GridView's UpdateMethod not firing
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24-06-2021 - |
题
I've got a GridView that I bind to a ObjectDataSource programmatically, like:
ObjectDataSource risks = new ObjectDataSource("Risks", "RetrieveProjectRisk");
risks.TypeName = "Promanto.ProjectRisks";
risks.DataObjectTypeName = "Promanto.ProjectRisk";
risks.SelectMethod = "RetrieveProjectRisk";
risks.DeleteMethod = "DeleteProjectRisk";
risks.InsertMethod = "AddProjectRisk";
risks.UpdateMethod = "UpdateProjectRisk";
risks.SelectParameters.Add("WhereClause", TypeCode.String, "ProjectID ='PR0002'");
RisksGrid.DataSource = risks;
RisksGrid.DataBind();
But when I click the edit button and I then update my values, I firstly get an error that RowUpdating should exist. When I add it, I'm not sure what to put in it. Isn't my UpdateMethod "UpdateProjectRisk" suppose to fire automatically?
解决方案
When you use ObjectDataSource
, providing the UpdateMethod
isn't enough.
Your update method will need parameters as to which row to update. The gridview does not provide this on its own.
You need to implement the RowUpdating
to provide the UpdateParameters
needed to updated your ObjectDataSource
Take a look at this ObjectDataSource Example
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