Datagrid columns contains value

I'm working application in C开发者_如何学JAVA#, .NET.

How can I check in DataGridView component if some columns contains specific value? I have some contains methods, but I don't know how I would use them..

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If I am correct then you want Column value not RowCell Value, and its in Windows app.

You can loop through each column in datagridview

Like..

        foreach (var GridColumn in DataGridView1.Columns )
        {
             //get value from column
         }

For Rows,

       foreach (DataGridViewRow item in dataGridView1.Rows )
        {
            if(item.Cells["Column Name"].Value==your condition)
                //her you got the cell to work with

        }

You can use LINQ for same

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Or you can act directly on the datasource, if it is datatable, dataset, list ..

You have methods to do that on all data collections types..

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protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow) 
    {
        GridViewRow row = (GridViewRow)e.Row.DataItem;
        if (row["yourColumnName"] == "YourDesiredValue")
            row["yourColumnName"] = "changevalue";
    }
}

You can find and change value of column(s)

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foreach(Datagridviewrow item in datagridview1.rows)
{
    if(item.cell[indexNumber].value.tostring().contains("your word"));
    {
        messagebox.show("contains")
    }
    else
    {
        messagebox.show("NOT contains")
    }
}