How to compare textbox value with datatable column values using C# linq

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Hi all,

I am beginner of LINQ,My requirement is text box value to compare with data table column values.If the text box value contain the data table then return only those records.
i was try to create some LINQ query.but it's not working any one could you please help to me for this requirement.

What I have tried:

I was tried the below LINQ query.

DT=DT.AsEnumerable().Where(x=>x.Field<string>("ImportTargetEntity")==Textboxvalue)

Posted 2-Jun-20 21:22pm

Ram349

Updated 2-Jun-20 22:35pm

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Maciej Los 3-Jun-20 3:46am

Please, define "but it's not working".

Richard MacCutchan 3-Jun-20 3:59am

Have you actually run this code in the debugger to see what values are being tested?

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Maciej Los · Answer 1 · 2020-06-02T22:36:00

Seems, you want to filter data of one DataTable into another (or even the same) DataTable.

If you would like to load filtered data into the same DataTable:

C#

DT=DT.AsEnumerable()
    .Where(x=>x.Field<string>("ImportTargetEntity")==Textboxvalue)
    .CopyToDataTable();
DataGridView1.DataSource = DT;

If you would like to load data into another datatable:

C#

DataTable AnotherDT = DT.Clone();
AnotherDT = DT.AsEnumerable()
    .Where(x=>x.Field<string>("ImportTargetEntity")==Textboxvalue)
    .CopyToDataTable();
DataGridView2.DataSource = AnotherDT;