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asp.net c# multiple PlaceHolders on page with multiple dynamic buttons

Im creating dynamic buttons and adding unique ones to 2 different placeholders. The click event is added correctly to each button but the buttons click event is not firing on the 2nd placeholder. If i change the buttons to be just add to the 1 placeholder they all fire correctly. I can alter things around to get round this but im curious as to why the 2nd placeholder is an issue. Code below:
code behind:
//Create Colour Button
RadButton buttonColour = new RadButton();
buttonColour.EnableEmbeddedBaseStylesheet = false;
buttonColour.EnableEmbeddedSkins = false;
buttonColour.CssClass = "VariationButtonsColour";
buttonColour.BackColor = System.Drawing.Color.White;
buttonColour.Height = new Unit(45);
buttonColour.Click += new EventHandler(ColourClick);
buttonColour.Text = Colour;
buttonColour.ButtonType = RadButtonType.SkinnedButton;
buttonColour.ID = dr["Colour"].ToString() ;
buttonColour.PressedCssClass = "VariationButtonsColourActive";
foreach (Control ctrl in phColourButtons.Controls)
{
if (ctrl is RadButton)
{
RadButton button = (RadButton)ctrl;
if (buttonColour.ID == button.ID)
{
ColourExists = ColourExists + 1;
}
}
}
if (ColourExists == 0)
{
phColourButtons.Controls.Add(buttonColour);
Label spacer = new Label();
spacer.Width = new Unit(15);
spacer.Text = " ";
phColourButtons.Controls.Add(spacer);
}
//Create Size Button
RadButton buttonSize = new RadButton();
buttonSize.EnableEmbeddedBaseStylesheet = false;
buttonSize.EnableEmbeddedSkins = false;
buttonSize.CssClass = "VariationButtonsSize";
buttonSize.BackColor = System.Drawing.Color.White;
buttonSize.Height = new Unit(45);
buttonSize.Click += new EventHandler(SizeClick);
buttonSize.Text = Size;
buttonSize.ButtonType = RadButtonType.SkinnedButton;
buttonSize.ID = dr["Size"].ToString();
buttonSize.PressedCssClass = "VariationButtonsSizeActive";
foreach (Control ctrl in phSizeButtons.Controls)
{
if (ctrl is RadButton)
{
RadButton button = (RadButton)ctrl;
if (buttonSize.ID == button.ID)
{
SizeExists = SizeExists + 1;
}
}
}
if (SizeExists == 0)
{
phSizeButtons.Controls.Add(buttonSize);
Label spacer = new Label();
spacer.Width = new Unit(15);
spacer.Text = " ";
phSizeButtons.Controls.Add(spacer);
}
If someone could explain why the 2nd placeholder is not working that would be great.

How to create event from control's that not yet create?

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!

Strange drawing behavior with labels

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);

Dynamic button, textbox and picturebox creation

Here I am doing a project where questions are presented in images. When the project loads, "start exam" button will be present in the screen. After pressing the button, it should create a picturebox, a textbox and a button for each image from specified path. Then users has to enter the answer in a textbox which is created dynamically. After the dynamic submit button is clicked for every image, the textbox values have to be stored in the listbox. I don't know how get the values from textbox. Can anyone help me out from this?
Here is my code:
PictureBox[] pics = new PictureBox[100];
TextBox[] txts = new TextBox[100];
Button[] butns = new Button[100];
FlowLayoutPanel[] flws = new FlowLayoutPanel[100];
private void button1_Click( Object sender , EventArgs e)
{
for (int i = 0; i < listBox1.Items.Count; i++)
{
flws[i] = new FlowLayoutPanel();
flws[i].Name = "flw" + i;
flws[i].Location = new Point(3,brh);
flws[i].Size = new Size(317,122);
flws[i].BackColor = Color.DarkCyan;
flws[i].BorderStyle = BorderStyle.Fixed3D;
pics[i] = new PictureBox();
pics[i].Location = new Point(953, 95 + brh);
pics[i].Name = "pic" + i;
pics[i].Size = new Size(300, 75);
pics[i].ImageLocation = "C:/" + listBox1.Items[i];
flws[i].Controls.Add(pics[i]);
txts[i] = new TextBox();
txts[i].Name = "txt" + i;
txts[i].Location = new Point(953, 186 + brh);
flws[i].Controls.Add(txts[i]);
butns[i] = new Button();
butns[i].Click += new EventHandler(butns_Click);
butns[i].Text = "submit";
butns[i].Name = "but" + i;
butns[i].Location = new Point(1100, 186 + brh);
flws[i].Controls.Add(butns[i]);
flowLayoutPanel1.Controls.Add(flws[i]);
brh += 130;
}
}
private void butns_Click(object sender, EventArgs e)
{
Button butns = sender as Button;
TextBox txts = sender as TextBox;
listBox2.Items.Add("text values " + txts.Text.ToString());
}

I would create a usercontrol to combine the controls.
Search for "custom usercontrol c#"
Regards.

