我有TableLayoutPanel,我以编程方式添加Rows。用户基本上选择了一个属性,然后将其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,我会尝试解释它。
每行中的一个控件是“删除”按钮。该按钮应该删除它所在的行。我所做的是向按钮添加一个事件处理程序并设置当前的rowcount。
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--;
}
我看了好几个小时,玩了一下。但我找不到一个干净利落的解决方案。我也是C#的新手
这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++;
}
任何帮助将不胜感激! :)
是的,从TableLayoutPanel中删除任意行根本不直观。他们真的搞砸了这个设计。
删除行的唯一方法是设置RowCount
属性。仅这一点就足够奇怪了;这个属性确实看起来应该是只读的,每次看到它时,这样做的代码对我来说都是错误的。
但除此之外,这种设计的结果是你不能从中间删除行。重置RowCount
属性只会导致行从底部掉落。
解决方法有点笨拙,有多个步骤出错:
RowCount
属性的值来删除最后一行。一个快速的谷歌搜索显示有人有written and shared code声称这样做。这是在VB.NET中,但应该是easily translated到您的本地方言。
我承认我已经知道只是踢平底船并将我希望“删除”的行的RowHeight
设置为0.这样,自动调整就可以为你工作。但是,您可能仍希望删除它包含的控件。
这是一个静态类,可以帮助您通过它的索引删除任何行:
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--;
}
}
有一点需要提及:我们通过panel.GetControlFromPosition(...)
获得的控件必须是可见的,否则它将返回null
而不是隐形控件。
删除完整的表格 -
tableLayoutPanel1.Controls.Clear();
tableLayoutPanel1.RowStyles.Clear();
再次设置你的标题 -
tableLayoutPanel.RowCount = 1;
tableLayoutPanel.RowStyles.Add(new RowStyle(SizeType.Absolute, 20F));
tableLayoutPanel.Controls.Add(new Label() { Text = "MONTH", Font = new Font("Century Gothic", 12, FontStyle.Bold), ForeColor = Color.LightGray }, 0, tableLayoutPanel.RowCount - 1);
tableLayoutPanel.Controls.Add(new Label() { Text = "YEAR", Font = new Font("Century Gothic", 12, FontStyle.Bold), ForeColor = Color.LightGray }, 1, tableLayoutPanel.RowCount - 1);
tableLayoutPanel.Controls.Add(new Label() { Text = "MEASURED WAFERS", Font = new Font("Century Gothic", 12, FontStyle.Bold), ForeColor = Color.LightGray }, 2, tableLayoutPanel.RowCount - 1);
3列 - 1行
也许有人可以使用我的代码,工作正常...
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);
您无法在tablelayoutpanel
上完全删除行,但有一个解决方法:
2px
(例如tablelayoutpanel1.Rowstyle(index).height=2
)对我来说,这工作奇迹,行无论行索引如何都完全折叠了行。