I want create a Tab Panel with link buttons, my code is:
// create title panel
for (int i = 0; i < 5; i++)
{
Ctrl.Controls.Add(new LiteralControl(string.Concat("<li role=\"presentation\" class=\"rightcolomn\">")));
LinkButton lb = new LinkButton();
lb.ID = i.ToString();
lb.Text =i.ToString();
lb.Click += new EventHandler(this.lbnTitle_Click);
Ctrl.Controls.Add(lb);
Ctrl.Controls.Add(new LiteralControl("</li>"));
}
// this code we create panels
for (int i = 0; i < 5; i++)
{
Panel pn = new Panel();
pn.ID = "p" + i.ToString();
for (int j = 0; j < 3; j++)
{
//some code add to panel
}
pn.Visible = false;
Ctrl.Controls.Add(pn);
}
// code for link button click is:
protected void lbnTitle_Click(object sender, EventArgs e)
{
LinkButton ClickedLink = (LinkButton)sender;
}
When I click the link button, I want the corresponding panel to be set to visible, something like this: panel("p"+linkbutton.ID).Visible=true
how can access to panel and do it?
Ctrl is an asp:PlaceHolder.
Don't use control-IDs with numbers only, it's unlikely that they will be unique and it's also not very meaningful. However, use FindControl on the NamingContainer.
protected void lbnTitle_Click(object sender, EventArgs e)
{
LinkButton ClickedLink = (LinkButton) sender;
Control container = ClickedLink.NamingContainer;
Panel panel = (Panel) container.FindControl("p" + ClickedLink.ID);
panel.Visible = true;
}
string placeHolderId = "...";
string panelId = "p" + linkbutton.ID;
(this.Form.FindControl("placeHolderId").FindControl("panelId") as Panel).Visible=true;
Related
I have dynamically created a list of buttons and set it to the form. After clicking one of them, the very next button to it will appear as selected.
Is it possible to deselect all controls dynamically created in a form? Particularly, can I, somehow, deselect that button after clicking the one before it?
private void GenerateButton()
{
for (int i = 1; i <= 15; ++i)
{
for (int j = 1; j <= 25; ++j)
{
Button button = new Button();
button.Location = p;
button.Size = size;
button.BackColor = Color.RoyalBlue;
button.Padding = pad;
button.Click += new EventHandler(button_Click);
this.Controls.Add(button);
p.X += 23;
}
p.Y += 23;
p.X = 0;
}
}
protected void button_Click(object sender, EventArgs e)
{
Button but = sender as Button;
but.Enabled = false;
but.BackColor = Color.LightGray;
}
You might try this method, which will select the next button in the form, after clicking on a button. You need to attach this button event handler to all your buttons. The order of buttons is determined by their order in the form Controls list. If you want a specific order, you will need to use LINQ to sort Controls by their TabOrder property and ensure your TabOrder is set properly
private void button_Click(object sender, EventArgs e)
{
var btn = (Control)sender;
btn.Enabled = false;
btn.BackColor = Color.LightGray;
// Where is this button in the form?
var indexOfThisButton = this.Controls.IndexOf(btn);
// Find next button index
for (int i = indexOfThisButton+1; i < this.Controls.Count; i ++)
{
// If it's a button, select it
if (this.Controls[i] is Button)
{
this.Controls[i].Select();
return;
}
}
// If we got down here we have got to the end of the controls list, start again
for (int i = 0; i < this.Controls.Count; i++)
{
// If it's a button, select it
if (this.Controls[i] is Button)
{
this.Controls[i].Select();
return;
}
}
}
When btnAsset is double-clicked, it should go to allButton_Click.
