I am trying to add controls to a panel from a foreach loop.
When i press the button i want every element from a array to show as checkbox. This is wordking fine, then i want a numeric updown behind the checkbox so users can select a value.
The code for creating the checkboxes works just fine, for every item in my array it displays e checkbox. But it only shows 1 NumericUpDown.
Can anybody tell me why it only shows 1 numeric updown, while it shows all of the checkboxes?
Here is my code:
private void bierButton_Click(object sender, EventArgs e)
{
int height = 1;
int padding = 10;
int i = 0;
int x = 0;
CheckBox[] chk = new CheckBox[10];
NumericUpDown[] nmr = new NumericUpDown[10];
orderBox.Clear();
hideBtn();
foreach (string bieren in Drinks.bier)
{
chk[i] = new CheckBox();
nmr[i] = new NumericUpDown();
chk[i].Name = i.ToString();
chk[i].Text = Drinks.bier[i];
chk[i].TabIndex = i;
chk[i].AutoCheck = true;
chk[i].Bounds = new Rectangle(10, 0 + padding + height, 200, 22);
panel1.Controls.Add(chk[i]);
testPanel.Controls.Add(nmr[i]);
height += 22;
i++;
}
}
It appears you are not updating the position of your NumericUpDown controls.
All of them are there, they are just on top of one another.
Consider this change:
private void bierButton_Click(object sender, EventArgs e)
{
int height = 1;
int padding = 10;
int i = 0;
int x = 0;
CheckBox[] chk = new CheckBox[10];
NumericUpDown[] nmr = new NumericUpDown[10];
orderBox.Clear();
hideBtn();
foreach (string bieren in Drinks.bier)
{
chk[i] = new CheckBox();
nmr[i] = new NumericUpDown();
chk[i].Name = i.ToString();
chk[i].Text = bieren; // Drinks.bier[i];
chk[i].TabIndex = i;
chk[i].AutoCheck = true;
chk[i].Bounds = new Rectangle(10, 0 + padding + height, 200, 22);
// Start New Code
nmr[i].Bounds = new Rectangle(10, 0 + padding + height, 200, 22);
// End New Code
panel1.Controls.Add(chk[i]);
testPanel.Controls.Add(nmr[i]);
height += 22;
i++;
}
}
I also changed one line to chk[i].Text = bieren;.
Related
I wanna change the Text properties of Label using Buttons just like in hangman; but after I created the Label, I became confused when I try to access the specific Label
// creating label
for (int i = 0; i < numericUpDown1.Value; i++)
{
Label l = new Label();
l.Text = "_";
l.Width = 20;
l.Height = 25;
l.Left = i * 20 + 510;
l.Top = 20;
l.BackColor = Color.Transparent;
groupBox2.Controls.Add(l);
}
// function to change the label text
// if I clicked the button
// the first label text will be changed to the text in the button i clicked
private void B_Click(object sender, EventArgs e)
{
var thsBtn = (Button)sender;
bool benar = false;
if (benar == false)
{
thsBtn.Text = " ";
thsBtn.Enabled = false;
}
else
{
thsBtn.Enabled = false;
}
}
You can organize created Labels into a collection, say, List<Label>:
private List<Label> m_CreatedLabels = new List<Label>();
...
// Remove all previous labels
foreach (Label lbl in m_CreatedLabels)
lbl.Dispose();
m_CreatedLabels.Clear();
// Create new ones
for (int i = 0; i < numericUpDown1.Value; i++) {
m_CreatedLabels.Add(new Label() {
Text = "_",
Width = 20,
Height = 25,
Left = i * 20 + 510,
Top = 20,
BackColor = Color.Transparent,
Parent = groupBox2
});
}
Now you have m_CreatedLabels collection to work with created Labels, e.g.
private void B_Click(object sender, EventArgs e) {
var thsBtn = sender as Button;
// you may want to add a condition into FirstOrDefault(), e.g.
