删除在按钮单击时动态创建的文本框 [英] Removing TextBoxes created Dynamically on Button click

问题描述

我尝试使用列表动态创建文本框.我现在需要的是，如何通过点击重置按钮重置我创建的所有文本框.

I have tried creating textboxes dynamically using lists. All i need now is, how can i reset all text boxes that i have created by hitting a reset button.

以下是我的代码:

public void button2_Click_1(object sender, EventArgs e)
{
    int number = Convert.ToInt32(textBox2.Text);

    List<TextBox> inputTextBoxes;
    inputTextBoxes = new List<TextBox>();

    for (int i = 1; i <= number; i++)
    {
        Label labelInput = new Label();
        TextBox textBoxNewInput = new TextBox();

        labelInput.Text = "Activity No: " + i;
        labelInput.Location = new System.Drawing.Point(30, textBox2.Bottom + (i * 40));
        labelInput.AutoSize = true;

        textBoxNewInput.Location = new System.Drawing.Point(labelInput.Width+60, labelInput.Top - 3);

        inputTextBoxes.Add(textBoxNewInput);

        this.Controls.Add(labelInput);
        this.Controls.Add(textBoxNewInput);
    }
}

推荐答案

将下面一行移到事件处理函数外(函数外但类内)

Move the following line outside the event handler function (outside the function but inside the class)

ListinputTextBoxes;

然后点击重置按钮

<代码>private void btnReset_Click(object sender, EventArgs e){foreach(输入文本框中的文本框txt){this.Controls.Remove(txt);}inputTextBoxes.Clear();}

更正了 foreach 循环中的类类型(从按钮到文本框)

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