But it only goes in one click. how can I do that?
public void Add(MainForm frm)
{
this.form1 = frm;
for (int i = 0; i < 10; i++)
{
btnAsset[i] = new Button();
btnAsset[i].Tag = i;
btnAsset[i].Name = "Asset-" + i.ToString();
btnAsset[i].Width = 150;
btnAsset[i].Height = 120;
btnAsset[i].Visible = true;
btnAsset[i].BackColor = Color.GreenYellow;
form1.flowLayoutVideo.Controls.Add(btnAsset[i]);
btnAsset[i].DoubleClick += new EventHandler(allButton_Click);
}
}
should go here when double clicked
void allButton_Click(object sender, EventArgs e)
{
Button p = sender as Button;
if (p != null)
{
int i = (int)p.Tag;
MessageBox.Show((i + 1).ToString() + ". seçildi");
}
}
Look what the docs says about it:
By default, the ControlStyles.StandardClick and ControlStyles.StandardDoubleClick style bits are set to false for the Button control, and the DoubleClick event is not raised.
You can change this behaviour by creating your own button class deriving from Button and change the style bits.
In the program, by clicking button2, is created a table and imlemented data insertion. Also created textbox and login button, which is used for reading data from this textbox. When the login button is pressed, next actions should happen:
MessageBox should display some text;
login.Text should be changed;
table, which was created by clicking button2 should be deleted.
I dont know actually how to get access from login.click event handler to table in button2. I guess it should be done somehow by using EventArgs, but i dont understand how. Also I thought about creating some variable outside button2 handler scope, and use it later, but I guess its a bad practise.
Please,tell me how to solve this, or maybe its just wrong decision to create windows forms components such a way? if it`s so, then how to?) here is my code:
private void button2_Click(object sender, EventArgs e)
{
label1.Hide();
label2.Hide();
textBox1.Hide();
textBox2.Hide();
button2.Hide();
int user_count = Int32.Parse(textBox2.Text);
int file_count = Int32.Parse(textBox1.Text);
DataGridView T = new DataGridView();
T.Dock = DockStyle.Top;
T.AutoResizeColumns();
T.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
T.ColumnCount = file_count + 1;
T.RowCount = user_count + 1;
Controls.Add(T);
Controller_cs c = new Controller_cs(user_count, file_count);
for(int i = 1; i < T.RowCount; i++)
{
T.Rows[i].Cells[0].Value = c.user_name_insertion(i-1);
}
for (int i = 1; i < T.ColumnCount; i++)
{
T.Rows[0].Cells[i].Value = c.file_name_insertion(i - 1);
}
for(int i = 1; i < T.RowCount;i++)
{
for(int j = 1; j < T.ColumnCount;j++)
{
T.Rows[i].Cells[j].Value = c.rigts_insertion(j-1,i-1);
}
}
Label l = new Label();
l.Text = "Name";
l.Left = 20;
l.Top = 180;
Controls.Add(l);
TextBox username = new TextBox();
username.Left = 20;
username.Top = 210;
Controls.Add(username);
Button login = new Button();
login.Text = "Enter";
login.Left = 130;
login.Top = 175;
login.Click += login_handler;
Controls.Add(login);
}
private void login_handler(object sender, EventArgs e)
{
Button b = (Button)sender;
if (b.Text == "Enter")
{
b.Text = "Exit";
MessageBox.Show("Enter is done");
}
else
{
b.Text = "Enter";
MessageBox.Show("Quit is done");
}
}
I'm making a game with 6 dynamic buttons as "btn" at the top row and other 6 "lamp buttons" on a buttom row.
Player clicks on a top row button and text displayed in a bottom row button after clicking on it.
As soon as all the lamp buttons are full with text, I want a submit buttom to appear.
