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TextBox só pode aceitar Valores Numéricos


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Você pode colocar um filtro no evento KeyDown que bloqueia teclas não numéricas. Você não colocou que interface esta usando então estou assumindo que é WPF. Para ASP.net da para usar JavaScript e para winforms existe o masked textbox que permite restringir a entrada do usuário.

Fernando Lage Bastos - MCP/MCTS/MCPD

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