从C＃Asp.net后面的代码设置输入文本字段的值

Question

我正在尝试从C＃背后的代码设置html输入字段文本值。 这些输入创建的方式是通过Java脚本循环。 因此，我在服务器上添加运行没有太多运气，也没有通过<％=％>分配值

这是我的剧本

var mytable = "<table class=\"Inside\"  >";
var z = 0;
var value = 0;
for (var i = 1; i <= 3; i++) {
mytable += "<tr>";

for (var C1 = 1; C1 <= 3; C1++) {
    mytable += "<td>";

    mytable += "<table class=\"inside\"  >";
    for (var C2 = 1; C2 <= 3; C2++) {
        mytable += "<tr>";

        for (var j = 1; j <= 3; j++) {
            z++;
            //value = z.toString();
            //if (value % 3 != 0)  value= ;

            mytable += "<td> <input id=" + i + "x" + j + " name=" + z + "  
type=\"text\"  maxlength=\"1\" oninput=\"this.value=this.value.replace(/[^0-
9]/g,'');\"  value= " +z+ " runat=\"server\" /> </td>";


        }




        mytable += "</tr>";
    }


    mytable += "</tr></table>"; mytable += "</td>";}



mytable += "</tr>";
}


mytable += "</tr></table>";

$(document).ready(function () {
$("#myTable").append(mytable);


})

我正在尝试从C＃访问输入，例如

protected void Button2_Click(object sender, EventArgs e)
    {

1x2.value="1";

}

Answer 1

您只能使用JavaScript创建HTML控件。 如果希望将一些数据发送到服务器，则可以使用JavaScript获取所需的值并将其分配给ASP控件（例如HiddenField），然后在服务器端访问其值。

 var mytable = "<table class=\\"Inside\\" >"; var z = 0; var value = 0; for (var i = 1; i <= 3; i++) { mytable += "<tr>"; for (var C1 = 1; C1 <= 3; C1++) { mytable += "<td>"; mytable += "<table class=\\"inside\\" >"; for (var C2 = 1; C2 <= 3; C2++) { mytable += "<tr>"; for (var j = 1; j <= 3; j++) { z++; //value = z.toString(); //if (value % 3 != 0) value= ; mytable += "<td> <input id=" + i + "x" + j + " name=" + z + " type=\\"text\\" maxlength=\\"1\\" oninput=\\"this.value=this.value.replace(/[^0-9]/g,'');\\" value= " + z + " /> </td>"; } mytable += "</tr>"; } mytable += "</tr></table>"; mytable += "</td>"; } mytable += "</tr>"; } mytable += "</tr></table>"; function CreateTable() {} $(document).ready(function() { $("#myTable").append(mytable); }) function getInputValue(element) { $("#<%= HiddenField1.ClientID %>").val($("#1x2").val()); } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="myTable"></div> 

<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <br />
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" OnClientClick="getInputValue(this);" />
        <br />
        <br />
        <asp:Label ID="Label1" runat="server" Text="HiddenField Value:"></asp:Label>
        <asp:HiddenField ID="HiddenField1" runat="server" />
    </ContentTemplate>
</asp:UpdatePanel>

C＃代码隐藏

protected void Button1_Click(object sender, EventArgs e)
{
    Label1.Text += "<br />Input 1x2: " + HiddenField1.Value;
}

Answer 2

如果您有Id，则可以在输入中使用。

protected void Button1_Click(object sender, EventArgs e)
{
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    sb.Append(@"<script language='javascript'>");
    sb.Append(@"$('#YOUR_IDINPUT').val('"+SomeValue+"');");
    sb.Append(@"</script>");
    ScriptManager.RegisterStartupScript(Button1,this.GetType(), "JSCR", 
    sb.ToString(),false);
}

对不起，如果我不能帮你。