// .FirstOrDefault(lbl => lbl.Text == "_")
// - first label with "_" Text
Label lblToProcess = m_CreatedLabels
.FirstOrDefault();
if (null != lblToProcess)
lblToProcess.Text = thsBtn.Text;
thsBtn.Enabled = false;
}
One option here is to give your dynamically created Label instances a Name. From there, you should be able to use ControlCollection.Find to find your Label instances by name.
private void CreateLabels()
{
for (int i = 0; i < numericUpDown1.Value; i++)
{
Label l = new Label();
l.Name = $"DynamicLabel{i}";
l.Text = "_";
l.Width = 20;
l.Height = 25;
l.Left = i * 20 + 510;
l.Top = 20;
l.BackColor = Color.Transparent;
groupBox2.Controls.Add(l);
}
}
private void DoSomethingWithADynamicLabel(int dynamicLabelIndex)
{
Label l = groupBox2.Controls.Find($"DynamicLabel{i}", true).FirstOrDefault() as Label;
if (l is null)
{
// Couldn't find the label...
return;
}
// Do something with l
}
When creating the Label instances inside CreateLabels, I'm simply appending the for loop's counter to the string "DynamicLabel". This gives you a bunch of Labels with names like "DynamicLabel0", "DynamicLable1", "DynamicLabel2", etc...
Then in DoSomethingWithADynamicLabel, assuming you have the index of the Label you want to deal with, you can use groupBox2.Controls.Find to actually find the Label you're interested in. ControlCollection.Find returns Control[], so calling FirstOrDefault will take the first item from the array or null if no Control with the given name exists.
I have a MetroTabControl named mtcNewExpTabControl with four pages(mtpSettings, mtpNewExp, mtpTempImages, mtpCompareImages). I am starting New Experiment on mtpNewExp page and get image after clicking "StartExperiment" button. User can get many images. After completion of experiment, I add images to imageList1.Images.
When I click on the mtpTempImages tabPage mtcNewExpTabControl_SelectedIndexChanged triggered and images are displayed with combobox named with imageList1.Images.Keys[i]. I can show many combobox and picturebox pairs on mtpTempImages.
On mtpTempImages there is also a mtbCompareImages button. User can check checkboxes next to the picturebox named same with checboxName. After checking all the checkboxes needed to compared, user will click on the "Compare Images" button. I want to change active tabPage to mtpCompareImages without clicking on the tab. mtbCompareImages button should be enough for that. I can show images on mtpTempImages but I could not succeded that on mtpCompareImages tabpage. Active tabPage also do not change to mtpCompareImages tabPage. What should I do?
List<MetroCheckBox> cbxTempImages = new List<MetroCheckBox>();
List<MetroCheckBox> cbxCompareImages = new List<MetroCheckBox>();
List<PictureBox> pbxTempImages = new List<PictureBox>();
List<PictureBox> pbxCompareImages = new List<PictureBox>();
private void mtbCompareImages_Click(object sender, EventArgs e)
{
for (int i = 0; i < cbxTempImages.Count(); i++)
{
if (cbxTempImages[i].Checked == true)
{
imageListChecked.Images.Add(pbxTempImages[i].Name, pbxTempImages[i].Image);
}
}
this.mtcNewExpTabControl.SelectedTab = mtpCompareImages;
}
private void mtcNewExpTabControl_SelectedIndexChanged(object sender, EventArgs e)
{
if((MetroTabPage)this.mtcNewExpTabControl.SelectedTab == mtpTempImages)
{
for (int i = 0; i < imageList1.Images.Count; i++)
{
cbxTempImages.Add(new MetroCheckBox());
cbxTempImages[i].Name = imageList1.Images.Keys[i].ToString();
cbxTempImages[i].Size = new Size(15, 15);
cbxTempImages[i].BackColor = Color.Transparent;
cbxTempImages[i].Location = new Point(x, y);
//PictureBox pic = new PictureBox();
pbxTempImages.Add(new PictureBox());
pbxTempImages[i].Name = imageList1.Images.Keys[i].ToString();
pbxTempImages[i].Image = imageList1.Images[i];
pbxTempImages[i].SizeMode = PictureBoxSizeMode.StretchImage;
pbxTempImages[i].Location = new Point(x + 15, y);
x += 120;
if (x > this.pnlTempImages.Width - 120)
{
x = 10; y += 100;
}
this.pnlTempImages.Controls.Add(cbxTempImages[i]);
this.pnlTempImages.Controls.Add(pbxTempImages[i]);
}
}
else if((MetroTabPage)this.mtcNewExpTabControl.SelectedTab == mtpCompareImages)
