passing data on the cleint side

[Phil Barber]

I have dropdown list I want to let the user pick an item in the list and add
it to text box.
It works all fine as long as I set the Autopostback on the dropdown list.
the only problems I have is the speed of page as it is being redrawn on
every selection.
my question is there a way to move the selection to the text box on the
client side without the trip to the server?

this is the code behind the dropdiwn list:
protected void CmbClaimPrefix_SelectedIndexChanged(object sender,EventArgs
e)

{


if (TxtCvgNum.Text=="ALL")

TxtCvgNum.Text=CmbCvgNum.SelectedValue;

else

TxtCvgNum.Text+=","+CmbCvgNum.SelectedValue;

}

 

[Alessandro Zifiglio]

hi Phil,
you can try to do it exclusively in clientside js, this way you wont need to
postback un-necessarily.
In the following code i pasted below, replace 'TextBox1' with the id of your
textbox.
Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
}

 

[Phil Barber]

first I would like to say thanks that does work. I do still have one problem
when I examine the text box in code the values that were added by the
dropdown list are not in the text property of the text box, even though they
show on the screen just fine!

any ideas
thanks
phil

hi Phil,
you can try to do it exclusively in clientside js, this way you wont need
to postback un-necessarily.
In the following code i pasted below, replace 'TextBox1' with the id of
your textbox.
Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
}

I have dropdown list I want to let the user pick an item in the list and
add it to text box.
It works all fine as long as I set the Autopostback on the dropdown list.
the only problems I have is the speed of page as it is being redrawn on
every selection.
my question is there a way to move the selection to the text box on the
client side without the trip to the server?

this is the code behind the dropdiwn list:
protected void CmbClaimPrefix_SelectedIndexChanged(object
sender,EventArgs e)

{


if (TxtCvgNum.Text=="ALL")

TxtCvgNum.Text=CmbCvgNum.SelectedValue;

else

TxtCvgNum.Text+=","+CmbCvgNum.SelectedValue;

}

 

[Alessandro Zifiglio]

hi phil, this test seems to work well. In page_load and button click event,
i get the value supplied by the dropdownlist, so i dont know what you did to
make it not work for you :

Regards,
Alessandro Zifiglio
http://www.AsyncUI.net


code behind :
------------------------
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
else
{
Response.Write("<br /> page_load fired, value of textbox is : "
+ TextBox1.Text);
}
}

protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("<br /> button click fired, value of textbox is : " +
TextBox1.Text);
}

Declarative code :
------------------------


<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<aspropDownList ID="DropDownList1" runat="server">
<asp:ListItem>a</asp:ListItem>
<asp:ListItem>b</asp:ListItem>
<asp:ListItem>c</asp:ListItem>
<asp:ListItem>d</asp:ListItem>
</aspropDownList>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="Button" /></div>
</form>

first I would like to say thanks that does work. I do still have one
problem
when I examine the text box in code the values that were added by the
dropdown list are not in the text property of the text box, even though
they show on the screen just fine!

any ideas
thanks
phil

hi Phil,
you can try to do it exclusively in clientside js, this way you wont need
to postback un-necessarily.
In the following code i pasted below, replace 'TextBox1' with the id of
your textbox.
Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
}

I have dropdown list I want to let the user pick an item in the list and
add it to text box.
It works all fine as long as I set the Autopostback on the dropdown
list.
the only problems I have is the speed of page as it is being redrawn on
every selection.
my question is there a way to move the selection to the text box on the
client side without the trip to the server?

this is the code behind the dropdiwn list:
protected void CmbClaimPrefix_SelectedIndexChanged(object
sender,EventArgs e)

{


if (TxtCvgNum.Text=="ALL")

TxtCvgNum.Text=CmbCvgNum.SelectedValue;

else

TxtCvgNum.Text+=","+CmbCvgNum.SelectedValue;

}

 

[Phil Barber]

I got it, i was using a textbox VS2005 control when I wsitch to the HTML
input control it all worked ok.
thanks again
phil

hi phil, this test seems to work well. In page_load and button click
event, i get the value supplied by the dropdownlist, so i dont know what
you did to make it not work for you :

