动态复选框CheckedChanged不是火

问题描述

我写了以下动态代码来调用CheckChanged事件。

但我无法调用此事件。



请给，给我帮忙解决实际问题是什么？







CheckBox chk = new CheckBox（） ;



string uniqueID = System.Guid.NewGuid（）。ToString（）。子串（0,5）;

chk.ID =chktrait+ cn.AspectID +_+ cn.TraitID + uniqueID;

chk.Text = cn.ValueName;

chk.AutoPostBack = true;

chk.CheckedChanged + = new EventHandler（CheckBox_CheckChanged）;







protected void CheckBox_CheckChanged（object sender，EventArgs e）

{

//写入触发事件的控件的客户端ID

响应。写（（（CheckBox）发送者）.ClientID）;

}

I written following dynamic code for call check box CheckChanged event.
But I unable to call this event.

Please, give me help what is the actual issue?



CheckBox chk = new CheckBox();

string uniqueID = System.Guid.NewGuid().ToString().Substring(0, 5);
chk.ID = "chktrait" + cn.AspectID + "_" + cn.TraitID + uniqueID;
chk.Text = cn.ValueName;
chk.AutoPostBack = true;
chk.CheckedChanged += new EventHandler(CheckBox_CheckChanged);



protected void CheckBox_CheckChanged(object sender, EventArgs e)
{
//write the client id of the control that triggered the event
Response.Write(((CheckBox)sender).ClientID);
}

推荐答案

protected void Page_Load(object sender, EventArgs e)
        {
            CheckBox chk = new CheckBox();

            string uniqueID = System.Guid.NewGuid().ToString().Substring(0, 5);
            chk.ID = "chkTest";
            chk.Text = "Test";
            chk.AutoPostBack = true;
            chk.CheckedChanged += new EventHandler(CheckBox_CheckChanged);
            this.form1.Controls.Add(chk);
        }

        protected void CheckBox_CheckChanged(object sender, EventArgs e)
        {
            //write the client id of the control that triggered the event
            lblTest.Text = ((CheckBox)sender).ClientID;
        }

希望这会有所帮助。

Hope this will be of help.

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