删除TableLayoutPanel中的特定行
删除TableLayoutPanel中的特定行
提问于 2013-03-21 05:36:24
我有一个TableLayoutPanel，我可以通过编程的方式向其中添加行。用户基本上选择了一个属性，然后该属性与一些控件一起显示在表中。我想我在这里有一个普遍的理解问题，我会试着解释一下。
每行中的一个控件是“delete”按钮。该按钮应该会删除它所在的行。我所做的是向按钮添加一个eventhandler，并设置当前行数。
deleteTalent.Click += (sender, e) => buttonClickHandler(numberOfRows);处理程序代码：
private void buttonClickHandler(int rowCount)
{
int count = rowCount - 1;
for (int i = count; i < (count + 5); i++)
{
balanceTable.Controls.RemoveAt(count);
}
balanceTable.RowStyles.RemoveAt(count);
balanceTable.RowCount--;
}我盯着它看了几个小时，玩了几个小时。但是我找不到一个有效的干净的解决方案。我也是C#的新手
下面是创建新行的完整函数：
private void addBalanceItems(ToolStripMenuItem item)
{
int numberOfRows = balanceTable.RowCount;
if (numberOfRows > 1)
{
balanceTable.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.AutoSize));
}
balanceTable.Height = numberOfRows * 45;
Steigerungsrechner rechner = new Steigerungsrechner();
string tag = item.Tag.ToString();
//change that asap :(
if (tag == "A") { rechner.column = 1; }
if (tag == "B") { rechner.column = 2; }
if (tag == "C") { rechner.column = 3; }
if (tag == "D") { rechner.column = 4; }
if (tag == "E") { rechner.column = 5; }
if (tag == "F") { rechner.column = 6; }
if (tag == "G") { rechner.column = 7; }
if (tag == "H") { rechner.column = 8; }
Label talentName = new Label();
talentName.Text = item.Text;
talentName.Height = standardHeight;
talentName.TextAlign = ContentAlignment.MiddleLeft;
talentName.AutoSize = true;
Label cost = new Label();
cost.TextChanged += (sender, e) => costChangeHandler(cost);
cost.Height = standardHeight;
cost.TextAlign = ContentAlignment.MiddleLeft;
TextBox startValue = new TextBox();
startValue.TextChanged += (sender, e) => startValueChangeHandler(rechner, startValue, cost);
startValue.Height = standardHeight;
startValue.TextAlign = HorizontalAlignment.Center;
TextBox endValue = new TextBox();
endValue.TextChanged += (sender, e) => endValueChangeHandler(rechner, endValue, cost);
endValue.Height = standardHeight;
endValue.TextAlign = HorizontalAlignment.Center;
Button deleteTalent = new Button();
deleteTalent.Text = "x";
deleteTalent.Click += (sender, e) => buttonClickHandler(numberOfRows);
deleteTalent.Height = standardHeight;
balanceTable.Controls.Add(talentName);
balanceTable.Controls.Add(startValue);
balanceTable.Controls.Add(endValue);
balanceTable.Controls.Add(cost);
balanceTable.Controls.Add(deleteTalent);
balanceTable.Visible = true;
balanceTable.RowCount++;
}任何帮助都将不胜感激！:)
回答 2
Stack Overflow用户
发布于 2015-07-13 03:58:25
下面是一个静态类，它可以帮助您通过索引删除任何行：
using System.Windows.Forms;
public static class TableLayoutHelper
{
public static void RemoveArbitraryRow(TableLayoutPanel panel, int rowIndex)
{
if (rowIndex >= panel.RowCount)
{
return;
}
// delete all controls of row that we want to delete
for (int i = 0; i < panel.ColumnCount; i++)
{
var control = panel.GetControlFromPosition(i, rowIndex);
panel.Controls.Remove(control);
}
// move up row controls that comes after row we want to remove
for (int i = rowIndex + 1; i < panel.RowCount; i++)
{
for (int j = 0; j < panel.ColumnCount; j++)
{
var control = panel.GetControlFromPosition(j, i);
if (control != null)
{
panel.SetRow(control, i - 1);
}
}
}
var removeStyle = panel.RowCount - 1;
if (panel.RowStyles.Count > removeStyle)
panel.RowStyles.RemoveAt(removeStyle);
panel.RowCount--;
}
}值得一提的是:我们通过panel.GetControlFromPosition(...)获得的控件必须是可见的，否则它将返回null而不是不可见的控件。
Stack Overflow用户
发布于 2017-03-22 14:41:58
首先删除rowCount的现有控件
for(int i = 0; i < panel.ColumnCount; i++){
Control Control = panel.GetControlFromPosition(i, rowCount);
panel.Controls.Remove(Control);
}然后删除行
panel.RowStyles.RemoveAt(rowCount-1);页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/15535214
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