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我如何删除空白空间,即我希望数据网格根据编号自动调整大小。的行。我知道列可以通过在AutoSizeColumnMode中使用填充值来实现,但AutoSizeRowsMode没有填充值。
答案 0 :(得分:11)
可以这样做,你必须在添加或删除行时调整ClientSize。但是,一旦垂直滚动条出现并且网格高度不能按行高分割,它就不会完全隐藏背景。在项目中添加一个新类并粘贴下面显示的代码。编译。将新控件从工具箱顶部拖放到表单上。
using System;
using System.Drawing;
using System.Windows.Forms;
class AutoSizeGrid : DataGridView {
private int gridHeight;
private bool resizing;
protected override void OnClientSizeChanged(EventArgs e) {
if (!resizing) gridHeight = this.ClientSize.Height;
base.OnClientSizeChanged(e);
}
protected override void OnRowsAdded(DataGridViewRowsAddedEventArgs e) {
setGridHeight();
base.OnRowsAdded(e);
}
protected override void OnRowsRemoved(DataGridViewRowsRemovedEventArgs e) {
setGridHeight();
base.OnRowsRemoved(e);
}
protected override void OnHandleCreated(EventArgs e) {
this.BeginInvoke(new MethodInvoker(setGridHeight));
base.OnHandleCreated(e);
}
private void setGridHeight() {
if (this.DesignMode || this.RowCount > 99) return;
int height = this.ColumnHeadersHeight + 2;
if (this.HorizontalScrollBar.Visible) height += SystemInformation.HorizontalScrollBarHeight;
for (int row = 0; row < this.RowCount; ++row) {
height = Math.Min(gridHeight, height + this.Rows[row].Height);
if (height >= gridHeight) break;
}
resizing = true;
this.ClientSize = new Size(this.ClientSize.Width, height);
resizing = false;
if (height < gridHeight && this.RowCount > 0) this.FirstDisplayedScrollingRowIndex = 0;
}
}
答案 1 :(得分:9)
有点黑客但你可以试试这个:
dataGridView1.BackgroundColor = System.Drawing.SystemColors.Control;
顺便说一下,这是reported as a bug。
答案 2 :(得分:3)
设置datagrid的MaxHeight
属性。例如MaxHeight="150"
在我的情况下,我已用红色边框移除了您在上面网格中显示的空间。