{
x = 10; y = 10;
for (int i = 0; i < imageListChecked.Images.Count; i++)
{
cbxCompareImages.Add(new MetroCheckBox());
//MetroCheckBox cbxCI = new MetroCheckBox();
cbxCompareImages[i].Name = imageListChecked.Images.Keys[i].ToString();
cbxCompareImages[i].Size = new Size(15, 15);
cbxCompareImages[i].BackColor = Color.Transparent;
cbxCompareImages[i].Location = new Point(x, y);
//PictureBox picCI = new PictureBox();
pbxCompareImages.Add(new PictureBox());
pbxCompareImages[i].Name = imageListChecked.Images.Keys[i].ToString();
pbxCompareImages[i].Image = imageListChecked.Images[i];
pbxCompareImages[i].SizeMode = PictureBoxSizeMode.StretchImage;
pbxCompareImages[i].Location = new Point(x + 15, y);
x += 120;
if (x > this.pnlCompareImages.Width - 120)
{
x = 10; y += 100;
}
this.pnlCompareImages.Controls.Add(cbxCompareImages[i]);
this.pnlCompareImages.Controls.Add(pbxCompareImages[i]);
}
}
InitializeComponent();
}
My program is the create datagridview program that user can create dynamic columns like row,column,panel(panel is quantity of the panel) so user can mark it too,
as I know I can mark the cell with CurrentCell.Style.BackColor
when I generate datagridview I have assign name of it But !!!! it cant use the new datagridvieweventhandler command so I cant do any thing with each datagridview
so this is my Datagridview Generate Code
string[] Panelname = { "One","Two","Three","Four","Five"};
for(i=0;i<Panelname.length;i++){
Generate(Panelname[i],a,b)}
DataGridView generate(string name,int columns,int rows)
{
int i;
Control Gen;
Control LB;
LB = new Label();
LB.Text = "Panel : "+name;
LB.Location = new Point(50 + 120 / (c - 1) + 900 / c , 315);
LB.BackColor = Color.Silver;
Gen = new DataGridView();
Gen.Name = name.ToString();
Gen.Size = new Size(900/c,300 );
Gen.Location = new Point(120 / (c ) + 900 / c, 0);
DataGridView CH = (DataGridView)Gen;
CH.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
CH.CellClick += new DataGridViewCellEventHandler(CH_CellClick);
CH.Location = new Point(0+locate, 0);
for (i = 1; i <= columns; i++)
{
CH.Columns.Add("", "");
}
for (i = 1; i < rows; i++)
{
CH.Rows.Add("", "");
}
dataGridView1.Controls.Add(LB);
dataGridView1.Controls.Add(CH);
return null;
}
How can I create the event handler for each datagridview that I'm create it dynamicly ?
thankyou for your kind
Create your datagridview.
for (int i = 0; i < 10; i++)
{
DataGridView d = new DataGridView();
d.MouseClick += dataGridView_MouseClick;
}
Use the add handler method.
private void dataGridView_MouseClick(object sender, MouseEventArgs e)
{
// Use sender to determine which datagridview fired the event
}
The problem that I found is when I'm create datagridview in the datagridview it hard to define it what's datagridview that you're clicking so I have stuck in this problem for a while
And now I found out the way's to through out my problem now, here it is
for(i=0;i
DataGridView generate2(string name, int columns, int rows,int form)
{
Control Gen;
Control LB;
int x = 1;
int runcolumn = columns;
int runrow = rows;
int count=0;
LB = new Label();
LB.Text = "Panel : " + name;
LB.Location = new Point(50 + 120 / (c - 1) + 900 / c, 320);
LB.BackColor = Color.Silver;
Gen = new DataGridView();
Gen.Name = name.ToString();
Gen.Location = new Point(120 / (c) + 900 / c, 0);
DataGridView CH = (DataGridView)Gen;
CH.RowTemplate.Height = 290 / rows;
CH.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
CH.Size = new Size(900 / c, 300);
CH.RowHeadersWidth = 10;
CH.ColumnHeadersHeight = 10;
CH.Location = new Point(0 + locate, 0);
And********* CH.Click += new EventHandler(control_click);********* this is my hero's
private void control_click(object sender, EventArgs e)
{
if (sender is DataGridView)
{
DataGridView A = (DataGridView)sender;
textBox2.Text = A.CurrentCell.RowIndex.ToString();
textBox1.Text = A.CurrentCell.ColumnIndex.ToString();
textBox3.Text = A.Name.ToString();
}
}
in the send control click function you can find what's kind of your control and cast it , so whatever control that you click it you can set it's function now!
