c# - how to update gridview based on dropdownlist item

Question

I am creating a web page that contains one Dropdownlist and Gridview.

Query is Dropdownlist will contains SQL Server database table list. When I select a table name from dropdownlist the Gridview needs to show entire table data and able to perform edit, update, delete, cancel actions.

When I click edit, Gridview need to show Update and Cancel buttons and it update should update dropdownlist table and also delete.

Please any one can help.

Thanks in advance.

Answer 1

このようにドロップダウンの変更された選択したインデックスでグリッドビューを再バインドする必要があります

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
    gridview.DataSource = dataSource;
    gridview.DataBind();
}

datasource はデータベースクエリの結果です

Answer 2

dropdoenlist の変更をフックしてから、グリッドを更新する必要があります

protected void YourDropDownList_SelectedIndexChanged(object sender, EventArgs e)
{
    YouGridview.DataSource = YourdataSource;
    YouGridview.DataBind();
}