Decide what buttons to control which textboxes?

mossberg · December 18th, 2004, 06:09 PM

On a page I have:
<asp:textbox id="textbox1" runat="server/>
<asp:button id="button1" runat="server" text="1" onclick="Sub1"/>

<asp:textbox id="textbox2" runat="server/>
<asp:button id="button2" runat="server" text="2" onclick="Sub2"/>

<asp:textbox id="textbox3" runat="server/>
<asp:button id="button3" runat="server" text="3" onclick="Sub3"/>

When I put the marker in textbox2 or 3 and hit Enter the page assumes that I did hit button1, so it runs Sub1...!
Therefor my question is:
How can I take control of this? There must be a way!

Realising that ASP.NET only handles one server-side form-tag really irritates me...Do I have to stay that way?

planoie · December 19th, 2004, 11:35 PM

In your code-behind, you can use the button's keypress attribute to trap the textbox keypress. Then for a given condition (keypress is the enter key), you can call the appropriate button's click event:

First we'll construct the javascript with a placeholder for the button postback call. Then well add in the button postback call. Then we'll apply the javascript call to the textbox's onKeyPress client side event handler (using the attributes collection).

sKeyPress = "if(event.keyCode==13) {0}; return false;"
sKeyPress = String.Format(sKeyPress, GetPostBackEventReference(button1))
textbox1.Attributes.Item("onKeyPress") = sKeyPress

Do this for each textbox.

Colonel Angus · December 21st, 2004, 09:26 AM

I would think that you could associate the button with a sub in the codebehind using the Handles attribute.

For example,

Code:

Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
   some code
End Sub

You could do this for each button.

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mossberg · December 21st, 2004, 12:49 PM

Quote:

quote:Originally posted by planoie
In your code-behind, you can use the button's keypress attribute to trap the textbox keypress. Then for a given condition (keypress is the enter key), you can call the appropriate button's click event:

First we'll construct the javascript with a placeholder for the button postback call. Then well add in the button postback call. Then we'll apply the javascript call to the textbox's onKeyPress client side event handler (using the attributes collection).

sKeyPress = "if(event.keyCode==13) {0}; return false;"
sKeyPress = String.Format(sKeyPress, GetPostBackEventReference(button1))
textbox1.Attributes.Item("onKeyPress") = sKeyPress

Do this for each textbox.

Ok, thanks, I'll try these examples. /Moss