Implementing datatriggers with controltemplates in textbox

Question

0.00/5 (No votes)

See more:

I'm new to WPF....I have tried implementing controltemplate and datatriggers both for textbox..I want to change the background color of the textbox when the value entered in that is not "18" through datatriggers..(i want the controlproperty for the textbox to work as it is)how can i achieve it.... the Xaml code written is as follows:

HTML

 <textbox x:uid="txtagevals" x:name="txtAge" height="25" width="80" removed="Wheat" borderthickness="1" borderbrush="Black" xmlns:x="#unknown">
        <textbox.template>
            <controltemplate x:uid="txtagevals" targettype="{x:Type TextBox}">
                <border removed="{TemplateBinding Background}">
                    BorderBrush="Black" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="5">
                      <scrollviewer x:name="PART_ContentHost" />
                </border>
            <controltemplate.triggers>
                <datatrigger binding="{Binding Age}" value="18">
                    <setter targetname="" property="Text" value="Green" />
                </datatrigger>
            </controltemplate.triggers>
        </controltemplate>
    </textbox.template>
</textbox>

can anybody please help me...Thank you..

Posted 22-Aug-11 19:37pm

somasekhar_37

Updated 22-Aug-11 19:38pm

walterhevedeich

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Simon Bang Terkildsen · Accepted Answer · 2011-08-22T19:50:00

Solution 1

When you use a ControlTemplate you're going to change the look of the control, you can use Blend to get the original so you can have the exact same. But in you case using a ControlTemplate is overkill just use a Setter to set the background color to the color for when Text is not "18" and then make a trigger on the Style to change the Background to White when it is "18".

E.g.

HTML

<Style TargetType="{x:Type TextBox}">
    <Setter Property="Background" Value="Red"/>
    <Style.Triggers>
        <Trigger Property="Text" Value="18">
            <Setter Property="Background" Value="White"/>
        </Trigger>
    </Style.Triggers>
</Style>

Posted 22-Aug-11 19:50pm

Simon Bang Terkildsen

Comments

somasekhar_37 23-Aug-11 2:17am

Thank you..that worked for the "textbox" background property changed..but when i click button with changed value in the textbox to bind the value in the gridview ... the old value of the textbox is binding again in the gridview its not taking the changed value in the textbox.. can you please help me how to bind the changed textbox value to the gridview..

somasekhar_37 23-Aug-11 2:21am

not only the above... the gridview is not at all getting bind with the value=18 from the textbox..please tell me how to resolve it..thank you

Simon Bang Terkildsen 23-Aug-11 2:24am

I'm not sure I understand correctly, but if I do then <TextBox Text="{Binding Age}" .../> should do the trick

somasekhar_37 23-Aug-11 2:46am

i have tried it..it does not reslove the thing..i mean when i try to bind the gridview at first with value=18 its taking as "0"..else the gridview is taking the previous value binded to it from textbox..
..In my scenario the "textbox" is not placed inside the gridview or gridview structure..am trying to bind the values entered in the textbox(placed in a tabcontrol-tab1) to the gridview in the tabcontrol(placed in another tab-tab2)...i hope you get my context..