CODEWITHSUNDEEP
c#asp.net
Sanjay Maharjan
Sanjay Maharjan

Reputation: 671

setting attributes or css of button in code behind in aspx

here is my aspx code for buttons

<div id="navigationButtons">
                <asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" CssClass="button submit" Enabled="true" />   
                <asp:Button ID="btnNext" name="btnNext" Text="NEXT" ToolTip="Next" runat="server" CssClass="button next" TabIndex="0" OnClick="btnNext_Click" Enabled="false"/>
                <asp:Button ID="btnPrev" Text="PREV" ToolTip="Previous" runat="server" CssClass="button prev" TabIndex="2" OnClick="btnPrev_Click" Enabled="true"/>
                <asp:Button ID="btnExit" Text="EXIT" ToolTip="Exit" runat="server" CssClass="button exit" TabIndex="3" OnClick="btnExit_Click" />
        </div>

I am unable to change the attributes from code behind so I browsed for the solution and some blogs suggested using following code in the code behind.

((System.Web.UI.HtmlControls.HtmlElement)Page.Form.FindControl("btnNext")).Style.Add("visible", "false");

I have already tried btnNext.Enabled=false; it is not working. but when I use it there is null exception error in the code. I don't know how to fix this in the above code behind. Any solution is appreciated. thanks.

Upvotes: 0

Views: 2084

Answers (2)

Tadit Dash
Tadit Dash

Reputation: 305

I just used the aspx code which you have provided. Note that I don't have the cssClass specified for the buttons.

Now on Submit Button Click Event, I wrote the following code.

btnNext.Visible = false;

And it disables the Button. So, some other factor is creating problems for you.

First of all, try this on a new page without adding any css files. It will work. Then try adding that css files or classes and check if they are creating problems or not.

Upvotes: 1

Andi Krusch
Andi Krusch

Reputation: 1383

You can access the button with it's ID, so you can do something like this:

btnNext.Visible = false;

Have you already tried this?

Upvotes: 1

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