Resolve #571, init remove conditional format support

README.md

@@ -14,7 +14,7 @@
 ## Introduction
 
 Excelize is a library written in pure Go providing a set of functions that allow you to write to and read from XLSX files. Supports reading and writing XLSX file generated by Microsoft Excel™ 2007 and later.
-Supports saving a file without losing original charts of XLSX. This library needs Go version 1.10 or later. The full API docs can be seen using go's built-in documentation tool, or online at [godoc.org](https://godoc.org/github.com/360EntSecGroup-Skylar/excelize) and [docs reference](https://xuri.me/excelize/).
+Supports saving a file without losing original charts of XLSX. This library needs Go version 1.10 or later. The full API docs can be seen using go's built-in documentation tool, or online at [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) and [docs reference](https://xuri.me/excelize/).
 
 ## Basic Usage
 

README_zh.md

@@ -13,7 +13,7 @@
 
 ## 简介
 
-Excelize 是 Go 语言编写的用于操作 Office Excel 文档类库，基于 ECMA-376 Office OpenXML 标准。可以使用它来读取、写入由 Microsoft Excel™ 2007 及以上版本创建的 XLSX 文档。相比较其他的开源类库，Excelize 支持写入原本带有图片(表)、透视表和切片器等复杂样式的文档，还支持向 Excel 文档中插入图片与图表，并且在保存后不会丢失文档原有样式，可以应用于各类报表系统中。使用本类库要求使用的 Go 语言为 1.10 或更高版本，完整的 API 使用文档请访问 [godoc.org](https://godoc.org/github.com/360EntSecGroup-Skylar/excelize) 或查看 [参考文档](https://xuri.me/excelize/)。
+Excelize 是 Go 语言编写的用于操作 Office Excel 文档类库，基于 ECMA-376 Office OpenXML 标准。可以使用它来读取、写入由 Microsoft Excel™ 2007 及以上版本创建的 XLSX 文档。相比较其他的开源类库，Excelize 支持写入原本带有图片(表)、透视表和切片器等复杂样式的文档，还支持向 Excel 文档中插入图片与图表，并且在保存后不会丢失文档原有样式，可以应用于各类报表系统中。使用本类库要求使用的 Go 语言为 1.10 或更高版本，完整的 API 使用文档请访问 [go.dev](https://pkg.go.dev/github.com/360EntSecGroup-Skylar/excelize/v2?tab=doc) 或查看 [参考文档](https://xuri.me/excelize/)。
 
 ## 快速上手
 

styles.go

@@ -2676,6 +2676,22 @@ func (f *File) SetConditionalFormat(sheet, area, formatSet string) error {
 	return err
 }
 
+// UnsetConditionalFormat provides a function to unset the conditional format
+// by given worksheet name and range.
+func (f *File) UnsetConditionalFormat(sheet, area string) error {
+	ws, err := f.workSheetReader(sheet)
+	if err != nil {
+		return err
+	}
+	for i, cf := range ws.ConditionalFormatting {
+		if cf.SQRef == area {
+			ws.ConditionalFormatting = append(ws.ConditionalFormatting[:i], ws.ConditionalFormatting[i+1:]...)
+			return nil
+		}
+	}
+	return nil
+}
+
 // drawCondFmtCellIs provides a function to create conditional formatting rule
 // for cell value (include between, not between, equal, not equal, greater
 // than and less than) by given priority, criteria type and format settings.

styles_test.go

@@ -1,6 +1,8 @@
 package excelize
 
 import (
+	"fmt"
+	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -166,6 +168,20 @@ func TestSetConditionalFormat(t *testing.T) {
 	}
 }
 
+func TestUnsetConditionalFormat(t *testing.T) {
+	f := NewFile()
+	assert.NoError(t, f.SetCellValue("Sheet1", "A1", 7))
+	assert.NoError(t, f.UnsetConditionalFormat("Sheet1", "A1:A10"))
+	format, err := f.NewConditionalStyle(`{"font":{"color":"#9A0511"},"fill":{"type":"pattern","color":["#FEC7CE"],"pattern":1}}`)
+	assert.NoError(t, err)
+	assert.NoError(t, f.SetConditionalFormat("Sheet1", "A1:A10", fmt.Sprintf(`[{"type":"cell","criteria":">","format":%d,"value":"6"}]`, format)))
+	assert.NoError(t, f.UnsetConditionalFormat("Sheet1", "A1:A10"))
+	// Test unset conditional format on not exists worksheet.
+	assert.EqualError(t, f.UnsetConditionalFormat("SheetN", "A1:A10"), "sheet SheetN is not exist")
+	// Save xlsx file by the given path.
+	assert.NoError(t, f.SaveAs(filepath.Join("test", "TestUnsetConditionalFormat.xlsx")))
+}
+
 func TestNewStyle(t *testing.T) {
 	f := NewFile()
 	styleID, err := f.NewStyle(`{"font":{"bold":true,"italic":true,"family":"Times New Roman","size":36,"color":"#777777"}}`)