如何获取String.Format不解析{0} [英] How to get String.Format not to parse {0}

问题描述

我正在编写一个代码生成工具，该工具经常会出现这样的行

I am writing a code generation tool that frequently will have lines like

StringBuilder sp = new Stringbuilder();
sp.AppendFormat("        public {0}TextColumn()\n", className);
sp.AppendLine("        {"
sp.AppendLine("            Column = new DataGridViewTextBoxColumn();");
sp.AppendFormat("            Column.DataPropertyName = \"{0}\";\n", columnName);

但是我运行时遇到的问题

However the issue I am having is when I run in to a line like this.

sp.AppendFormat("return String.Format(\"{0} = '{0}'\", cmbList.SelectedValue);", columnName);

我要第一个 {0} 转到columnName的值，但我希望保留第二个 {0} 内部的 String.Format 会正确处理它。

I want the first {0} to turn in to whatever the value of columnName is but I want the seccond {0} to be left alone so the internal String.Format will process it correctly.

我该怎么做？

推荐答案

使用双花括号：

string result = string.Format("{{Ignored}} {{123}} {0}", 543);

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