根据输入文本框的值动态更改gridview

I have a textbox and a gridview. The gridview is populated based on the value entered in the textbox. Suppose I am entering any name in the textbox. As I type the name in the textbox, the results in the grid should change dynamically. For example, if I am entering John in the textbox, after entering Jo, the grid should populate the results that start with Jo and if I enter h the grid should populate the results with Joh and so on. Please suggest me a solution (in c#) for this. Thanks in advance.I have a textbox and a gridview. The gridview i