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When we have models where processes depend on exact values, for example in a selection by attributes, it is required that the end user does not make typing errors and uses the correct values so that the model does not present errors.<\/P>
This is when providing the user with a dropdown list, which allows them to select the correct value for the parameter, becomes very useful. <\/P>
Below are 3 simple steps that allow you to create, in Model Builder, a parameter that opens a dropdown list of options.<\/P>
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Step 1:<\/STRONG> Create<\/SPAN> a String type variable and convert it into a model parameter.<\/P><\/P>
<\/P><\/P>Step 2:<\/STRONG> Once the variable is created, right-click on a blank space in the model to open the Model Properties<\/STRONG> window. In the Parameters<\/STRONG> tab, find the parameter that will carry the dropdown list and in the Filter<\/STRONG> field change None<\/EM> to the option Value List.<\/EM><\/P><\/P>
<\/EM><\/P><\/P>Step 3:<\/STRONG> A new window will open where you will enter one by one the values of the dropdown list.<\/P><\/P>
<\/EM><\/P><\/P>Finally, when running the Model our parameter will display the list that has been configured.<\/P>
<\/P><\/P><\/P>model buidler Parameter List, #Listadesplegable<\/A><\/P><\/BODY><\/HTML>
