datagridview重叠_datagridview绑定list_datagridview右键菜单(45)

buttonArea.Height -= buttonAdjustment.Height;

buttonArea.Width -= buttonAdjustment.Width;

// Draw the disabled button.

ButtonRenderer.DrawButton(graphics, buttonArea,

PushButtonState.Disabled);

// Draw the disabled button text.

if (this.FormattedValue is String)

{

TextRenderer.DrawText(graphics,

(string)this.FormattedValue,

this.DataGridView.Font,

buttonArea, SystemColors.GrayText);

}

}

else

{

// The button cell is enabled, so let the base class

// handle the painting.

base.Paint(graphics, clipBounds, cellBounds, rowIndex,

elementState, value, formattedValue, errorText,

cellStyle, advancedBorderStyle, paintParts);

}

}

}

3. 如何避免用户将焦点设置到指定的单元？

默认情况下DataGridView的操作（navigation）模型在限制用户将焦点置于指定的单元方面没有提供任何支持。你可以实现自己的操作逻辑，这需要重写合适的键盘、导航、鼠标方法，如DataGridView.OnKeyDown， DataGridView.ProcessDataGridViewKey， DataGridView.SetCurrentCellAddressCore， DataGridView.SetSelectedCellCore， DataGridView.OnMouseDown。

5. Why does the cell text show up with “square” characters where they should be new lines(TODO,未能实现该效果)?

By default, text in a DataGridViewTextBoxCell does not wrap. This can be controlled via the WrapMode property on the cell style (e.g. DataGridView.DefaultCellStyle.WrapMode). Because text doesn’t wrap, new line characters in the text do not apply and so they are displayed as a “non-printable” character. This is similar to setting a TextBox’s Text property to the same text when the TextBox’s MultiLine property is false.

6. 如何在单元内同时显示图标和文本？

DataGridView控件没有对在同一单元内同时显示图标和文本提供支持。但通过实现自定义的绘制事件，如CellPaint 事件，你可以轻松实现这个效果。

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