如何让动态创建的文本框的文本值 [英] how to get the text value of dynamically created textbox

问题描述

我要得到我动态创建的，当我点击一个按钮，我的文本框的值

I want to get the value of my textbox that I created dynamically when I click a button

我需要做的这个事业我的文本框的值用于从数据库中检索数据。

I need to do this cause the value of my textbox is used for retrieve data from database

如何能实现我这个东西？

how could I achieved this thing??

流量按钮点击 - 创建文本框 - 按钮单击 - - 与值填充文本框获取文本框的文本

the flow is Button click - creating textbox - filling textbox with value - Button Click - Get Text of textbox

这是我的code键使文本框

here is my code to make the textbox

Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    For i As Integer = 0 To 4
        textbox = New TextBox With {.ID = "TextBox" & i}
        plchld.Controls.Add(textbox)
    Next
End Sub

我已经试过这样的事情，但code没有工作

I have tried something like this but the code didn't work

Protected Sub OkButton_Click(sender As Object, e As EventArgs) Handles OkButton.Click
    Dim a(5) As String
    For i As Integer = 0 To 4
        a(i) = CType(plchld.FindControl("Textbox" & i), TextBox).Text
    Next
End Sub

在此先感谢您的帮助。

thanks in advance for any help

编辑的答案

我已经找到解决这个的方式。我使用的Request.Form让我的文本框的值。

I've found the way to solve this. I use request.form to get the value of my textbox.

感谢任何人，参加

问候，

朱利安

推荐答案

这是我如何我的asp.net应用程序完成的。

This is how I have done in my asp.net application.

创建动态控制

TextBox txtDate = new TextBox();
txtDate.EnableViewState = true;
txtDate.ID = "PreixValue" + 1;
txtDate.Text = "07 Feb 2014"
pnl.controls.add(txtdate); 

要从该文本框检索值

DateTime datefrom = DateTime.Now ;

                for (int cnt = 0; cnt < Request.Form.Count; cnt++)
                {
                    if (Request.Form.AllKeys[cnt].Contains("Prefixvalue"))
                    {
                        int ParamStartPoint = Request.Form.AllKeys[cnt].IndexOf("Prefix") + 4;
                        int ParamNameLength = Request.Form.AllKeys[cnt].Length - ParamStartPoint;

                        string[] ControlName = Request.Form.AllKeys[cnt].Substring(ParamStartPoint, ParamNameLength).Split('$');

                                if (ControlName[0] == "Date From")
                                {

                    datefrom = DateTime.Parse(Request.Form[cnt]); 
                    //datefrom has value now
                                }
    }
}

这是我如何我的web应用程序做的，但可能有其他的方式实现这一目标。

This is how I have done in my web application, but there may be other ways achieve this.

基本上当您创建表单动态控制，这将是可以通过的Request.Form。

basically when you create Dynamic control in webform this will be available through Request.Form.

希望这可以帮助你。

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