变量的绑定

一、协议中的变量使用

协议中使用脚本

参考数据采集与监控演示项目的demo，位置在格西测控大师的安装目录下：

X:/Geshe/GGenesis/Examples/Solutions/SCADA/SCADA/SCADA.gpj

可以看到，步骤退出时执行变量的更新：

	public Int32 EndExecute(Genesis.Sequence.IStepContext context, Genesis.Sequence.IStep step)
	{
		if (step.Result.Status == (int)ResultStatus.Passed)
		{
			Int16 temperature = (Int16)step.Result.DataFields[3].Value;
			DateTime time = DateTime.Now;
			// 设置变量表的变量值
			context.Variants["采集变量表/温度数据/时间"] = time;
			context.Variants["采集变量表/温度数据/温度值"] = temperature;
		}
		return 0;
	}

协议中对变量直接绑定

参考环境监测电子公告牌项目的demo，位置在格西测控大师的安装目录下：

X:/Geshe/GGenesis/Examples/Solutions/SCADA/BulletinBoard/BulletinBoard.gpj

打开序列，查看协议：

打开协议内容：

查看对应变量：

二、控件的变量绑定

参考环境监测电子公告牌项目的demo，位置在格西测控大师的安装目录下：

X:/Geshe/GGenesis/Examples/Solutions/SCADA/BulletinBoard/BulletinBoard.gpj

点击控件：

查看属性中的值：

绑定变量。

三、脚本中对变量赋值以及调用

参考变量演示项目的demo，位置在格西测控大师的安装目录下：

X:/Geshe/GGenesis/Examples/Basics/Variants/Variants.gpj

脚本中对基本变量进行赋值和调用例子：

context.Variants["ExtendedVars/Storage/File1/日期"] = DateTime.Now;
		
		bool v1 =  (bool)context.Variants["ExtendedVars/Storage/File1/数值Bool"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Bool"] = !v1;
		
		sbyte v2 =  (sbyte)context.Variants["ExtendedVars/Storage/File1/数值SByte"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值SByte"] = --v2;
		
		byte v3 =  (byte)context.Variants["ExtendedVars/Storage/File1/数值Byte"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Byte"] = ++v3;
		
		Int16 v4 =  (Int16)context.Variants["ExtendedVars/Storage/File1/数值Int16"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Int16"] = --v4;
		
		UInt16 v5 =  (UInt16)context.Variants["ExtendedVars/Storage/File1/数值UInt16"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值UInt16"] = ++v5;
		
		Int32 v6 =  (Int32)context.Variants["ExtendedVars/Storage/File1/数值Int32"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Int32"] = --v6;
		
		UInt32 v7 =  (UInt32)context.Variants["ExtendedVars/Storage/File1/数值UInt32"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值UInt32"] = ++v7;
		
		Int64 v8 =  (Int64)context.Variants["ExtendedVars/Storage/File1/数值Int64"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Int64"] = --v8;
		
		UInt64 v9 =  (UInt64)context.Variants["ExtendedVars/Storage/File1/数值UInt64"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值UInt64"] = ++v9;
		
		float v10 =  (float)context.Variants["ExtendedVars/Storage/File1/数值Float"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Float"] = (v10 + 1.1);
		
		double v11 =  (double)context.Variants["ExtendedVars/Storage/File1/数值Double"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Double"] = (v11 + 1.1);
		
		decimal v12 =  (decimal)context.Variants["ExtendedVars/Storage/File1/数值Decimal"].Value;
		context.Variants["ExtendedVars/Storage/File1/数值Decimal"] = (v12 + (decimal)1.1);
		
		context.Variants["ExtendedVars/Storage/File1/数值String"] = DateTime.Now.ToString("HHmmss.fff");
		
		context.Variants["ExtendedVars/Storage/File1/数值BitString"] = "0x12121234";