Updating multiple rows in gridview

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Devexpress gridview delete row keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website.Dev Extreme React Grid is a component that displays table data from a local or remote source.Even if we wanted to update a thousand rows with different values, we could still do it with four statements.OK, that’s great, we have some theoretical approaches for reducing the number of queries, now what?In the case where the application server and database server are on different hosts, the round-trip will involve network latency as well.The dominant factor in the time taken to complete the overall operation tends to be the “admin” work in conveying the application’s intention to the database server rather than the actual updates to the database.For small numbers of rows requiring updates, it can be adequate to use an UPDATE statement for each row that requires an update.But if there are a large number of rows that require an update, then the overhead of issuing large numbers of UPDATE statements can result in the operation as a whole taking a long time to complete.

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If there is no database-specific subclass for the database in use, then will just use the base class which implements approaches that should work for any SQL database.In this case, will spot that the target values are all 1200, and will effect the desired changes using a single UPDATE statement as described above.(It will use placeholders and parameter binding if it thinks it’s appropriate.) If given our second example with two distinct values, will spot that there are two distinct values, 12, and will effect this with two UPDATE statements as described above.In case there are multiple button columns in a gridview, we can make use of commandname attribute to identify the operation to be performed based on this command.Net Grid View on Button click using C#; Dynamically add and delete rows from ASP. You can create your own custom buttons and define custom actions for them.

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