.HorizontalAlignment = HorizontalAlignment.Center;
Binding binding = new Binding
{
Source = tb,
Path = new PropertyPath("ActualWidth"),
};
underline.SetBinding(FrameworkElement.WidthProperty, binding);
tmpInnerGrid.Children.Add(tb);
tmpInnerGrid.Children.Add(underline);
LowBorderTextBox lbtb = new LowBorderTextBox();
lbtb.Name = primaryNameBase + "FieldTextBox";
Grid.SetRow(lbtb, 1);
lbtb.Width = 140;
lbtb.Margin = new Thickness(10,0,0,0);
lbtb.FontColor = new SolidColorBrush(Colors.White);
lbtb.DisplayFontSize = 22;
lbtb.Style = (Style) App.Current.Resources["NexaLightCustomTextBox"];
lbtb.DisplayText = fieldTextBox.DisplayText;
lbtb.LostFocus += FieldLostFocus;
tmpOuterGrid.Children.Add(tmpInnerGrid);
tmpOuterGrid.Children.Add(lbtb);
wrapPanel.Children.Add(tmpOuterGrid);
I would then like these new controls to be persisted through application shutdowns. The approach I was thinking of taking was serializing the object into xaml and storing that in a file, and then reading this file and deserializing it to obtain the control object again, which would be added to my surrounding WrapPanel. This is all fine and dandy except for one detail. The controls that are created have a style with a datatrigger that is bound to a property of a NoteField object, there being one NoteField object for each of these types of control. I was planning on serializing the NoteField objects as well, so that I could just pull them back and hope that the binding would still be intact, but they implement the PropertyChangedBase interface of the Caliburn.Micro framework, and the NotifyOfPropertyChange() method is not marked as serializable. Here is the NoteField class:
[Serializable]
class NoteField : PropertyChangedBase
{
private string _controlName;
private bool _displayFieldName;
public bool DisplayFieldName
{
get { return _displayFieldName; }
set
{
_displayFieldName = value;
NotifyOfPropertyChange(() => DisplayFieldName);
}
}
private string _fieldName;
public string FieldName
{
get { return _fieldName; }
set
{
_fieldName = value;
NotifyOfPropertyChange(() => FieldName);
}
}
public NoteField(string controlName, string displayText)
{
DisplayFieldName = false;
_controlName = controlName;
FieldName = displayText;
}
public string GetControlName()
{
return _controlName;
}
public void SetControlName(string name)
{
_controlName = name;
}
}
I am not attached to using this class, but it was the only way I could think of having dynamically generated properties to bind to from the xaml. So, I guess my question is: is there a way that I can dynamically create controls that have bindings in them that can persist through application shutdowns? Am I on the right track, or should I do something else all together? Any help would be greatly appreciated. Thank you so much for your time.

Adding Icon to TreeViewItem

I have been asked to update a TreeVeiw in a WPF application that is built on the fly from a class object. As you will see treeveiw is not bound to anything. Below is not my code!!
<TreeView Grid.Row="0" HorizontalAlignment="Stretch" Name="tvLocations" VerticalAlignment="Stretch" SelectedItemChanged="tvLocations_SelectedItemChanged" />
private void BuildTreeVeiw(Location locationList)
{
this.Title = _selectedLoc.Name + " - Locations";
tvLocations.Items.Clear();
TreeViewItem tvitem;
tvitem = new TreeViewItem() { Header = locationList.Name, Uid = locationList.Id.ToString() };
if (locationList.Printers != null)
{
TreeViewItem tvprnitem = new TreeViewItem() { Header = "Printers" };
tvprnitem.FontWeight = FontWeights.Regular;
foreach (Printer sprinters in locationList.Printers)
{
TreeViewItem psubitem = new TreeViewItem() { Header = sprinters.Name, Uid = sprinters.Id.ToString() };
TreeViewItem psubitem1 = new TreeViewItem() { Header = String.Concat("UNC: ", sprinters.UNC) };
psubitem.Items.Add(psubitem1);
tvprnitem.Items.Add(psubitem);
}
tvitem.Items.Add(tvprnitem);
}
foreach (Location loc in locationList.Children)
{
AddChildren(loc, ref tvitem);
}
tvLocations.Items.Add(tvitem);
}
private void AddChildren(Location child, ref TreeViewItem tvi)
{
TreeViewItem tvitem;
tvitem = new TreeViewItem() { Header = child.Name, Uid = child.Id.ToString() };
if (child.Name == _currentLocation.Name)
{
tvitem.FontWeight = FontWeights.Bold;
}
if (child.Printers != null)
{
TreeViewItem tvprnitem = new TreeViewItem() { Header = "Printers" };
tvprnitem.FontWeight = FontWeights.Regular;
foreach (Printer sprinters in child.Printers)
{
TreeViewItem psubitem = new TreeViewItem() { Header = sprinters.Name, Uid = sprinters.Id.ToString() };
TreeViewItem psubitem1 = new TreeViewItem() { Header = String.Concat("UNC: ", sprinters.UNC) };
psubitem.Items.Add(psubitem1);
tvprnitem.Items.Add(psubitem);
}
tvitem.Items.Add(tvprnitem);
}
if (child.Children != null)
{
foreach (Location loc in child.Children)
{
AddChildren(loc, ref tvitem);
}
}
tvi.Items.Add(tvitem);
}
This builds the tree correctly and all I have been asked to do is add an icon to the TreeViewItem. The icon will be a different depending on whether it is a location or a printer within that location.
I cannot see how to add icons to TreeViewItems can anyone point me in the right direction?

I solved this by changing this line
tvitem = new TreeViewItem() { Header = child.Name, Uid = child.Id.ToString() };
To
tvitem = GetTreeView(child.Id.ToString(), child.Name, "location.png");
Adding this function
private TreeViewItem GetTreeView(string uid, string text, string imagePath)
{
TreeViewItem item = new TreeViewItem();
item.Uid = uid;
item.IsExpanded = false;
// create stack panel
StackPanel stack = new StackPanel();
stack.Orientation = Orientation.Horizontal;
// create Image
Image image = new Image();
image.Source = new BitmapImage
(new Uri("pack://application:,,/Images/" + imagePath));
image.Width = 16;
image.Height = 16;
// Label
Label lbl = new Label();
lbl.Content = text;
// Add into stack
stack.Children.Add(image);
stack.Children.Add(lbl);
// assign stack to header
item.Header = stack;
return item;
}
Worked perfectly.

Very nice.
I just add this inside method wich return stack panel, to make code much readable:
private StackPanel CustomizeTreeViewItem(object itemObj)
{
// Add Icon
// Create Stack Panel
StackPanel stkPanel = new StackPanel();
stkPanel.Orientation = Orientation.Horizontal;
// Create Image
Image img = new Image();
img.Source = new BitmapImage(new Uri("pack://application:,,/Resources/control.png"));
img.Width = 16;
img.Height = 16;
// Create TextBlock
TextBlock lbl = new TextBlock();
lbl.Text = itemObj.ToString();
// Add to stack
stkPanel.Children.Add(img);
stkPanel.Children.Add(lbl);
return stkPanel;
}
and in treeView Initialization
// Assign stack to header
item.Header = CustomizeTreeViewItem(itemObj);