Getting exception inside datagridview looping.

Question

Hi all expert I have two fields in data grid one comboxbox type another is texbox type. As per user selection I want to add multiple record at a time in backend. Here is my looping code…pls somebody help………help…help………me..inside looping code I am getting casting exceptions. Unable to cast object of type 'System.String' to type 'Create_Sales_Back_Order.DynamicsGPService.SalesBackorderLine[]'. for (int counter = 0; counter { salesBackorder.Lines = (SalesBackorderLine[])CreateSalesBackOrderGrid.Rows[counter].Cells[0].Value; //here getting this exception. //here I should write insert method. }

Sam Hobbs · Answer

Please don't create multiple threads about the same problem. See Multiple record not saving from datagrid using webservice insert method. You should have answered my questions instead of creating a new thread about the same problem.

India Programmer · Answer

1)First of all though I am entering 3 records…its showing row count as 4. 2) SalesBackorderLine[] lines = new SalesBackorderLine[CreateSalesBackOrderGrid.Rows.Count]; In this lines =null showing.. and new SalesBackorderLine[CreateSalesBackOrderGrid.Rows.Count]=4 showing. 3) Lines(CreateSalesBackOrderGrid.Rows.Count) = salesBackorderLine ..here value showing as 4

Manikavelu Velayutham · Answer

Before Iterating the for loop just check whether both the counts are same CreateSalesBackOrderGrid.Rows.Count and lines If both are same then ther wont be a chance of index out of range error. if both are not same surely it will throw the error put a break point and debug each loop there you can easily fix the bug let me know once your resolved this issue

India Programmer · Answer

Still getting the same exception Index was outside the bounds of the array

Manikavelu Velayutham · Answer

Replace the below code for (int counter = 0; counter with this code for (int counter = 0; counter

India Programmer · Answer

Hi Now I have changed the code: getting exception.. Index out of range. SalesBackorderLine[] lines = new SalesBackorderLine[CreateSalesBackOrderGrid.Rows.Count]; for (int counter = 0; counter { salesBackorderLine = new SalesBackorderLine(); salesBackorderLine.ItemKey = itemKey; salesBackorderLine.Quantity = backorderCount; lines[CreateSalesBackOrderGrid.Rows.Count]=salesBackorderLine ; //in this line getting exception Index out of range. }

Manikavelu Velayutham · Answer

CreateSalesBackOrderGrid.Rows[counter].Cells[0].Value --> It will be of mostly string type you cant cast to (SalesBackorderLine[]) type. May i know what type is it