how to prevent postback event for button in a grid

[william]

Hi,
I have a datagrid, inside there is a templete item, it's button. I want to
do some thing when user click the button, but do not want the postback event
happens. How can I do it?
Thanks.

william

[IPGrunt]

"=?Utf-8?B?d2lsbGlhbQ= =?=" <wi*****@discus sions.microsoft .com> confessed in
news:04******** *************** ***********@mic rosoft.com:

Hi,
I have a datagrid, inside there is a templete item, it's button. I want to
do some thing when user click the button, but do not want the postback event happens. How can I do it?
Thanks.

william

You gotta do something. Maybe you just want to use a straight HTML Control
and hook it's onclick event property to client-side javascript?

--

[Jeppe Dige Jespersen]

> I have a datagrid, inside there is a templete item, it's button. I want to

do some thing when user click the button, but do not want the postback event happens. How can I do it?

Well, since an ASP:Button is a server side control, there is no non-postback
functionality on it. If you click it, it will postback.

So you're limited to client side code. Only button control to handle
clientside code and not postback, is an HTML Button, which you'll find in
the HTML tab of your toolbox. Like this:

<script language="javas cript">
function myJavaScriptFun ction() {
//do some stuff here
}
</script>

.....and then in your HTML body somewhere....:

<input type="Button" value="Click me!" onclick="myJava ScriptFunction( );">

That help you any?
Jeppe Jespersen
jdj-jdj.dk

[Jos]

"william" <wi*****@discus sions.microsoft .com> wrote in message
news:04******** *************** ***********@mic rosoft.com...

Hi,
I have a datagrid, inside there is a templete item, it's button. I want to
do some thing when user click the button, but do not want the postback event happens. How can I do it?

Make it a client-side button (no runat="server") .
<input type="button" onclick="myHand ler();" >

Jos

[Jeppe Dige Jespersen]

Hey, at least we can all agree on how to do it. :-)))

Jeppe

[william]

Hi All,
Thanks.
I will try.

william

"Jeppe Dige Jespersen" wrote:

Hey, at least we can all agree on how to do it. :-)))

Jeppe

[william]

Hi Jeppe,
I tried to used HTML button, it does not fire postback event. But how can I
do some process on the datagrid from javascript function? Actually there is
textbox in the datagrid, when the button is clicked, I want to update the
textbox. Could you show me a sample?
Thanks.

william
"Jeppe Dige Jespersen" wrote:

Hey, at least we can all agree on how to do it. :-)))

Jeppe

[Jeppe Dige Jespersen]

I tried to used HTML button, it does not fire postback event. But how can I do some process on the datagrid from javascript function? Actually there is textbox in the datagrid, when the button is clicked, I want to update the
textbox. Could you show me a sample?

Hmmm....

In your first post, I understood that you didn't want the postback event.
Could you post the html from your aspx page, along with a description of the
exact functionality of your page. Will try to help, but no guarantees... :-)

Jeppe

[william]