How to get value of checkboxes (and the textbox upon change in text) in real time with form particulars that are all generated via code?
This following code produces a form upon button press, the form has checkboxes and a richtextbox. Ideally I want any interaction to have an effect, so if I paste in a grid of ones and zeros the checkboxes update, and once a checkbox gets click, the corresponding one or zero in the textarea will update (So that I can then copy the grid (matrix) out and into another program.
I know how to get the events using the visual studio GUI maker, but not from a programmatically created form like this.
private void begin_button_Click(object sender, EventArgs e)
{
// Build the child form
Form check_box = new Form();
check_box.FormBorderStyle = FormBorderStyle.FixedSingle;
// Get the values from the textboxes
int height = Convert.ToInt16(this.height_input.Text);
int width = Convert.ToInt16(this.width_input.Text);
// Set the dimensions of the form
check_box.Width = width * 15 + 40;
check_box.Height = ( height * 15 + 40 ) * 3;
// Build checkboxes for the checkbox form
CheckBox[] chk;
chk = new CheckBox[height * width];
int count = 0;
for (int i = 1; i <= height; i++)
{
for (int j = 1; j <= width; j++)
{
chk[count] = new CheckBox();
chk[count].Name = count.ToString();
chk[count].Width = 15; // because the default is 100px for text
chk[count].Height = 15;
chk[count].Location = new Point(j * 15, i * 15);
chk[count].CheckedChanged += new EventHandler(this.CheckedChanged);
check_box.Controls.Add(chk[count]);
count += 1;
//Console.WriteLine(" i: " + i + " j: " + j + " Count: " + count);
}
}
RichTextBox output_area;
output_area = new RichTextBox();
output_area.Location = new Point(chk[0].Location.X, chk[count-1].Location.Y + 30);
check_box.Controls.Add(output_area);
output_area.Text = "hello world\n1,1,1,1,1,1,1,1,1\n0,0,0,0,0,1,0,1\nthese ones and zeros are meant to update in real time!";
output_area.Width = check_box.Width - 40;
output_area.Height = check_box.Height / 2;
// Run the form
check_box.ShowDialog();
}
EDIT:
I have added the event handler and it's working, however I can't access the checkbox form, only the main form.
private void CheckedChanged(object sender, EventArgs e)
{
//throw new NotImplementedException();
CheckBox x = (CheckBox)sender;
Console.WriteLine(x);
Console.WriteLine(x.Name.ToString());
}
Have a look at the .Designer file that the form designer generates for you!
Anyway, in your loop, try something like this:
chk[count].CheckedChanged += MyFancyHandler;
And the handler itself will look just like a normal handler:
private void MyFancyHandler( object sender, EventArgs e )
{
// ...
}
Also notice that the sender argument there will contain a reference to whichever checkbox/control the event refers to.
Below code updates matrix text in the rich text box when check box check state changed.