Try this...
private void butns_Click(object sender, EventArgs e)
{
Button butns = sender as Button;
string btnName = butns.Name;
string Id = btnName.Substring(3);
string txtName = "txt" + Id;
listBox2.Items.Add("text values " + GetValue(txtName));
}
private string GetValue(string name)
{
TextBox txt = new TextBox();
txt.Name = name;
foreach (Control ctl in this.Controls)
{
if (ctl is FlowLayoutPanel)
{
foreach (Control i in ctl.Controls)
{
if (((TextBox)i).Name == txt.Name)
{
txt = (TextBox)i;
return txt.Text;
}
}
}
}
return txt.Text;
}

When dynamically adding controls to a form only one will show

I am adding two controls dynamically during runtime, however only the control that is made first is displayed.
Here is the code:
Label tempLab = new Label();
tempLab.text = "Test Label";
MyControl.Controls.Add(tempLab);
tempLab.Location = new Point(5,5);
Button tempBut = newButton()
tempBut.text = "Test Button";
MyControl.Controls.Add(tempBut);
tempBut.Location = new Point(20,20);
Isn't copypasta so ignore syntax errors with caps.
Any ideas ?
They are being added to a groupbox. I have tried adding them to a panel or just the form and the same issue occurs. I don't need event handlers, so please don't cite that requirement.

I quickly tried your code pasting it in a windows form constructor. It runs ok, but the label is slightly overlapping the button because of its size. You may want to autosize it:
Label tempLab = new Label();
tempLab.Text = "Test Label";
tempLab.AutoSize = true;
Controls.Add(tempLab);
tempLab.Location = new Point(5,5);
Button tempBut = new Button();
tempBut.Text = "Test Button";
Controls.Add(tempBut);
tempBut.Location = new Point(20,20);
Oh, by the way. You mentioned you are using MyControl as a Panel or a GroupBox. Please ensure that you are also adding MyControl to your Controls collection.

it appears that the location does not have a Size which becomes a flat line so to speak which is not visible.. this tempBut.Location = new Point(20,20); try changing to this
this.tempBut.Location = new System.Drawing.Point(20,20);
this.tempBut.Size = new System.Drawing.Size(30, 15);

hope this helps. I am adding a array of MyTextBox into panel.
Point prevlocation = new Point(0,0);
foreach (object key in keys) //List of Objects or which make new controls
{
MyTextBoxControlArray[i] = new MyTextBoxUserControl(key); //User control but could be any control like textbox etc
MyTextBoxControlArray[i].Width = this.panel1.Width - 50;
MyTextBoxControlArray[i].AutoSize = true;
MyTextBoxControlArray[i].InfoLoad += new MyTextBoxUserControl.InfoLoadEventHandler(Form1_InfoLoad);
if (i == 0)
{
//first control
prevlocation.Y += 3;
prevlocation.X += 3;
MyTextBoxControlArray[i].Location = prevlocation;
}
else
{
//adjsuting height and width
MyTextBoxControlArray[i].Location = new System.Drawing.Point(
prevlocation.X,
prevlocation.Y + MyTextBoxControlArray[i].Height+3);
}
prevlocation = MyTextBoxControlArray[i].Location;
i++;
}
this.panel1.Controls.AddRange(MyTextBoxControlArray); //in panel i can add a array of controls , but this could be done one by one

string sql3 = "SELECT COUNT(*) from systeminfo";//counting no of element
n = dm.countelement(sql3);
int i, c = 1;
int m = 100;
for (i = 0; i < n; i++, c++)
{
sql3 = " SELECT Company_name FROM systeminfo LIMIT " + (i + 1) + " OFFSET " + i + "";
string cname = dm.getlang(sql3);
PictureBox pb = new PictureBox();
Label lb = new Label();
pb.Location = new System.Drawing.Point(m, 30 + (30 * i));
lb.Location = new System.Drawing.Point(m-30, 30 + ((30 * i)-30));
pb.Name = "p" + c;
lb.Name = "l" + c;
lb.Size = new System.Drawing.Size(100, 20);
pb.Size = new System.Drawing.Size(30, 30);
lb.Text = cname;
lb.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
lb.BackColor = Color.Transparent;
pb.ImageLocation = #"..\image\image.jpg";
pb.MouseDown += new System.Windows.Forms.MouseEventHandler(this.picmap1_MouseDown_1);
pb.MouseMove += new System.Windows.Forms.MouseEventHandler(this.picmap1_MouseMove_1);
pb.MouseUp += new System.Windows.Forms.MouseEventHandler(this.picmap1_MouseUp_1);
picmap1.Controls.Add(pb);
picmap1.Controls.Add(lb);
c++;
}
private void picmap1_MouseMove_1(object sender, MouseEventArgs e)
{
var c = sender as PictureBox;
if (!_dragging || null == c) return;
c.Top = e.Y + c.Top - _yPos;
c.Left = e.X + c.Left - _xPos;
foreach (Control d in picmap1.Controls)
if (d is Label)
{
d.Top = e.Y + d.Top - _yPos;
d.Left = e.X + d.Left - _xPos;
}
}
private void picmap1_MouseUp_1(object sender, MouseEventArgs e)
{
var c = sender as PictureBox;
if (null == c) return;
_dragging = false;
}
private void picmap1_MouseDown_1(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
_dragging = true;
_xPos = e.X;
_yPos = e.Y;
foreach (Control d in picmap1.Controls)
if (d is Label)
{
_xPos = e.X;
_yPos = e.Y;
}
}
this is example of dynamic add control with move on mouse drag