Hi Jeffe,
Thanks.
Here is the part of datagrid:(a little bit big)
<asp:DataGrid id="gdMemPortfo lio" runat="server" Height="64px"
Width="1048px" AutoGenerateCol umns="False">
<Columns>
<asp:BoundColum n Visible="False" DataField="ast_ key"></asp:BoundColumn >
<asp:BoundColum n DataField="seg_ label" headerText="Seg ment"></asp:BoundColumn >
<asp:BoundColum n DataField="mana ger" HeaderText="Man ager"></asp:BoundColumn >
<asp:BoundColum n DataField="asse t" HeaderText="Ass et"></asp:BoundColumn >
<asp:BoundColum n DataField="tota l_units" HeaderText="Cur rent
Units/Shares"></asp:BoundColumn >
<asp:BoundColum n DataField="vest ed_units" HeaderText="Ves ted
Units/Shares"></asp:BoundColumn >
<asp:BoundColum n DataField="mark et_value" HeaderText="Cur rent Vested Market
Value"></asp:BoundColumn >
<asp:BoundColum n DataField="pend ing_sell_units" HeaderText="Pen ding Sells
Units/Shares"></asp:BoundColumn >
<asp:BoundColum n DataField="pend ing_buy_amount" HeaderText="Pen ding Buys
Amount"></asp:BoundColumn >
<asp:BoundColum n DataField="fee_ units" HeaderText="Fee Charged
Units/Shares"></asp:BoundColumn >
<asp:BoundColum n DataField="ava_ units" HeaderText="Ava ilable
Units/Shares"></asp:BoundColumn >
<asp:BoundColum n DataField="ava_ amount" HeaderText="Ava ilable
Amount"></asp:BoundColumn >
<asp:TemplateCo lumn HeaderText="Uni ts/Shares">
<ItemTemplate >
<asp:TextBox OnTextChanged=" RowChanged" id=txtUnitsSell runat="server"
Width="100px" Text='<%# DataBinder.Eval (Container, "DataItem.trx_u nits") %>'>
</asp:TextBox>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:TemplateCo lumn HeaderText="Amo unt">
<ItemTemplate >
<asp:TextBox OnTextChanged=" RowChanged" id=txtAmountSel l runat="server"
Width="100px" Text='<%# DataBinder.Eval (Container, "DataItem.trx_a mount") %>'>
</asp:TextBox>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:TemplateCo lumn HeaderText="Per centage">
<ItemTemplate >
<asp:TextBox OnTextChanged=" RowChanged" id=txtPctSell runat="server"
Width="100px" Text='<%# DataBinder.Eval (Container, "DataItem.trx_p ct") %>'>
</asp:TextBox>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:TemplateCo lumn HeaderText="All ">
<ItemTemplate >
<asp:Button id="btnAllSell " runat="server" Width="33px"
Text="All"></asp:Button>
</ItemTemplate>
</asp:TemplateCol umn>
<asp:TemplateCo lumn HeaderText="Spe cific Cell">
<ItemTemplate >
<asp:CheckBox id=chbcellSell runat="server" Width="10px" Height="8px"
Enabled='<%# DataBinder.Eval (Container, "DataItem.g ia") %>'>
</asp:CheckBox>
</ItemTemplate>
</asp:TemplateCol umn>
</Columns>
</asp:DataGrid></P>

what I want to do is when btnAllSell button is clicked, get data from
BoundColumn DataField="ava_ units", fill it into txtUnitsSell textbox.

william

"Jeppe Dige Jespersen" wrote:

I tried to used HTML button, it does not fire postback event. But how can

I

do some process on the datagrid from javascript function? Actually there

is

textbox in the datagrid, when the button is clicked, I want to update the
textbox. Could you show me a sample?

Hmmm....

In your first post, I understood that you didn't want the postback event.
Could you post the html from your aspx page, along with a description of the
exact functionality of your page. Will try to help, but no guarantees... :-)

Jeppe

[Jeppe Dige Jespersen]

> <asp:BoundColum n DataField="ava_ units" HeaderText="Ava ilable

Units/Shares"></asp:BoundColumn >

what I want to do is when btnAllSell button is clicked, get data from
BoundColumn DataField="ava_ units", fill it into txtUnitsSell textbox.

Me thinks me sees the light. :-)

First of all I would change the btnAllSell to a buttoncolumn, and set the
columns commandName to "ItemComman d". Also, for starters, set the buttonType
on the column to "LinkButton ". Somehting like this:
<asp:ButtonColu mn ButtonType="Lin kButton" Text="Sell All"
CommandName="It emCommand" />

Then, in the Datagrids ItemCommand event, i would do something like the
following. Note that my column names are different than yours, so don't
copy-paste too much :-) Anyways, like this:
CType(e.Item.Fi ndControl("txtC opiedCompanyNam e"), TextBox).Text =
CType(e.Item.Fi ndControl("lblC ompanyName"), Label).Text

That should move the value. However, to retain copied values for more than
one field through multiple "copy" clicks, you would probably have to push
the copied field into your dataset or database. Try it out. Hope it helps
you out....

Jeppe Jespersen