Invalid tempate error on nested grids inside editortemplate popup of asp net cor

Introduction

ASP.NET is a popular programming language used for building web applications. It provides a framework for developing websites, web services, and web applications. One common issue that developers may encounter while working with ASP.NET is the “Invalid template error on nested grids inside editortemplate of ASP.NET Core”. In this article, we will explore this issue and provide a solution with examples.

The Issue

The “Invalid template error on nested grids inside editortemplate popup of ASP.NET Core” error when using nested grids inside an EditorTemplate popup in an ASP.NET Core application. This error typically arises when attempting to render a nested grid a popup window, and it prevents the proper rendering of the grid.

Solution

To solve this issue, we need to modify the code in the EditorTemplate popup to ensure that the nested grid is rendered . Let's take a look at an example:


@model MyViewModel

@{
    Layout = null;
}

Parent Grid

@ (var item in Model.ParentItems) { }
Column 1 Column 2
@item.Column1 @item.Column2

Nested Grid

@foreach (var nestedItem in item.NestedItems) { }
Column 1 Column 2
@nestedItem.Column1 @nestedItem.Column2

In the above example, we have a parent grid that a nested grid. To avoid the “Invalid template error”, we have placed the nested grid inside a with a colspan="2" . This ensures that the nested grid is rendered correctly within the parent grid.

By following this approach, you can the “Invalid template error on nested grids inside editortemplate popup of ASP.NET Core” and successfully render nested grids within your ASP.NET Core application.

Conclusion

The “Invalid template error on nested grids inside editortemplate popup of ASP.NET Core” can be resolved by modifying the code in the EditorTemplate popup. By placing the nested grid inside a element with a colspan="2" attribute, you can ensure that the nested grid is rendered correctly. This solution allows you to work with nested grids without encountering any errors in your ASP.NET Core application.

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