RichTextBox output_area;
CheckBox[] chk;
Size MatrixSize;
private void begin_button_Click()
{
// Build the child form
Form check_box = new Form();
check_box.FormBorderStyle = FormBorderStyle.FixedSingle;
check_box.StartPosition = FormStartPosition.CenterScreen;
// Get the values from the textboxes
int height = Convert.ToInt16("10");
int width = Convert.ToInt16("7");
MatrixSize = new Size(width, height);
// Set the dimensions of the form
check_box.Width = width * 15 + 40;
check_box.Height = (height * 15 + 40) * 3;
// Build checkboxes for the checkbox form
chk = new CheckBox[height * width];
int count = 0;
for (int i = 1; i <= height; i++)
{
for (int j = 1; j <= width; j++)
{
chk[count] = new CheckBox();
chk[count].Name = count.ToString();
chk[count].Width = 15; // because the default is 100px for text
chk[count].Height = 15;
chk[count].Location = new Point(j * 15, i * 15);
check_box.Controls.Add(chk[count]);
chk[count].CheckedChanged += new EventHandler(CheckBox1_CheckedChanged);
count += 1;
//Console.WriteLine(" i: " + i + " j: " + j + " Count: " + count);
}
}
output_area = new RichTextBox();
output_area.Location = new Point(chk[0].Location.X, chk[count - 1].Location.Y + 30);
check_box.Controls.Add(output_area);
output_area.Text = "hello world\n1,1,1,1,1,1,1,1,1\n0,0,0,0,0,1,0,1\nthese ones and zeros are meant to update in real time!";
output_area.Width = check_box.Width - 40;
output_area.Height = check_box.Height / 2;
// Run the form
check_box.ShowDialog();
}
private void CheckBox1_CheckedChanged(Object sender, EventArgs e)
{
CheckBox c = (CheckBox)sender;
Debug.WriteLine(c.Name);
StringBuilder sb = new StringBuilder();
int count = 0;
for (int i = 1; i <= MatrixSize.Height; i++)
{
for (int j = 1; j <= MatrixSize.Width; j++)
{
if (chk[count].Checked)
{
sb.Append("1,");
}
else
{
sb.Append("0,");
}
count += 1;
}
sb.Append("\r\n");
}
output_area.Text = sb.ToString();
}
on startup I'm generating a lot of controls 90 to be exact and everything is working ok EXCEPT for the labels they are not being drawn or something? they are there because I can click them and they show proper ID (click event) here's the genereation code
private static bool ClientsLoaded = false;
private static WebBrowser[] Clients = new WebBrowser[45];
private static Label[] ClientLabel = new Label[45];
private static int MaximizedClient = -1;
public Form1()
{
InitializeComponent();
int WBoffsetX = 0;
int WBoffsetY = 0;
int lbloffsetX = 0;
int lbloffsetY = 0;
for (int i = 0; i < 45; i++)
{
var wb = new WebBrowser();
Clients[i] = wb;
wb.ScrollBarsEnabled = false;
wb.Height = 12;
wb.Width = 12;
wb.Location = new Point(2 + WBoffsetX, 2 + WBoffsetY);
WBoffsetX += 13;
wb.ScriptErrorsSuppressed = true;
this.Controls.Add(wb);
ClientLabel[i] = new Label();
ClientLabel[i].Name = "lbl_" + i;
ClientLabel[i].Font = new Font("Arial", 12);
ClientLabel[i].ForeColor = System.Drawing.Color.White;
ClientLabel[i].Location = new Point(12 + lbloffsetX, 450 + lbloffsetY);
lbloffsetX += 22;
ClientLabel[i].Click += new EventHandler(lbl_click);
ClientLabel[i].Text = "C" + i + ": o";
this.Controls.Add(ClientLabel[i]);
}
}
I've tried adding a button with for(45) clientlabel[i].Refresh() and it did nothing I tried changing the visibilty of them all to false and then back to true and nothing however I did find 1 thing interesting if I hide lbl_1 label 2 text will appear if I had label 2 label 3 text will appear but if I change the previous label back to visible they stay invisible textwise
I can click in a line on the form and
private void lbl_click(object sender, EventArgs e)
{
int id = -1;
var s = sender.ToString();
for(int i = 0; i<=45; i++)
{
if (s.Contains("C" + i + ":"))
{
id = i;
}
}
MessageBox.Show("Hello label, " + id);
}
will pop up the proper ids etc
does anyone know what's causing this maybe? or how to fix it
Well, I don't know what is the problem. This code works well enough and it has only marginal differences with the original(AutoSize property, explicit statement of Height and Width, and minor Location adjustment):
for (int i = 0; i < ClientLabel.Length; i++)
{
// Web browsers
WebBrowser wb = new WebBrowser()
{
ScrollBarsEnabled = false,
Height = 12,
Width = 12,
Location = new Point(2 + WBoffsetX, 2 + WBoffsetY),
ScriptErrorsSuppressed = true
};
WBoffsetX += 13;
Clients[i] = wb;
// Labels
Label label = new Label()
{
Name = "label_" + i,
Text = "Data",
AutoSize = true,
Location = new Point(50 + lbloffsetX, 50 + lbloffsetY),
Width = 100,
Height = 20,
Font = new Font("Arial", 12),
ForeColor = System.Drawing.Color.White,
};
label.Click += new EventHandler(lbl_click);
ClientLabel[i] = label;
lbloffsetX += 30;
}
this.Controls.AddRange(Clients);
this.Controls.AddRange(ClientLabel);