diff --git a/DBMS/C-Sharp/Lab/Week1/Calculator/WindowsFormsApplication1/WindowsFormsApplication1.sln b/DBMS/C-Sharp/Lab/Week1/Calculator/WindowsFormsApplication1/WindowsFormsApplication1.sln
new file mode 100644
index 0000000..a59c903
--- /dev/null
+++ b/DBMS/C-Sharp/Lab/Week1/Calculator/WindowsFormsApplication1/WindowsFormsApplication1.sln
@@ -0,0 +1,20 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WindowsFormsApplication1", "WindowsFormsApplication1\WindowsFormsApplication1.csproj", "{0291B9FB-1278-4F05-850B-4CBC57A3B8E0}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0291B9FB-1278-4F05-850B-4CBC57A3B8E0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0291B9FB-1278-4F05-850B-4CBC57A3B8E0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0291B9FB-1278-4F05-850B-4CBC57A3B8E0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0291B9FB-1278-4F05-850B-4CBC57A3B8E0}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal