如何更改文本框的前景色和背景色？颜色是由用户选择的？ [英] how to change a forecolor and backcolor of textbox? color are selected by the user?

问题描述

大家好，

i我正在开发一个网页，其中包含一个用户选项，他们为他们提供的文字改变了前色和背景色？，现在我正在使用颜色选择器来选择一种颜色，然后我如何将所选颜色分配给他们在网页上输入的文字。



以下颜色挑选代码：

< asp：TextBox ID =txt_forerunat =serverontextchanged =txt_fore_TextChanged>< / asp：TextBox> 
< asp：ColorPickerExtender ID =ColorPickerExtender1runat =serverTargetControlID =txt_foreOnClientColorSelectionChanged =colorChangedSampleControlID =txt_sfore> 
< / asp：ColorPickerExtender> 

现在我正在努力改变用户信息的文本框，并以同样的方式更改文本框的bgcolor？

如何？

解决方案

在colorChanged javascript方法中你可以使用

文件.getElementById（''txt''）。style.background =''＃FF0000''; //将颜色代码放在这里
 document.getElementById（''txt''）。style.color =''＃00FF00''; //将颜色代码放在这里

或者如果你使用的是jquery

例如

（''＃txt''）。attr（''style''，''color：red; background：green;''）;

 txt_usertxt.ForeColor = System.Drawing.ColorTranslator.FromHtml（ ＃ + txt_fore.Text）; 
 txt_usertxt.BackColor = System.Drawing.ColorTranslator.FromHtml（ ＃ + txt_back。文本）; 

hi everyone,
i am developing a web page that contain a option for user, who change fore color and background color for the text they are providing ?, now i am using a color picker to choose a color, then how i assign selected color to text of they typing in the webpage.

below code for color picking:

<asp:TextBox ID="txt_fore" runat="server" ontextchanged="txt_fore_TextChanged"></asp:TextBox>
                <asp:ColorPickerExtender ID="ColorPickerExtender1" runat="server" TargetControlID="txt_fore" OnClientColorSelectionChanged="colorChanged" SampleControlID="txt_sfore">
                </asp:ColorPickerExtender>

now i am struggle for change forecolor the textbox of user information, and also change bgcolor of textbox in the same way?
how?

解决方案

In the colorChanged javascript method you can use

document.getElementById(''txt'').style.background = ''#FF0000''; // put color code in here
document.getElementById(''txt'').style.color = ''#00FF00''; // put color code in here

or if you are using jquery

e.g.

(''#txt'').attr(''style'', ''color:red;background:green;'');

txt_usertxt.ForeColor = System.Drawing.ColorTranslator.FromHtml("#" + txt_fore.Text);
        txt_usertxt.BackColor = System.Drawing.ColorTranslator.FromHtml("#" + txt_back.Text);

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