Regards,
Alessandro Zifiglio
http://www.AsyncUI.net


code behind :
------------------------
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
else
{
Response.Write("<br /> page_load fired, value of textbox is : "
+ TextBox1.Text);
}
}

protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("<br /> button click fired, value of textbox is : "
+ TextBox1.Text);
}

Declarative code :
------------------------


<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<aspropDownList ID="DropDownList1" runat="server">
<asp:ListItem>a</asp:ListItem>
<asp:ListItem>b</asp:ListItem>
<asp:ListItem>c</asp:ListItem>
<asp:ListItem>d</asp:ListItem>
</aspropDownList>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="Button" /></div>
</form>

first I would like to say thanks that does work. I do still have one
problem
when I examine the text box in code the values that were added by the
dropdown list are not in the text property of the text box, even though
they show on the screen just fine!

any ideas
thanks
phil

hi Phil,
you can try to do it exclusively in clientside js, this way you wont
need to postback un-necessarily.
In the following code i pasted below, replace 'TextBox1' with the id of
your textbox.
Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
}


"Phil Barber" <[email protected]> ha scritto nel messaggio
I have dropdown list I want to let the user pick an item in the list and
add it to text box.
It works all fine as long as I set the Autopostback on the dropdown
list.
the only problems I have is the speed of page as it is being redrawn on
every selection.
my question is there a way to move the selection to the text box on the
client side without the trip to the server?

this is the code behind the dropdiwn list:
protected void CmbClaimPrefix_SelectedIndexChanged(object
sender,EventArgs e)

{


if (TxtCvgNum.Text=="ALL")

TxtCvgNum.Text=CmbCvgNum.SelectedValue;

else

TxtCvgNum.Text+=","+CmbCvgNum.SelectedValue;

}

 

[Alessandro Zifiglio]

you are welcome phil. By the way, you mean the opposite. Because it works
for me on an asp.net textbox control

Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

I got it, i was using a textbox VS2005 control when I wsitch to the HTML
input control it all worked ok.
thanks again
phil

hi phil, this test seems to work well. In page_load and button click
event, i get the value supplied by the dropdownlist, so i dont know what
you did to make it not work for you :

Regards,
Alessandro Zifiglio
http://www.AsyncUI.net


code behind :
------------------------
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
else
{
Response.Write("<br /> page_load fired, value of textbox is :
" + TextBox1.Text);
}
}

protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("<br /> button click fired, value of textbox is : "
+ TextBox1.Text);
}

Declarative code :
------------------------


<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<aspropDownList ID="DropDownList1" runat="server">
<asp:ListItem>a</asp:ListItem>
<asp:ListItem>b</asp:ListItem>
<asp:ListItem>c</asp:ListItem>
<asp:ListItem>d</asp:ListItem>
</aspropDownList>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click"
Text="Button" /></div>
</form>

first I would like to say thanks that does work. I do still have one
problem
when I examine the text box in code the values that were added by the
dropdown list are not in the text property of the text box, even though
they show on the screen just fine!

any ideas
thanks
phil

in message hi Phil,
you can try to do it exclusively in clientside js, this way you wont
need to postback un-necessarily.
In the following code i pasted below, replace 'TextBox1' with the id of
your textbox.
Regards,
Alessandro Zifiglio
http://www.AsyncUI.net

protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
this.DropDownList1.Attributes.Add("onchange",
"document.getElementById('TextBox1').value =
this.options[this.selectedIndex].value;");
}
}


"Phil Barber" <[email protected]> ha scritto nel messaggio
I have dropdown list I want to let the user pick an item in the list
and add it to text box.
It works all fine as long as I set the Autopostback on the dropdown
list.
the only problems I have is the speed of page as it is being redrawn
on every selection.
my question is there a way to move the selection to the text box on
the client side without the trip to the server?

this is the code behind the dropdiwn list:
protected void CmbClaimPrefix_SelectedIndexChanged(object
sender,EventArgs e)

{


if (TxtCvgNum.Text=="ALL")

TxtCvgNum.Text=CmbCvgNum.SelectedValue;

else

TxtCvgNum.Text+=","+CmbCvgNum.SelectedValue;

}