Change background in all forms with a button click

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I made 2 forms and Form2 has buttons for background images. How can I, when I press that button set background on all forms. Because when I did some coding :

this.BackgroundImage = new Bitmap(Properties.Resources._8_8008_by_amplifier404, new Size(800, 500));
// where _8_8008_by_amplifier404 is name of the image

it only changes background image on form which has that button but I want when I click that button to change background on all forms?!

Posted 13-Jul-13 1:50am

Keno995

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Keno995 13-Jul-13 16:48pm

It's not colour as background, it's an image like planes or games wallpaper, etc. How to do it with a bitmap as a resource

3 solutions

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User 8696850 · Answer 1 · 2013-07-13T02:06:00

Solution 2

Try to call this :

C#

CheckForm(Color.Red);

private void CheckForm(Color col )
{
    foreach(Form form in Application.OpenForms)
    {
        form.BackColor = col;
    }
}

Posted 13-Jul-13 2:06am

User 8696850

Updated 17-Jul-13 0:56am

v2

Sagar Tajpara · Answer 2 · 2013-07-13T03:21:00

default1:

C#

protected void Button1_Click(object sender, EventArgs e)
    {
        nam.Attributes["bgcolor"] ="Red";
        Session["col"] = nam.Attributes["bgcolor"];
        
    }
}

aspx:

C#

<body id="nam" runat="server">
    <form id="form1" runat="server">
    <div>        
        <asp:button id="Button1" runat="server" text="Button" onclick="Button1_Click" />
        <p>
            <asp:hyperlink id="HyperLink1" runat="server" navigateurl="~/Default2.aspx">new</asp:hyperlink>
        </p>
    </form>
</body>

default2

C#

protected void Page_Load(object sender, EventArgs e)
{
       sj.Attributes["bgcolor"] = Session["col"].ToString();
}

Naz_Firdouse · Answer 3 · 2013-07-17T01:08:00

Solution 4

set background image for all forms like this

C#

foreach (Form myform in Application.OpenForms)
{
    myform.BackgroundImage = new Bitmap(@"C:\Users\xxx\Desktop\stripe1.png");
}

Posted 17-Jul-13 1:08am

Naz_Firdouse