CODEWITHSUNDEEP
c#asp.net-mvctextboxeditorfor
Chris
Chris

Reputation: 438

Determine Editorfor or TextBoxFor

I'm new to MVC/C# and have the following code in a CSHTML file. Basically it determines the operation being performed (insert or update) and based on the the result decide whether the field should be displayed read-only or editable. 

@if (Model.DatabaseOperationFlag == DatabaseOperation.Update)
{
@Html.TextBoxFor(model => model.BmUnit.BMU_ID, new {@readonly = "readonly"})
}
else
{
@Html.EditorFor(model => model.BmUnit.BMU_ID)
}

The code is going to be needed throughout the app but I am unsure where/how I can write some sort of control so I can use code similar:

@Html.ReadOnlyOnUpdate(model => model.BmUnit.BMU_ID, model.DatabaseOperation);

The ReadOnlyOnUpdate would then do the logic in the first code section.

Thanks in advance

Chris

Upvotes: 1

Views: 109

Answers (1)

Justin Chmura
Justin Chmura

Reputation: 430

You could create a helper that would do that for you. Create a class with a method that extends off of HtmlHelper:

public static class Helpers
{
    public static IHtmlString ReadOnlyOnUpdate(this HtmlHelper helper, int BMU_ID, DatabaseOperation operation)
    {
        var attrs = new Dictionary<string, object>();
        if (operation == DatabaseOperation.Update)
        {
            attrs.Add("readonly", "readonly");
        }
        return helper.TextBox("BMU_ID", BMU_ID, attrs);
    }
}

Through the use of generics, you could probably setup an extension method that you could do if off the model and the BMU_ID specifically. Create something similar to EditorFor:

public static IHtmlSTring ReadOnlyOnUpdateFor<TModel, TProperty>(this HtmlHelper<TModel> helper, Expression<TModel, TProperty>> expression, DatabaseOperation operation)

You would just have to replace TModel with your model type and TProperty with the type of BMU_ID I believe.

Hopefully this helps.

Upvotes: 1

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