如何动态创建按钮单击事件? [英] How can create button click event dynamically?

问题描述

我使用以下代码在C#.net Windows应用程序中动态创建一个文本框和按钮.

Hi,

I create a text box and button dynamically in C# .net windows application by using following code.

private void lblNewUser_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
       {
           //UserName
           Label lblUN = new Label();
           lblUN.Text = "UserName";
           lblUN.Font = new Font(lblUN.Font, lblUN.Font.Style | FontStyle.Bold);
           lblUN.BackColor = Color.Transparent;
           lblUN.ForeColor = Color.White;
           lblUN.AutoSize=true;
           lblUN.Location = new Point(30,300);
           this.Controls.Add(lblUN);
           //Password
           Label lblPWD = new Label();
           lblPWD.Text = "Password";
           lblPWD.Font = new Font(lblPWD.Font,lblPWD.Font.Style|FontStyle.Bold);
           lblPWD.BackColor = Color.Transparent;
           lblPWD.ForeColor = Color.White;
           lblPWD.AutoSize = true;
           lblPWD.Location = new Point(30,350);
           this.Controls.Add(lblPWD);
           // Save Button
           Button btnSAVE = new Button();
           btnSAVE.Text="Save";
           btnSAVE.Font = new Font(btnSAVE.Font,btnSAVE.Font.Style|FontStyle.Bold);
           btnSAVE.Size = new Size(50,25);
           btnSAVE.BackColor = Color.Blue;
           btnSAVE.ForeColor = Color.White;
           btnSAVE.Location = new Point(100, 450);
           this.Controls.Add(btnSAVE);
        }

现在，当我按下保存"按钮时，我想将在该文本框中输入的值存储到数据库中.请给我答复.在哪里使用以下代码.

Now when I press this Save button,I want to store the value which is entered in that text box into database. Kindly send me answer.Where shouid I use the following codes.

btnobj1.Click+=new System.EventHandler(ButtonClickHandler);

private void ButtonClickHandler(object sender, EventArgs e) {
    Button button = sender as Button;
    if (button.Text == "Save") {
        //Do whatever
    }
}

谢谢，
Viswanathan.M


代码在"pre"标记中被阻止[/编辑]

thanks,
Viswanathan.M


Code is blocked in "pre" tags[/Edited]

推荐答案

btnobj1.Click+=new System.EventHandler(ButtonClickHandler);

private void ButtonClickHandler(object sender, EventArgs e) {
    Button button = sender as Button;
    if (button.Text == "Save") {
        //Do whatever
    }
}

检查此链接.

http://www.dotnetspider.com/resources/26678- How-add-click-event-for-dynamically-generated.aspx [

Check this link.

http://www.dotnetspider.com/resources/26678-How-add-click-event-for-dynamically-generated.aspx[^]

您需要为按钮OnClick事件创建事件处理程序.

you need to create the eventhandler for the button OnClick event.

btnobj1.Click += new EventHandler(btnobj1_Click);

你应该有方法

and you should have the method

private void btnobj1_Click(Object sender, EventArgs e)
{
// here you can play with the txtobj3.Text
}

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