I can not get into the event when I click the dynamically created button
0
I am trying to make the program, with the click of the button, enter the event but I can't, can someone help me?
The "foreach" is working but it does not enter and I don't know why.
when the button is clicked it doesn't start the event but when it's clicked twice all buttons desapear
foreach (var Cat in db.Categorias) {
var id_Categoria = db.Categorias.Where(x => x.IdCategoria.Equals(Cat.IdCategoria)).FirstOrDefault();
if (id_Categoria != null && Cat.IdCategoria.Equals(Cat.IdCategoria)) {
UpdatePanel UP_btn_Cat = new UpdatePanel();
UP_btn_Cat.ID = "UP_btn_Cat_" + Cat.IdCategoria.ToString();
UP_btn_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
Plh_cat.Controls.Add(UP_btn_Cat);
Button btn_cat = new Button();
btn_cat.Text = Cat.NomeCategoria;
btn_cat.ID = "btn_cat_" + Cat.IdCategoria.ToString();
btn_cat.Click += new EventHandler(button_Click);
UP_btn_Cat.ContentTemplateContainer.Controls.Add(btn_cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "button_Click";
UP_btn_Cat.Triggers.Add(trigger);
Plh_email.Controls.Add(new LiteralControl("<div style='clear: both'></div>"));
}
}
protected void button_Click(object sender, EventArgs e) {
Button btn_cat = (Button)sender;
PlaceHolder plh_msg_cat = new PlaceHolder();
plh_msg_cat.ID = "plh_msg_cat";
UpdatePanel UP_mgs_Cat = new UpdatePanel();
UP_mgs_Cat.ID = "UP_mgs_Cat";
UP_mgs_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
div_msgs.Controls.Add(UP_mgs_Cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "Click";
UP_mgs_Cat.Triggers.Add(trigger);
var id = btn_cat.ID;
Plh_cat.Controls.Add(new LiteralControl("<p class='p_cliente'>123" + id + "</p>"));
}
c# html asp.net events foreach
edited Nov 23 '18 at 12:39
J. Doe
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
add a comment |
0
I am trying to make the program, with the click of the button, enter the event but I can't, can someone help me?
The "foreach" is working but it does not enter and I don't know why.
when the button is clicked it doesn't start the event but when it's clicked twice all buttons desapear
foreach (var Cat in db.Categorias) {
var id_Categoria = db.Categorias.Where(x => x.IdCategoria.Equals(Cat.IdCategoria)).FirstOrDefault();
if (id_Categoria != null && Cat.IdCategoria.Equals(Cat.IdCategoria)) {
UpdatePanel UP_btn_Cat = new UpdatePanel();
UP_btn_Cat.ID = "UP_btn_Cat_" + Cat.IdCategoria.ToString();
UP_btn_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
Plh_cat.Controls.Add(UP_btn_Cat);
Button btn_cat = new Button();
btn_cat.Text = Cat.NomeCategoria;
btn_cat.ID = "btn_cat_" + Cat.IdCategoria.ToString();
btn_cat.Click += new EventHandler(button_Click);
UP_btn_Cat.ContentTemplateContainer.Controls.Add(btn_cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "button_Click";
UP_btn_Cat.Triggers.Add(trigger);
Plh_email.Controls.Add(new LiteralControl("<div style='clear: both'></div>"));
}
}
protected void button_Click(object sender, EventArgs e) {
Button btn_cat = (Button)sender;
PlaceHolder plh_msg_cat = new PlaceHolder();
plh_msg_cat.ID = "plh_msg_cat";
UpdatePanel UP_mgs_Cat = new UpdatePanel();
UP_mgs_Cat.ID = "UP_mgs_Cat";
UP_mgs_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
div_msgs.Controls.Add(UP_mgs_Cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "Click";
UP_mgs_Cat.Triggers.Add(trigger);
var id = btn_cat.ID;
Plh_cat.Controls.Add(new LiteralControl("<p class='p_cliente'>123" + id + "</p>"));
}
c# html asp.net events foreach
edited Nov 23 '18 at 12:39
J. Doe
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31
add a comment |
0
0
0
I am trying to make the program, with the click of the button, enter the event but I can't, can someone help me?
The "foreach" is working but it does not enter and I don't know why.
when the button is clicked it doesn't start the event but when it's clicked twice all buttons desapear
foreach (var Cat in db.Categorias) {
var id_Categoria = db.Categorias.Where(x => x.IdCategoria.Equals(Cat.IdCategoria)).FirstOrDefault();
if (id_Categoria != null && Cat.IdCategoria.Equals(Cat.IdCategoria)) {
UpdatePanel UP_btn_Cat = new UpdatePanel();
UP_btn_Cat.ID = "UP_btn_Cat_" + Cat.IdCategoria.ToString();
UP_btn_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
Plh_cat.Controls.Add(UP_btn_Cat);
Button btn_cat = new Button();
btn_cat.Text = Cat.NomeCategoria;
btn_cat.ID = "btn_cat_" + Cat.IdCategoria.ToString();
btn_cat.Click += new EventHandler(button_Click);
UP_btn_Cat.ContentTemplateContainer.Controls.Add(btn_cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "button_Click";
UP_btn_Cat.Triggers.Add(trigger);
Plh_email.Controls.Add(new LiteralControl("<div style='clear: both'></div>"));
}
}
protected void button_Click(object sender, EventArgs e) {
Button btn_cat = (Button)sender;
PlaceHolder plh_msg_cat = new PlaceHolder();
plh_msg_cat.ID = "plh_msg_cat";
UpdatePanel UP_mgs_Cat = new UpdatePanel();
UP_mgs_Cat.ID = "UP_mgs_Cat";
UP_mgs_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
div_msgs.Controls.Add(UP_mgs_Cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "Click";
UP_mgs_Cat.Triggers.Add(trigger);
var id = btn_cat.ID;
Plh_cat.Controls.Add(new LiteralControl("<p class='p_cliente'>123" + id + "</p>"));
}
c# html asp.net events foreach
edited Nov 23 '18 at 12:39
J. Doe
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
I am trying to make the program, with the click of the button, enter the event but I can't, can someone help me?
