.net DataGirdView 通过列索引修改单元格字体

场景是这样、我需要DataGirdView某几列数量大于0字体就变成蓝色，某几列超过标准值字体就变成红色

具体列名属性

    void InitCols(){var col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "OrderNo", " 工单号");col.Width = 125;// col.Frozen = true;_DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "PrdCode", "料号");_DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "MaterialName", "型号");col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "PlanStartDate", " 计划工单时间");col.DefaultCellStyle.Format = "yyyy-MM-dd";// col.Frozen = true;col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "OrderCount", " 工单投产量(K)");col.DefaultCellStyle.Format = "0.###";//col.Frozen = true;col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "GJKS", " 固晶");col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "GJJS", " 待固晶");col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "HXKS", " 焊线");// col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "HXJS", " 待焊线");// col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "MYKS", " 模压");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "MYJS", " 待模压");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "QGKS", " 切割");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "QGJS", " 待切割");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "FGKS", " 分光");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "FGJS", " 待分光");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "BDKS", " 编带");//col.Frozen = true;col.DefaultCellStyle.Format = "0.###";col = _DataGridView.BuildCol<DataGridViewTextBoxColumn>(dgvDetail, "BDJS", " 编带结束");// col.Frozen = true;col.DefaultCellStyle.Format = "0.###";}

添加事件

在列名字前加上DataGirdView_col就能检索到对应列

方法的具体编写

private void dgvDetail_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e){

        DataGridView dgv = (DataGridView)sender;// 判断当前单元格所在的列是否是待完成列// 您可以根据列名或者列索引来判断// 在这个示例中，我们假设这些列是按列名来判断的string[] completionColumns = { "dgvDetail_colGJJS", "dgvDetail_colHXJS", "dgvDetail_colMYJS", "dgvDetail_colQGJS", "dgvDetail_colFGJS", "dgvDetail_colBDJS" };string columnName = dgv.Columns[e.ColumnIndex].Name;// 如果列名在待完成列数组中if (completionColumns.Contains(columnName)){// 获取单元格的值if (e.Value != null && decimal.TryParse(e.Value.ToString(), out decimal cellValue)){// 如果单元格的值大于 0，则将字体颜色设置为蓝色if (cellValue > 0){e.CellStyle.ForeColor = Color.DarkBlue;}else{// 重置为默认颜色e.CellStyle.ForeColor = dgv.DefaultCellStyle.ForeColor;}}}string[] processColumns = { "dgvDetail_colGJKS", "dgvDetail_colHXKS", "dgvDetail_colMYKS", "dgvDetail_colQGKS", "dgvDetail_colFGKS", "dgvDetail_colBDKS" };// 检查列名是否是工序实际数量列if (processColumns.Contains(columnName)){// 获取当前行var row = dgv.Rows[e.RowIndex];// 获取当前单元格的实际数量值if (decimal.TryParse(row.Cells[columnName].Value?.ToString(), out decimal actualQty)){// 获取工单投产量if (decimal.TryParse(row.Cells["dgvDetail_colOrderCount"].Value?.ToString(), out decimal planQty)){// 比较实际数量和工单投产量if (actualQty > planQty){// 如果实际数量大于工单投产量，将单元格的字体颜色设置为红色e.CellStyle.ForeColor = Color.Red;}else{// 否则保持默认颜色e.CellStyle.ForeColor = dgv.DefaultCellStyle.ForeColor;}}}}}