在ASP.net中，我想在文本框中设置一些值，然后在服务器端获取该值

Question

It is my Code. And i have to use the plug in.

This is the plug-in website: http://jscolor.com/download/

It just a color picker plug-in.

MyCode:
<div class="FormItem">
<asp:Label ID="lblColor" runat="server">Color : </asp:Label>
<asp:TextBox ID="rColor" runat="server" ReadOnly="true"></asp:TextBox>
<input ID="txtColor" class="jscolor {onFineChange:'update(this)'}"readonly="readonly" ></input>

This is the Function which update the color and text of the textBox.

function update(jscolor) {
    document.getElementById('<%=rColor.ClientID%>').style.backgroundColor = '#' + jscolor;
    document.getElementById('<%=rColor.ClientID%>').value = '#' + jscolor;   
}

How can i get the value of the TextBox in the server site.

I have tried to get rColor.Text in server site. It show me nothing inside of the TextBox(rColor).

This is my Server site Get value of TextBox code:

 Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "alert('" + rColor.Text + "');", true);

 project.Color = rColor.Text;

This still show the color which is Page_Load function load the value from database.

Answer 1

Problem is because of setting the textbox as readonly.

Refer this issue textbox value change not being reflected in code behind c#