Getting exception inside datagridview looping.

India Programmer

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 < (CreateSalesBackOrderGrid.Rows.Count); counter++)

{

salesBackorder.Lines = (SalesBackorderLine[])CreateSalesBackOrderGrid.Rows[counter].Cells[0].Value; //here getting this exception.

//here I should write insert method.

}

7 Replies

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Sam Hobbs16y ago
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 Programmer16y ago
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 Velayutham16y ago
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 Programmer16y ago

Still getting the same exception "Index was outside the bounds of the array"
Manikavelu Velayutham16y ago
Replace the below code
for (int counter = 0; counter < CreateSalesBackOrderGrid.Rows.Count; counter++)
with this code
for (int counter = 0; counter < CreateSalesBackOrderGrid.Rows.Count-1; counter++)
India Programmer16y ago
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 < CreateSalesBackOrderGrid.Rows.Count; 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 Velayutham16y ago
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