How to store a dataset in a viewstate

Question

Hi any body please How to store a dataset in a viewstate hot to store dataset in vew state.

Deepak Tewatia · Answer

Certainly! Within the realm of C# Corner technology storing a dataset in a viewstate involves a few steps. First you'll need to serialize the dataset and then store it in the viewstate. Here's an example of how you can achieve this using C#: // Serialize and store dataset in viewstate private void StoreDatasetInViewState() { // Assume ds is the dataset you want to store DataSet ds = GetDatasetFromSomewhere(); // Replace with your dataset retrieval logic if (ds != null) { // Serialize dataset to byte array byte[] dsBytes; using (MemoryStream ms = new MemoryStream()) { ds.WriteXml(ms XmlWriteMode.WriteSchema); dsBytes = ms.ToArray(); } // Store byte array in viewstate ViewState[MyDataset] = dsBytes; } } // Retrieve dataset from viewstate private DataSet GetDatasetFromViewState() { byte[] dsBytes = ViewState[MyDataset] as byte[]; if (dsBytes != null) { // Deserialize byte array to dataset DataSet ds = new DataSet(); using (MemoryStream ms = new MemoryStream(dsBytes)) { ds.ReadXml(ms XmlReadMode.ReadSchema); } return ds; } return null; } In this code `StoreDatasetInViewState` serializes the dataset into a byte array and stores it in the viewstate. `GetDatasetFromViewState` retrieves the byte array from the viewstate and deserializes it back into a dataset. Please note that storing large datasets in viewstate can impact page performance and increase page size. It's essential to evaluate whether viewstate is the best option for your scenario and consider alternatives such as session state or caching for larger datasets. I hope this helps! Let me know if you have any more questions related to C# Corner technology.