The "foreach" is working but it does not enter and I don't know why.
when the button is clicked it doesn't start the event but when it's clicked twice all buttons desapear
foreach (var Cat in db.Categorias) {
var id_Categoria = db.Categorias.Where(x => x.IdCategoria.Equals(Cat.IdCategoria)).FirstOrDefault();
if (id_Categoria != null && Cat.IdCategoria.Equals(Cat.IdCategoria)) {
UpdatePanel UP_btn_Cat = new UpdatePanel();
UP_btn_Cat.ID = "UP_btn_Cat_" + Cat.IdCategoria.ToString();
UP_btn_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
Plh_cat.Controls.Add(UP_btn_Cat);
Button btn_cat = new Button();
btn_cat.Text = Cat.NomeCategoria;
btn_cat.ID = "btn_cat_" + Cat.IdCategoria.ToString();
btn_cat.Click += new EventHandler(button_Click);
UP_btn_Cat.ContentTemplateContainer.Controls.Add(btn_cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "button_Click";
UP_btn_Cat.Triggers.Add(trigger);
Plh_email.Controls.Add(new LiteralControl("<div style='clear: both'></div>"));
}
}
protected void button_Click(object sender, EventArgs e) {
Button btn_cat = (Button)sender;
PlaceHolder plh_msg_cat = new PlaceHolder();
plh_msg_cat.ID = "plh_msg_cat";
UpdatePanel UP_mgs_Cat = new UpdatePanel();
UP_mgs_Cat.ID = "UP_mgs_Cat";
UP_mgs_Cat.UpdateMode = UpdatePanelUpdateMode.Conditional;
div_msgs.Controls.Add(UP_mgs_Cat);
AsyncPostBackTrigger trigger = new AsyncPostBackTrigger();
trigger.ControlID = btn_cat.ID;
trigger.EventName = "Click";
UP_mgs_Cat.Triggers.Add(trigger);
var id = btn_cat.ID;
Plh_cat.Controls.Add(new LiteralControl("<p class='p_cliente'>123" + id + "</p>"));
}
c# html asp.net events foreach
c# html asp.net events foreach
edited Nov 23 '18 at 12:39
J. Doe
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
edited Nov 23 '18 at 12:39
J. Doe
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
edited Nov 23 '18 at 12:39
J. Doe
797
edited Nov 23 '18 at 12:39
J. Doe
797
edited Nov 23 '18 at 12:39
J. Doe
797
797
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
asked Nov 23 '18 at 11:47
Leadnnd PereiraLeadnnd Pereira
14
14
is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31
add a comment |
is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31
is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31
add a comment |
1 Answer
1
active
oldest
votes
0
I'm not sure how everything is created but I would suggest you read up on the Page Life Cycle. It states that all controls must be created during the PreInit event. Use the Init to initialize control properties.
If the controls are created only once during !IsPostBack or in the wrong event, then the Click event of the button will not fire.
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
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oldest
votes
active
oldest
votes
0
I'm not sure how everything is created but I would suggest you read up on the Page Life Cycle. It states that all controls must be created during the PreInit event. Use the Init to initialize control properties.
If the controls are created only once during !IsPostBack or in the wrong event, then the Click event of the button will not fire.
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
add a comment |
0
I'm not sure how everything is created but I would suggest you read up on the Page Life Cycle. It states that all controls must be created during the PreInit event. Use the Init to initialize control properties.
If the controls are created only once during !IsPostBack or in the wrong event, then the Click event of the button will not fire.
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
add a comment |
0
0
0
I'm not sure how everything is created but I would suggest you read up on the Page Life Cycle. It states that all controls must be created during the PreInit event. Use the Init to initialize control properties.
If the controls are created only once during !IsPostBack or in the wrong event, then the Click event of the button will not fire.
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
I'm not sure how everything is created but I would suggest you read up on the Page Life Cycle. It states that all controls must be created during the PreInit event. Use the Init to initialize control properties.
If the controls are created only once during !IsPostBack or in the wrong event, then the Click event of the button will not fire.
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
answered Nov 23 '18 at 13:46
the_lotusthe_lotus
10.1k12246
10.1k12246
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
add a comment |
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
the button is working fine but the event doesn't start.
– Leadnnd Pereira
Nov 23 '18 at 14:34
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
@LeadnndPereira if the event doesn't get fired, then the button doesn't work...
– the_lotus
Nov 23 '18 at 15:00
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
You help me, please?
– Leadnnd Pereira
Nov 23 '18 at 15:12
add a comment |
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is your code working ? aren't you getting error in the foor loop ?
– Waleed Naveed
Nov 23 '18 at 11:52
@WaleedNaveed my code works fine!
– Leadnnd Pereira
Nov 23 '18 at 14:31