I tried to make for and foreach for my lamp buttons and it didn't help. Plese help!
here is a code:
public partial class Game : System.Web.UI.Page
{
protected void Page_Init(object sender, EventArgs e)
{
for (int i = 0; i < 6; i++)
{
Button btnLamp = new Button();
btnLamp.ID = "btnLamp" + i.ToString();
btnLamp.Click += btnLamp_Click;
this.Panel1.Controls.Add(btnLamp);
}
LiteralControl ltBreak = new LiteralControl();
ltBreak.Text = "<br/><br/>";
Panel1.Controls.Add(ltBreak);
Panel1.DataBind();
for (int i = 0; i < 6; i++)
{
Button btn = new Button();
btn.ID = "btn" + i.ToString();
btn.Text = "btn" + i.ToString();
btn.Click += btn_Click;
this.Panel2.Controls.Add(btn);
}
Panel2.DataBind();
}
void btn_Click(object sender, EventArgs e)
{
Button clickedbutton = (Button)sender;
string btn_cliked = clickedbutton.ID;
for (int i = 0; i <5 ; i++)
{
((Button)FindControl(("btn" + i.ToString()))).BackColor = System.Drawing.Color.LightSteelBlue;
}
clickedbutton.BackColor = System.Drawing.Color.Beige;
Session["clickedbutton"] = clickedbutton;
}
void btnLamp_Click(object sender, EventArgs e)
{
Button clickedbutton = (Button)sender;
string btnLamp_cliked = clickedbutton.ID;
((Button)FindControl(((Button)Session["clickedbutton"]).ID)).Enabled = false;
for (int i = 0; i < 5; i++)
{
if (((Button)Session["clickedbutton"]).Text.ToString() == ((Button)FindControl("btnLamp" + i)).Text)
{
((Button)FindControl("btnLamp" + i)).Text = "";
}
}
clickedbutton.Text = ((Button)Session["clickedbutton"]).Text.ToString();
}
This sort of stuff is best handled client side in javascript.
Attach a handler to the onchange event of your inputs and figure out inside it if
all inputs have value. Then show your button on page (should be present but hidden - display:none).
If none of the above makes any sense i suggest to do some research on web programming. Figure out the purpose of server code (C# in your case) versus html and javascript. Then come back with questions if needed
I have added check boxes dynamically to a panel. now how can i get a alert message with "you have checked 1 or 2 or 3....". when check boxes get selected??
CheckBox[] premiumticket = new CheckBox[50];
private void Form1_Load(object sender, EventArgs e)
{
var panel1 = new Panel()
{
Size = new Size(600, 70),
Location = new Point(20, 130),
BorderStyle = BorderStyle.FixedSingle
};
for (int i = 0; i < 20; i++)
{
premiumticket[i]=new CheckBox();
premiumticket[i].Text=(i+1).ToString();
premiumticket[i].Name=(i+1).ToString();
premiumticket[i].Location=new Point(x,y);
panel1.Controls.Add(premiumticket[i]);
x = x - 55;
if (x < 55)
{
y = y + 20;
x = 550;
}
}
x = 550; y = 10;
Controls.Add(panel1);
}
Add an event-handler to each CheckBox:
public void Checkbox_CheckedChanged(Object sender, EventArgs e) {
CheckBox cb = (CheckBox)sender;
MessageBox.Show( cb.Name + " was clicked!");
}
for (int i = 0; i < 20; i++) {
premiumticket[i] = new CheckBox();
premiumticket[i].OnCheckChanged += new EventHandler( Checkbox_CheckedChange );
...
}
Dynamically Create events for Each Checkbox and put ur alert code on it
var checkBox = new CheckBox { ID = "WCCheckBox" + item.ItemID.ToString(), ItemID = item.ItemID, Checked = item.UserValue == "1", CssClass = "wounditem" };
Your implementation may be another.
Add this to your for loop:
premiumticket[i].OnCheckChanged += new EventHandler( premiumTicketChanged );
Checkbox toggled handler:
public void premiumTicketChanged (Object sender, EventArgs e)
{
int ticketCount = premiumticket.Count(c => c.Checked);
MessageBox.Show( string.Format("You have checked {0} checkboxes....", ticketCount));
}
After you add dynamically a control you can use AddHandler to manage the events of this control.
Remember set the checkbox autopostback property to true.