LinqDataSource.Insert(IDictionary) Method
Definition
Important
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Performs an insert operation.
public:
int Insert(System::Collections::IDictionary ^ values);
public int Insert (System.Collections.IDictionary values);
member this.Insert : System.Collections.IDictionary -> int
Public Function Insert (values As IDictionary) As Integer
Parameters
- values
- IDictionary
The row values to be inserted into the data source.
Returns
The number of rows affected by the insert operation.
Examples
The following example shows how to programmatically insert a new record in the data source after the user clicks a button. The code passes a ListDictionary object that contains default values to the Insert method.
protected void Add_Click(object sender, EventArgs e)
{
System.Collections.Specialized.ListDictionary listDictionary
= new System.Collections.Specialized.ListDictionary();
listDictionary.Add("ProductName", TextBox1.Text);
listDictionary.Add("ProductCategory", "General");
listDictionary.Add("Color", "Not assigned");
listDictionary.Add("ListPrice", null);
LinqDataSource1.Insert(listDictionary);
TextBox1.Text = String.Empty;
DetailsView1.DataBind();
}
Protected Sub Add_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim listDictionary As New System.Collections.Specialized.ListDictionary()
listDictionary.Add("ProductName", TextBox1.Text)
listDictionary.Add("ProductCategory", "General")
listDictionary.Add("Color", "Not assigned")
listDictionary.Add("ListPrice", Nothing)
LinqDataSource1.Insert(listDictionary)
TextBox1.Text = String.Empty
DetailsView1.DataBind()
End Sub
The following example shows the markup for the previous example.
<asp:LinqDataSource
ContextTypeName="ExampleDataContext"
TableName="Products"
EnableInsert="true"
ID="LinqDataSource1"
runat="server">
</asp:LinqDataSource>
<asp:DetailsView
DataSourceID="LinqDataSource1"
AllowPaging="true"
ID="DetailsView1"
runat="server">
</asp:DetailsView>
New product name:<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:button ID="Button1"
Text="Add new product with default values"
runat="server"
onclick="Add_Click" />
<asp:LinqDataSource
ContextTypeName="ExampleDataContext"
TableName="Products"
EnableInsert="true"
ID="LinqDataSource1"
runat="server">
</asp:LinqDataSource>
<asp:DetailsView
DataSourceID="LinqDataSource1"
AllowPaging="true"
ID="DetailsView1"
runat="server">
</asp:DetailsView>
New product name:<br />
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br />
<asp:button ID="Button1"
Text="Add new product with default values"
runat="server"
onclick="Add_Click" />
Remarks
Typically, you do not have to call the Insert method from your code. The data-bound control will automatically call the Insert method when the user takes action to insert a new record. You explicitly call the Insert method when you want to create your own process for inserting data.
Applies to
.NET
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