单击按钮更改所有表单中的背景 [英] Change background in all forms with a button click
问题描述
我制作了两个表格，Form2有背景图像按钮。当我按下所有表格上的按钮设置背景时，我该怎么办？因为我做了一些编码：
this.BackgroundImage = new Bitmap（Properties.Resources._8_8008_by_amplifier404，new Size（800,500））;
//其中_8_8008_by_amplifier404是图像的名称
它只更改具有该按钮的表单上的背景图像但我想在单击该按钮更改背景时在所有表格上？！
试着这样称呼：
CheckForm（Color.Red）;
private void CheckForm（Color col）
{
foreach （表格形式 in Application.OpenForms）
{
表格。 BackColor = col;
}
}
default1：
< pre lang =c＃> protected void Button1_Click（ object sender，EventArgs e）
{
nam.Attributes [ bgcolor] = 红色;
会话[ col] = nam.Attributes [ bgcolor];
}
}
aspx：
< body id = nam runat = server >
< form id = form1 runat = server >
< div>
< asp：button id = Button1 runat = server text = 按钮 onclick = Button1_Click />
< p>
< asp：hyperlink id = HyperLink1 runat = server navigateurl = 〜/ Default2.aspx> new < / asp：hyperlink < span class =code-keyword>>
< / p >
< / form >
< / 正文 >
default2
受保护 void Page_Load（ object sender，EventArgs e）
{
sj.Attributes [ bgcolor] =会话[ col]。ToString（）;
}
设置所有表格的背景图片
foreach （表单myform in Application.OpenForms）
{
myform.BackgroundImage = new 位图（ @ C：\ Users \ xxxx \ Desktop\stripe1.png）;
}
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?!
Try to call this :
CheckForm(Color.Red); private void CheckForm(Color col ) { foreach(Form form in Application.OpenForms) { form.BackColor = col; } }
default1:
protected void Button1_Click(object sender, EventArgs e) { nam.Attributes["bgcolor"] ="Red"; Session["col"] = nam.Attributes["bgcolor"]; } }
aspx:
<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
protected void Page_Load(object sender, EventArgs e) { sj.Attributes["bgcolor"] = Session["col"].ToString(); }
set background image for all forms like this
foreach (Form myform in Application.OpenForms) { myform.BackgroundImage = new Bitmap(@"C:\Users\xxx\Desktop\stripe1.png"); }
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