datagridview重叠_datagridview绑定list_datagridview右键菜单(58)

dgcb.DataSource = territoriesBindingSource; //unfiltered

this.filteredTerritoriesBS.RemoveFilter();

}

}

下面的示例演示了如何在CellValidating事件中填充(padding)一个单元为错误图标提供空间。因为默认情况下填充行为会影响错误图标的位置，该示例(TODO)。The below sample demonstrates how you can set a cell’s padding in the CellValidating event to provide spacing for the error icon. Since padding by default affects the location of the error icon the sample uses the CellPainting to move the position of the icon for painting. Lastly, the sample uses the tooltip control to display a custom tooltip when the mouse is over the cell to indicate what the problem is. This sample could also be written as a custom cell that overrides GetErrorIconBounds method to provide a location for the error icon that was independent of the padding.

private ToolTip errorTooltip;

private Point cellInError = new Point(-2, -2);

public Form1()

{

InitializeComponent();

dataGridView1.ColumnCount = 3;

dataGridView1.RowCount = 10;

}

private void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)

{

if (dataGridView1.IsCurrentCellDirty)

{

if (e.FormattedValue.ToString() == "BAD")

{

DataGridViewCell cell = dataGridView1[e.ColumnIndex, e.RowIndex];

cell.ErrorText = "Invalid data entered in cell";

// increase padding for icon. This moves the editing control

if (cell.Tag == null)

{

cell.Tag = cell.Style.Padding;

cell.Style.Padding = new Padding(0, 0, 18, 0);

cellInError = new Point(e.ColumnIndex, e.RowIndex);

}

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